Initial commit: Pole Dance Championships App

Full-stack mobile app for pole dance championship management. Backend: FastAPI + SQLAlchemy 2 (async) + SQLite (dev) / PostgreSQL (prod) - JWT auth with refresh token rotation - Championship CRUD with Instagram Graph API sync (APScheduler) - Registration flow with status management - Participant list publish with Expo push notifications - Alembic migrations, pytest test suite Mobile: React Native + Expo (TypeScript) - Auth gate: pending approval screen for new members - Championships list & detail screens - Registration form with status tracking - React Query + Zustand + React Navigation v6 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-02-22 22:47:10 +03:00
commit 1c5719ac85
54 changed files with 2383 additions and 0 deletions
--- a/.claude/settings.json
+++ b/.claude/settings.json
@@ -0,0 +1,14 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(curl:*)",
+      "Bash(netstat:*)",
+      "Bash(findstr:*)",
+      "Bash(taskkill:*)",
+      "Bash(cmd.exe /c \"taskkill /PID 35364 /F\")",
+      "Bash(cmd.exe /c \"taskkill /PID 35364 /F 2>&1\")",
+      "Bash(echo:*)",
+      "Bash(cmd.exe /c \"ipconfig\")"
+    ]
+  }
+}
--- a/.claude/settings.local.json
+++ b/.claude/settings.local.json
@@ -0,0 +1,11 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(npx expo:*)",
+      "Bash(pip install:*)",
+      "Bash(python -m pytest:*)",
+      "Bash(python:*)",
+      "Bash(/d/PoleDanceApp/backend/.venv/Scripts/pip install:*)"
+    ]
+  }
+}
--- a/.env.example
+++ b/.env.example
@@ -0,0 +1,14 @@
+# PostgreSQL
+POSTGRES_PASSWORD=changeme
+
+# JWT — generate with: python -c "import secrets; print(secrets.token_hex(32))"
+SECRET_KEY=changeme
+
+# Instagram Graph API
+# 1. Convert your Instagram account to Business/Creator and link it to a Facebook Page
+# 2. Create a Facebook App at developers.facebook.com
+# 3. Add Instagram Graph API product; grant instagram_basic + pages_read_engagement
+# 4. Generate a long-lived User Access Token (valid 60 days; auto-refreshed by the app)
+INSTAGRAM_USER_ID=123456789
+INSTAGRAM_ACCESS_TOKEN=EAAxxxxxx...
+INSTAGRAM_POLL_INTERVAL=1800   # seconds between Instagram polls (default 30 min)
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,47 @@
+# Python
+__pycache__/
+*.py[cod]
+*.pyo
+*.pyd
+.Python
+*.egg-info/
+dist/
+build/
+.venv/
+venv/
+*.db
+*.db-shm
+*.db-wal
+
+# Alembic
+backend/alembic/versions/__pycache__/
+
+# Environment
+.env
+*.env.local
+
+# Node / Expo
+node_modules/
+.expo/
+dist/
+web-build/
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+*.orig.*
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# OS
+.DS_Store
+Thumbs.db
+
+# IDE
+.vscode/
+.idea/
+
+# Logs
+*.log
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -0,0 +1,10 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]
--- a/backend/alembic.ini
+++ b/backend/alembic.ini
@@ -0,0 +1,38 @@
+[alembic]
+script_location = alembic
+prepend_sys_path = .
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
--- a/backend/alembic/env.py
+++ b/backend/alembic/env.py
@@ -0,0 +1,48 @@
+import asyncio
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy.ext.asyncio import create_async_engine
+
+from app.config import settings
+from app.database import Base
+import app.models  # noqa: F401 — registers all models with Base.metadata
+
+config = context.config
+config.set_main_option("sqlalchemy.url", settings.database_url)
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+
+def run_migrations_offline() -> None:
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def do_run_migrations(connection):
+    context.configure(connection=connection, target_metadata=target_metadata)
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_migrations_online() -> None:
+    connectable = create_async_engine(settings.database_url)
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+    await connectable.dispose()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    asyncio.run(run_migrations_online())
--- a/backend/alembic/script.py.mako
+++ b/backend/alembic/script.py.mako
@@ -0,0 +1,26 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}
--- a/backend/alembic/versions/0001_initial_schema.py
+++ b/backend/alembic/versions/0001_initial_schema.py
@@ -0,0 +1,195 @@
+"""initial schema
+
+Revision ID: 0001
+Revises:
+Create Date: 2026-02-22
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0001"
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "users",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("email", sa.String(255), nullable=False),
+        sa.Column("hashed_password", sa.String(255), nullable=False),
+        sa.Column("full_name", sa.String(255), nullable=False),
+        sa.Column("phone", sa.String(50), nullable=True),
+        sa.Column("role", sa.String(20), nullable=False, server_default="member"),
+        sa.Column("status", sa.String(20), nullable=False, server_default="pending"),
+        sa.Column("expo_push_token", sa.String(512), nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("email"),
+    )
+
+    op.create_table(
+        "refresh_tokens",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("user_id", sa.Uuid(), nullable=False),
+        sa.Column("token_hash", sa.String(255), nullable=False),
+        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("revoked", sa.Boolean(), nullable=False, server_default="false"),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("token_hash"),
+    )
+    op.create_index("idx_refresh_tokens_user_id", "refresh_tokens", ["user_id"])
+
+    op.create_table(
+        "championships",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("title", sa.String(500), nullable=False),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.Column("location", sa.String(500), nullable=True),
+        sa.Column("event_date", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("registration_open_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("registration_close_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("status", sa.String(30), nullable=False, server_default="draft"),
+        sa.Column("source", sa.String(20), nullable=False, server_default="manual"),
+        sa.Column("instagram_media_id", sa.String(100), nullable=True),
+        sa.Column("image_url", sa.String(1000), nullable=True),
+        sa.Column("raw_caption_text", sa.Text(), nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("instagram_media_id"),
+    )
+
+    op.create_table(
+        "registrations",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("championship_id", sa.Uuid(), nullable=False),
+        sa.Column("user_id", sa.Uuid(), nullable=False),
+        sa.Column("category", sa.String(255), nullable=True),
+        sa.Column("level", sa.String(255), nullable=True),
+        sa.Column("notes", sa.Text(), nullable=True),
+        sa.Column("status", sa.String(20), nullable=False, server_default="submitted"),
+        sa.Column(
+            "submitted_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.Column("decided_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.ForeignKeyConstraint(
+            ["championship_id"], ["championships.id"], ondelete="CASCADE"
+        ),
+        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint(
+            "championship_id", "user_id", name="uq_registration_champ_user"
+        ),
+    )
+    op.create_index(
+        "idx_registrations_championship_id", "registrations", ["championship_id"]
+    )
+    op.create_index("idx_registrations_user_id", "registrations", ["user_id"])
+
+    op.create_table(
+        "participant_lists",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("championship_id", sa.Uuid(), nullable=False),
+        sa.Column("published_by", sa.Uuid(), nullable=False),
+        sa.Column("is_published", sa.Boolean(), nullable=False, server_default="false"),
+        sa.Column("published_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("notes", sa.Text(), nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.ForeignKeyConstraint(
+            ["championship_id"], ["championships.id"], ondelete="CASCADE"
+        ),
+        sa.ForeignKeyConstraint(["published_by"], ["users.id"]),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("championship_id"),
+    )
+
+    op.create_table(
+        "notification_log",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("user_id", sa.Uuid(), nullable=False),
+        sa.Column("registration_id", sa.Uuid(), nullable=True),
+        sa.Column("type", sa.String(50), nullable=False),
+        sa.Column("title", sa.String(255), nullable=False),
+        sa.Column("body", sa.Text(), nullable=False),
+        sa.Column(
+            "sent_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.Column("delivery_status", sa.String(30), server_default="pending"),
+        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(
+            ["registration_id"], ["registrations.id"], ondelete="SET NULL"
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index("idx_notification_log_user_id", "notification_log", ["user_id"])
+
+
+def downgrade() -> None:
+    op.drop_table("notification_log")
+    op.drop_table("participant_lists")
+    op.drop_table("registrations")
+    op.drop_table("championships")
+    op.drop_table("refresh_tokens")
+    op.drop_table("users")
--- a/backend/app/init.py
+++ b/backend/app/init.py
--- a/backend/app/config.py
+++ b/backend/app/config.py
@@ -0,0 +1,22 @@
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    model_config = SettingsConfigDict(env_file=".env", extra="ignore")
+
+    # Database
+    database_url: str = "postgresql+asyncpg://poledance:poledance@localhost:5432/poledance"
+
+    # JWT
+    secret_key: str = "dev-secret-key-change-in-production"
+    algorithm: str = "HS256"
+    access_token_expire_minutes: int = 15
+    refresh_token_expire_days: int = 7
+
+    # Instagram Graph API
+    instagram_user_id: str = ""
+    instagram_access_token: str = ""
+    instagram_poll_interval: int = 1800  # seconds
+
+
+settings = Settings()
--- a/backend/app/crud/init.py
+++ b/backend/app/crud/init.py
--- a/backend/app/crud/crud_championship.py
+++ b/backend/app/crud/crud_championship.py
@@ -0,0 +1,64 @@
+import uuid
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.championship import Championship
+
+
+def _uuid(v: str | uuid.UUID) -> uuid.UUID:
+    return v if isinstance(v, uuid.UUID) else uuid.UUID(str(v))
+
+
+async def get(db: AsyncSession, championship_id: str | uuid.UUID) -> Championship | None:
+    result = await db.execute(
+        select(Championship).where(Championship.id == _uuid(championship_id))
+    )
+    return result.scalar_one_or_none()
+
+
+async def get_by_instagram_id(
+    db: AsyncSession, instagram_media_id: str
+) -> Championship | None:
+    result = await db.execute(
+        select(Championship).where(
+            Championship.instagram_media_id == instagram_media_id
+        )
+    )
+    return result.scalar_one_or_none()
+
+
+async def list_all(
+    db: AsyncSession,
+    status: str | None = None,
+    skip: int = 0,
+    limit: int = 20,
+) -> list[Championship]:
+    q = select(Championship)
+    if status:
+        q = q.where(Championship.status == status)
+    q = q.order_by(Championship.event_date.asc().nullslast()).offset(skip).limit(limit)
+    result = await db.execute(q)
+    return list(result.scalars().all())
+
+
+async def create(db: AsyncSession, **kwargs) -> Championship:
+    champ = Championship(**kwargs)
+    db.add(champ)
+    await db.commit()
+    await db.refresh(champ)
+    return champ
+
+
+async def update(db: AsyncSession, champ: Championship, **kwargs) -> Championship:
+    for key, value in kwargs.items():
+        if value is not None:
+            setattr(champ, key, value)
+    await db.commit()
+    await db.refresh(champ)
+    return champ
+
+
+async def delete(db: AsyncSession, champ: Championship) -> None:
+    await db.delete(champ)
+    await db.commit()
--- a/backend/app/crud/crud_participant.py
+++ b/backend/app/crud/crud_participant.py
@@ -0,0 +1,62 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.participant_list import ParticipantList
+
+
+def _uuid(v: str | uuid.UUID) -> uuid.UUID:
+    return v if isinstance(v, uuid.UUID) else uuid.UUID(str(v))
+
+
+async def get_by_championship(
+    db: AsyncSession, championship_id: str | uuid.UUID
+) -> ParticipantList | None:
+    result = await db.execute(
+        select(ParticipantList).where(
+            ParticipantList.championship_id == _uuid(championship_id)
+        )
+    )
+    return result.scalar_one_or_none()
+
+
+async def upsert(
+    db: AsyncSession,
+    championship_id: uuid.UUID,
+    published_by: uuid.UUID,
+    notes: str | None,
+) -> ParticipantList:
+    existing = await get_by_championship(db, championship_id)
+    if existing:
+        existing.notes = notes
+        existing.published_by = published_by
+        await db.commit()
+        await db.refresh(existing)
+        return existing
+    pl = ParticipantList(
+        championship_id=championship_id,
+        published_by=published_by,
+        notes=notes,
+    )
+    db.add(pl)
+    await db.commit()
+    await db.refresh(pl)
+    return pl
+
+
+async def publish(db: AsyncSession, pl: ParticipantList) -> ParticipantList:
+    pl.is_published = True
+    pl.published_at = datetime.now(timezone.utc)
+    await db.commit()
+    await db.refresh(pl)
+    return pl
+
+
+async def unpublish(db: AsyncSession, pl: ParticipantList) -> ParticipantList:
+    pl.is_published = False
+    pl.published_at = None
+    await db.commit()
+    await db.refresh(pl)
+    return pl
--- a/backend/app/crud/crud_refresh_token.py
+++ b/backend/app/crud/crud_refresh_token.py
@@ -0,0 +1,43 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.refresh_token import RefreshToken
+
+
+async def create(
+    db: AsyncSession,
+    user_id: uuid.UUID,
+    token_hash: str,
+    expires_at: datetime,
+) -> RefreshToken:
+    rt = RefreshToken(user_id=user_id, token_hash=token_hash, expires_at=expires_at)
+    db.add(rt)
+    await db.commit()
+    await db.refresh(rt)
+    return rt
+
+
+async def get_by_hash(db: AsyncSession, token_hash: str) -> RefreshToken | None:
+    result = await db.execute(
+        select(RefreshToken).where(RefreshToken.token_hash == token_hash)
+    )
+    return result.scalar_one_or_none()
+
+
+async def revoke(db: AsyncSession, rt: RefreshToken) -> None:
+    rt.revoked = True
+    await db.commit()
+
+
+def is_valid(rt: RefreshToken) -> bool:
+    if rt.revoked:
+        return False
+    now = datetime.now(timezone.utc)
+    expires = rt.expires_at
+    # SQLite returns naive datetimes; normalise to UTC-aware for comparison
+    if expires.tzinfo is None:
+        expires = expires.replace(tzinfo=timezone.utc)
+    return expires > now
--- a/backend/app/crud/crud_registration.py
+++ b/backend/app/crud/crud_registration.py
@@ -0,0 +1,86 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.registration import Registration
+
+
+def _uuid(v: str | uuid.UUID) -> uuid.UUID:
+    return v if isinstance(v, uuid.UUID) else uuid.UUID(str(v))
+
+
+async def get(db: AsyncSession, registration_id: str | uuid.UUID) -> Registration | None:
+    result = await db.execute(
+        select(Registration).where(Registration.id == _uuid(registration_id))
+    )
+    return result.scalar_one_or_none()
+
+
+async def get_by_champ_and_user(
+    db: AsyncSession, championship_id: str | uuid.UUID, user_id: str | uuid.UUID
+) -> Registration | None:
+    result = await db.execute(
+        select(Registration).where(
+            Registration.championship_id == _uuid(championship_id),
+            Registration.user_id == _uuid(user_id),
+        )
+    )
+    return result.scalar_one_or_none()
+
+
+async def list_by_user(db: AsyncSession, user_id: str | uuid.UUID) -> list[Registration]:
+    result = await db.execute(
+        select(Registration)
+        .where(Registration.user_id == _uuid(user_id))
+        .order_by(Registration.submitted_at.desc())
+    )
+    return list(result.scalars().all())
+
+
+async def list_by_championship(
+    db: AsyncSession, championship_id: str | uuid.UUID
+) -> list[Registration]:
+    result = await db.execute(
+        select(Registration)
+        .where(Registration.championship_id == _uuid(championship_id))
+        .order_by(Registration.submitted_at.asc())
+    )
+    return list(result.scalars().all())
+
+
+async def create(
+    db: AsyncSession,
+    championship_id: uuid.UUID,
+    user_id: uuid.UUID,
+    category: str | None,
+    level: str | None,
+    notes: str | None,
+) -> Registration:
+    reg = Registration(
+        championship_id=championship_id,
+        user_id=user_id,
+        category=category,
+        level=level,
+        notes=notes,
+    )
+    db.add(reg)
+    await db.commit()
+    await db.refresh(reg)
+    return reg
+
+
+async def update_status(
+    db: AsyncSession, reg: Registration, status: str
+) -> Registration:
+    reg.status = status
+    reg.decided_at = datetime.now(timezone.utc)
+    await db.commit()
+    await db.refresh(reg)
+    return reg
+
+
+async def delete(db: AsyncSession, reg: Registration) -> None:
+    await db.delete(reg)
+    await db.commit()
--- a/backend/app/crud/crud_user.py
+++ b/backend/app/crud/crud_user.py
@@ -0,0 +1,72 @@
+import uuid
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.user import User
+from app.services.auth_service import hash_password
+
+
+async def get_by_email(db: AsyncSession, email: str) -> User | None:
+    result = await db.execute(select(User).where(User.email == email))
+    return result.scalar_one_or_none()
+
+
+async def get(db: AsyncSession, user_id: str | uuid.UUID) -> User | None:
+    uid = uuid.UUID(str(user_id)) if not isinstance(user_id, uuid.UUID) else user_id
+    result = await db.execute(select(User).where(User.id == uid))
+    return result.scalar_one_or_none()
+
+
+async def create(
+    db: AsyncSession,
+    email: str,
+    password: str,
+    full_name: str,
+    phone: str | None = None,
+    role: str = "member",
+    status: str = "pending",
+) -> User:
+    user = User(
+        email=email,
+        hashed_password=hash_password(password),
+        full_name=full_name,
+        phone=phone,
+        role=role,
+        status=status,
+    )
+    db.add(user)
+    await db.commit()
+    await db.refresh(user)
+    return user
+
+
+async def list_all(
+    db: AsyncSession,
+    status: str | None = None,
+    role: str | None = None,
+    skip: int = 0,
+    limit: int = 50,
+) -> list[User]:
+    q = select(User)
+    if status:
+        q = q.where(User.status == status)
+    if role:
+        q = q.where(User.role == role)
+    q = q.offset(skip).limit(limit)
+    result = await db.execute(q)
+    return list(result.scalars().all())
+
+
+async def set_status(db: AsyncSession, user: User, status: str) -> User:
+    user.status = status
+    await db.commit()
+    await db.refresh(user)
+    return user
+
+
+async def set_push_token(db: AsyncSession, user: User, token: str) -> User:
+    user.expo_push_token = token
+    await db.commit()
+    await db.refresh(user)
+    return user
--- a/backend/app/database.py
+++ b/backend/app/database.py
@@ -0,0 +1,47 @@
+from typing import AsyncGenerator
+
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+from sqlalchemy.orm import DeclarativeBase
+
+from app.config import settings
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+def _make_engine():
+    return create_async_engine(settings.database_url, echo=False)
+
+
+def _make_session_factory(engine):
+    return async_sessionmaker(engine, expire_on_commit=False)
+
+
+# Lazily initialised on first use so tests can patch settings before import
+_engine = None
+_session_factory = None
+
+
+def get_engine():
+    global _engine
+    if _engine is None:
+        _engine = _make_engine()
+    return _engine
+
+
+def get_session_factory():
+    global _session_factory
+    if _session_factory is None:
+        _session_factory = _make_session_factory(get_engine())
+    return _session_factory
+
+
+# Alias kept for Alembic and bot usage
+AsyncSessionLocal = None  # populated on first call to get_session_factory()
+
+
+async def get_db() -> AsyncGenerator[AsyncSession, None]:
+    factory = get_session_factory()
+    async with factory() as session:
+        yield session
--- a/backend/app/dependencies.py
+++ b/backend/app/dependencies.py
@@ -0,0 +1,53 @@
+import jwt
+from fastapi import Depends, HTTPException, status
+from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
+
+from app.crud import crud_user
+from app.database import AsyncSession, get_db
+from app.models.user import User
+from app.services.auth_service import decode_access_token
+
+bearer_scheme = HTTPBearer()
+
+
+async def get_current_user(
+    credentials: HTTPAuthorizationCredentials = Depends(bearer_scheme),
+    db: AsyncSession = Depends(get_db),
+) -> User:
+    try:
+        payload = decode_access_token(credentials.credentials)
+    except jwt.InvalidTokenError:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid or expired token"
+        )
+    user = await crud_user.get(db, payload["sub"])
+    if not user:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="User not found")
+    return user
+
+
+async def get_approved_user(user: User = Depends(get_current_user)) -> User:
+    if user.status != "approved":
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Account pending approval",
+        )
+    return user
+
+
+async def get_organizer(user: User = Depends(get_approved_user)) -> User:
+    if user.role not in ("organizer", "admin"):
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Organizer access required",
+        )
+    return user
+
+
+async def get_admin(user: User = Depends(get_approved_user)) -> User:
+    if user.role != "admin":
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Admin access required",
+        )
+    return user
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -0,0 +1,56 @@
+from contextlib import asynccontextmanager
+
+from apscheduler.schedulers.asyncio import AsyncIOScheduler
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.config import settings
+from app.routers import auth, championships, participant_lists, registrations, users
+from app.services.instagram_service import poll_instagram, refresh_instagram_token
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    scheduler = AsyncIOScheduler()
+    scheduler.add_job(
+        poll_instagram,
+        "interval",
+        seconds=settings.instagram_poll_interval,
+        id="instagram_poll",
+    )
+    scheduler.add_job(
+        refresh_instagram_token,
+        "interval",
+        weeks=1,
+        id="instagram_token_refresh",
+    )
+    scheduler.start()
+    yield
+    scheduler.shutdown()
+
+
+app = FastAPI(
+    title="Pole Dance Championships API",
+    version="1.0.0",
+    lifespan=lifespan,
+)
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],  # tighten in Phase 7
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+PREFIX = "/api/v1"
+app.include_router(auth.router, prefix=PREFIX)
+app.include_router(users.router, prefix=PREFIX)
+app.include_router(championships.router, prefix=PREFIX)
+app.include_router(registrations.router, prefix=PREFIX)
+app.include_router(participant_lists.router, prefix=PREFIX)
+
+
+@app.get("/internal/health", tags=["internal"])
+async def health():
+    return {"status": "ok"}
--- a/backend/app/models/init.py
+++ b/backend/app/models/init.py
@@ -0,0 +1,15 @@
+from app.models.user import User
+from app.models.refresh_token import RefreshToken
+from app.models.championship import Championship
+from app.models.registration import Registration
+from app.models.participant_list import ParticipantList
+from app.models.notification_log import NotificationLog
+
+__all__ = [
+    "User",
+    "RefreshToken",
+    "Championship",
+    "Registration",
+    "ParticipantList",
+    "NotificationLog",
+]
--- a/backend/app/models/championship.py
+++ b/backend/app/models/championship.py
@@ -0,0 +1,41 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import DateTime, String, Text
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+def _now() -> datetime:
+    return datetime.now(timezone.utc)
+
+
+class Championship(Base):
+    __tablename__ = "championships"
+
+    id: Mapped[uuid.UUID] = mapped_column(primary_key=True, default=uuid.uuid4)
+    title: Mapped[str] = mapped_column(String(500), nullable=False)
+    description: Mapped[str | None] = mapped_column(Text)
+    location: Mapped[str | None] = mapped_column(String(500))
+    event_date: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    registration_open_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    registration_close_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    status: Mapped[str] = mapped_column(String(30), nullable=False, default="draft")
+    # 'draft' | 'open' | 'closed' | 'completed'
+    source: Mapped[str] = mapped_column(String(20), nullable=False, default="manual")
+    # 'manual' | 'instagram'
+    instagram_media_id: Mapped[str | None] = mapped_column(String(100), unique=True)
+    image_url: Mapped[str | None] = mapped_column(String(1000))
+    raw_caption_text: Mapped[str | None] = mapped_column(Text)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=_now, onupdate=_now
+    )
+
+    registrations: Mapped[list["Registration"]] = relationship(
+        back_populates="championship", cascade="all, delete-orphan"
+    )
+    participant_list: Mapped["ParticipantList | None"] = relationship(
+        back_populates="championship", cascade="all, delete-orphan"
+    )
--- a/backend/app/models/notification_log.py
+++ b/backend/app/models/notification_log.py
@@ -0,0 +1,34 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import DateTime, ForeignKey, Index, String, Text
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+def _now() -> datetime:
+    return datetime.now(timezone.utc)
+
+
+class NotificationLog(Base):
+    __tablename__ = "notification_log"
+    __table_args__ = (Index("idx_notification_log_user_id", "user_id"),)
+
+    id: Mapped[uuid.UUID] = mapped_column(primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("users.id", ondelete="CASCADE"), nullable=False
+    )
+    registration_id: Mapped[uuid.UUID | None] = mapped_column(
+        ForeignKey("registrations.id", ondelete="SET NULL")
+    )
+    type: Mapped[str] = mapped_column(String(50), nullable=False)
+    title: Mapped[str] = mapped_column(String(255), nullable=False)
+    body: Mapped[str] = mapped_column(Text, nullable=False)
+    sent_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
+    delivery_status: Mapped[str] = mapped_column(String(30), default="pending")
+
+    user: Mapped["User"] = relationship(back_populates="notification_logs")
+    registration: Mapped["Registration | None"] = relationship(
+        back_populates="notification_logs"
+    )
--- a/backend/app/models/participant_list.py
+++ b/backend/app/models/participant_list.py
@@ -0,0 +1,33 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, Text
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+def _now() -> datetime:
+    return datetime.now(timezone.utc)
+
+
+class ParticipantList(Base):
+    __tablename__ = "participant_lists"
+
+    id: Mapped[uuid.UUID] = mapped_column(primary_key=True, default=uuid.uuid4)
+    championship_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("championships.id", ondelete="CASCADE"), unique=True, nullable=False
+    )
+    published_by: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("users.id"), nullable=False
+    )
+    is_published: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
+    published_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    notes: Mapped[str | None] = mapped_column(Text)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=_now, onupdate=_now
+    )
+
+    championship: Mapped["Championship"] = relationship(back_populates="participant_list")
+    organizer: Mapped["User"] = relationship()
--- a/backend/app/models/refresh_token.py
+++ b/backend/app/models/refresh_token.py
@@ -0,0 +1,27 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, Index, String
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+def _now() -> datetime:
+    return datetime.now(timezone.utc)
+
+
+class RefreshToken(Base):
+    __tablename__ = "refresh_tokens"
+    __table_args__ = (Index("idx_refresh_tokens_user_id", "user_id"),)
+
+    id: Mapped[uuid.UUID] = mapped_column(primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("users.id", ondelete="CASCADE"), nullable=False
+    )
+    token_hash: Mapped[str] = mapped_column(String(255), unique=True, nullable=False)
+    expires_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
+    revoked: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
+
+    user: Mapped["User"] = relationship(back_populates="refresh_tokens")
--- a/backend/app/models/registration.py
+++ b/backend/app/models/registration.py
@@ -0,0 +1,45 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import DateTime, ForeignKey, Index, String, Text, UniqueConstraint
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+def _now() -> datetime:
+    return datetime.now(timezone.utc)
+
+
+class Registration(Base):
+    __tablename__ = "registrations"
+    __table_args__ = (
+        UniqueConstraint("championship_id", "user_id", name="uq_registration_champ_user"),
+        Index("idx_registrations_championship_id", "championship_id"),
+        Index("idx_registrations_user_id", "user_id"),
+    )
+
+    id: Mapped[uuid.UUID] = mapped_column(primary_key=True, default=uuid.uuid4)
+    championship_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("championships.id", ondelete="CASCADE"), nullable=False
+    )
+    user_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("users.id", ondelete="CASCADE"), nullable=False
+    )
+    category: Mapped[str | None] = mapped_column(String(255))
+    level: Mapped[str | None] = mapped_column(String(255))
+    notes: Mapped[str | None] = mapped_column(Text)
+    status: Mapped[str] = mapped_column(String(20), nullable=False, default="submitted")
+    # 'submitted' | 'accepted' | 'rejected' | 'waitlisted'
+    submitted_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
+    decided_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=_now, onupdate=_now
+    )
+
+    championship: Mapped["Championship"] = relationship(back_populates="registrations")
+    user: Mapped["User"] = relationship(back_populates="registrations")
+    notification_logs: Mapped[list["NotificationLog"]] = relationship(
+        back_populates="registration"
+    )
--- a/backend/app/models/user.py
+++ b/backend/app/models/user.py
@@ -0,0 +1,40 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import DateTime, String
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+def _now() -> datetime:
+    return datetime.now(timezone.utc)
+
+
+class User(Base):
+    __tablename__ = "users"
+
+    id: Mapped[uuid.UUID] = mapped_column(primary_key=True, default=uuid.uuid4)
+    email: Mapped[str] = mapped_column(String(255), unique=True, nullable=False)
+    hashed_password: Mapped[str] = mapped_column(String(255), nullable=False)
+    full_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    phone: Mapped[str | None] = mapped_column(String(50))
+    role: Mapped[str] = mapped_column(String(20), nullable=False, default="member")
+    # 'member' | 'organizer' | 'admin'
+    status: Mapped[str] = mapped_column(String(20), nullable=False, default="pending")
+    # 'pending' | 'approved' | 'rejected'
+    expo_push_token: Mapped[str | None] = mapped_column(String(512))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=_now, onupdate=_now
+    )
+
+    refresh_tokens: Mapped[list["RefreshToken"]] = relationship(
+        back_populates="user", cascade="all, delete-orphan"
+    )
+    registrations: Mapped[list["Registration"]] = relationship(
+        back_populates="user", cascade="all, delete-orphan"
+    )
+    notification_logs: Mapped[list["NotificationLog"]] = relationship(
+        back_populates="user", cascade="all, delete-orphan"
+    )
--- a/backend/app/routers/init.py
+++ b/backend/app/routers/init.py
--- a/backend/app/routers/auth.py
+++ b/backend/app/routers/auth.py
@@ -0,0 +1,77 @@
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.crud import crud_refresh_token, crud_user
+from app.database import get_db
+from app.dependencies import get_current_user
+from app.models.user import User
+from app.schemas.auth import LoginRequest, RefreshRequest, RegisterRequest, TokenResponse, UserOut
+from app.services.auth_service import (
+    create_access_token,
+    create_refresh_token,
+    hash_token,
+    verify_password,
+)
+
+router = APIRouter(prefix="/auth", tags=["auth"])
+
+
+@router.post("/register", response_model=TokenResponse, status_code=status.HTTP_201_CREATED)
+async def register(body: RegisterRequest, db: AsyncSession = Depends(get_db)):
+    if await crud_user.get_by_email(db, body.email):
+        raise HTTPException(
+            status_code=status.HTTP_409_CONFLICT, detail="Email already registered"
+        )
+    user = await crud_user.create(
+        db,
+        email=body.email,
+        password=body.password,
+        full_name=body.full_name,
+        phone=body.phone,
+    )
+    return await _issue_tokens(db, user)
+
+
+@router.post("/login", response_model=TokenResponse)
+async def login(body: LoginRequest, db: AsyncSession = Depends(get_db)):
+    user = await crud_user.get_by_email(db, body.email)
+    if not user or not verify_password(body.password, user.hashed_password):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid credentials"
+        )
+    return await _issue_tokens(db, user)
+
+
+@router.post("/refresh", response_model=TokenResponse)
+async def refresh(body: RefreshRequest, db: AsyncSession = Depends(get_db)):
+    hashed = hash_token(body.refresh_token)
+    rt = await crud_refresh_token.get_by_hash(db, hashed)
+    if not rt or not crud_refresh_token.is_valid(rt):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid or expired refresh token"
+        )
+    await crud_refresh_token.revoke(db, rt)
+    user = await crud_user.get(db, rt.user_id)
+    if not user:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED)
+    return await _issue_tokens(db, user)
+
+
+@router.post("/logout", status_code=status.HTTP_204_NO_CONTENT)
+async def logout(body: RefreshRequest, db: AsyncSession = Depends(get_db)):
+    hashed = hash_token(body.refresh_token)
+    rt = await crud_refresh_token.get_by_hash(db, hashed)
+    if rt:
+        await crud_refresh_token.revoke(db, rt)
+
+
+@router.get("/me", response_model=UserOut)
+async def me(user: User = Depends(get_current_user)):
+    return user
+
+
+async def _issue_tokens(db: AsyncSession, user: User) -> TokenResponse:
+    access = create_access_token(str(user.id), user.role, user.status)
+    raw_rt, hashed_rt, expires_at = create_refresh_token()
+    await crud_refresh_token.create(db, user.id, hashed_rt, expires_at)
+    return TokenResponse(access_token=access, refresh_token=raw_rt)
--- a/backend/app/routers/championships.py
+++ b/backend/app/routers/championships.py
@@ -0,0 +1,70 @@
+import uuid
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.crud import crud_championship
+from app.database import get_db
+from app.dependencies import get_admin, get_approved_user, get_organizer
+from app.models.user import User
+from app.schemas.championship import ChampionshipCreate, ChampionshipOut, ChampionshipUpdate
+
+router = APIRouter(prefix="/championships", tags=["championships"])
+
+
+@router.get("", response_model=list[ChampionshipOut])
+async def list_championships(
+    status: str | None = None,
+    skip: int = 0,
+    limit: int = 20,
+    _user: User = Depends(get_approved_user),
+    db: AsyncSession = Depends(get_db),
+):
+    return await crud_championship.list_all(db, status=status, skip=skip, limit=limit)
+
+
+@router.get("/{championship_id}", response_model=ChampionshipOut)
+async def get_championship(
+    championship_id: str,
+    _user: User = Depends(get_approved_user),
+    db: AsyncSession = Depends(get_db),
+):
+    champ = await crud_championship.get(db, championship_id)
+    if not champ:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    return champ
+
+
+@router.post("", response_model=ChampionshipOut, status_code=status.HTTP_201_CREATED)
+async def create_championship(
+    body: ChampionshipCreate,
+    _organizer: User = Depends(get_organizer),
+    db: AsyncSession = Depends(get_db),
+):
+    return await crud_championship.create(db, **body.model_dump(), source="manual")
+
+
+@router.patch("/{championship_id}", response_model=ChampionshipOut)
+async def update_championship(
+    championship_id: str,
+    body: ChampionshipUpdate,
+    _organizer: User = Depends(get_organizer),
+    db: AsyncSession = Depends(get_db),
+):
+    champ = await crud_championship.get(db, championship_id)
+    if not champ:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    updates = {k: v for k, v in body.model_dump().items() if v is not None}
+    return await crud_championship.update(db, champ, **updates)
+
+
+@router.delete("/{championship_id}", status_code=status.HTTP_204_NO_CONTENT)
+async def delete_championship(
+    championship_id: str,
+    _admin: User = Depends(get_admin),
+    db: AsyncSession = Depends(get_db),
+):
+    champ = await crud_championship.get(db, championship_id)
+    if not champ:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    await crud_championship.delete(db, champ)
--- a/backend/app/routers/participant_lists.py
+++ b/backend/app/routers/participant_lists.py
@@ -0,0 +1,75 @@
+import uuid
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.crud import crud_championship, crud_participant
+from app.database import get_db
+from app.dependencies import get_approved_user, get_organizer
+from app.models.user import User
+from app.schemas.participant_list import ParticipantListOut, ParticipantListUpsert
+from app.services import participant_service
+
+router = APIRouter(prefix="/championships", tags=["participant-lists"])
+
+
+@router.get("/{championship_id}/participant-list", response_model=ParticipantListOut)
+async def get_participant_list(
+    championship_id: str,
+    _user: User = Depends(get_approved_user),
+    db: AsyncSession = Depends(get_db),
+):
+    pl = await crud_participant.get_by_championship(db, championship_id)
+    if not pl or not pl.is_published:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Participant list not published yet",
+        )
+    return pl
+
+
+@router.put("/{championship_id}/participant-list", response_model=ParticipantListOut)
+async def upsert_participant_list(
+    championship_id: str,
+    body: ParticipantListUpsert,
+    organizer: User = Depends(get_organizer),
+    db: AsyncSession = Depends(get_db),
+):
+    champ = await crud_championship.get(db, championship_id)
+    if not champ:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    return await crud_participant.upsert(
+        db,
+        championship_id=uuid.UUID(championship_id),
+        published_by=organizer.id,
+        notes=body.notes,
+    )
+
+
+@router.post("/{championship_id}/participant-list/publish", response_model=ParticipantListOut)
+async def publish_participant_list(
+    championship_id: str,
+    organizer: User = Depends(get_organizer),
+    db: AsyncSession = Depends(get_db),
+):
+    champ = await crud_championship.get(db, championship_id)
+    if not champ:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    try:
+        return await participant_service.publish_participant_list(
+            db, uuid.UUID(championship_id), organizer
+        )
+    except ValueError as e:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(e))
+
+
+@router.post("/{championship_id}/participant-list/unpublish", response_model=ParticipantListOut)
+async def unpublish_participant_list(
+    championship_id: str,
+    _organizer: User = Depends(get_organizer),
+    db: AsyncSession = Depends(get_db),
+):
+    pl = await crud_participant.get_by_championship(db, championship_id)
+    if not pl:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    return await crud_participant.unpublish(db, pl)
--- a/backend/app/routers/registrations.py
+++ b/backend/app/routers/registrations.py
@@ -0,0 +1,123 @@
+import uuid
+from datetime import datetime, timezone
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.crud import crud_championship, crud_registration
+from app.database import get_db
+from app.dependencies import get_approved_user, get_organizer
+from app.models.user import User
+from app.schemas.registration import RegistrationCreate, RegistrationOut, RegistrationStatusUpdate
+
+router = APIRouter(prefix="/registrations", tags=["registrations"])
+
+
+@router.post("", response_model=RegistrationOut, status_code=status.HTTP_201_CREATED)
+async def submit_registration(
+    body: RegistrationCreate,
+    current_user: User = Depends(get_approved_user),
+    db: AsyncSession = Depends(get_db),
+):
+    champ = await crud_championship.get(db, body.championship_id)
+    if not champ:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Championship not found")
+    if champ.status != "open":
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, detail="Registration is not open"
+        )
+    if champ.registration_close_at and champ.registration_close_at < datetime.now(timezone.utc):
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, detail="Registration deadline has passed"
+        )
+    existing = await crud_registration.get_by_champ_and_user(
+        db, body.championship_id, current_user.id
+    )
+    if existing:
+        raise HTTPException(
+            status_code=status.HTTP_409_CONFLICT,
+            detail="You have already registered for this championship",
+        )
+    return await crud_registration.create(
+        db,
+        championship_id=uuid.UUID(body.championship_id),
+        user_id=current_user.id,
+        category=body.category,
+        level=body.level,
+        notes=body.notes,
+    )
+
+
+@router.get("/my", response_model=list[RegistrationOut])
+async def my_registrations(
+    current_user: User = Depends(get_approved_user),
+    db: AsyncSession = Depends(get_db),
+):
+    return await crud_registration.list_by_user(db, current_user.id)
+
+
+@router.get("/{registration_id}", response_model=RegistrationOut)
+async def get_registration(
+    registration_id: str,
+    current_user: User = Depends(get_approved_user),
+    db: AsyncSession = Depends(get_db),
+):
+    reg = await crud_registration.get(db, registration_id)
+    if not reg:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    if str(reg.user_id) != str(current_user.id) and current_user.role not in (
+        "organizer",
+        "admin",
+    ):
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN)
+    return reg
+
+
+@router.get("/championship/{championship_id}", response_model=list[RegistrationOut])
+async def championship_registrations(
+    championship_id: str,
+    _organizer: User = Depends(get_organizer),
+    db: AsyncSession = Depends(get_db),
+):
+    champ = await crud_championship.get(db, championship_id)
+    if not champ:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    return await crud_registration.list_by_championship(db, championship_id)
+
+
+@router.patch("/{registration_id}/status", response_model=RegistrationOut)
+async def update_registration_status(
+    registration_id: str,
+    body: RegistrationStatusUpdate,
+    _organizer: User = Depends(get_organizer),
+    db: AsyncSession = Depends(get_db),
+):
+    allowed = {"accepted", "rejected", "waitlisted"}
+    if body.status not in allowed:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=f"Status must be one of: {', '.join(allowed)}",
+        )
+    reg = await crud_registration.get(db, registration_id)
+    if not reg:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    return await crud_registration.update_status(db, reg, body.status)
+
+
+@router.delete("/{registration_id}", status_code=status.HTTP_204_NO_CONTENT)
+async def withdraw_registration(
+    registration_id: str,
+    current_user: User = Depends(get_approved_user),
+    db: AsyncSession = Depends(get_db),
+):
+    reg = await crud_registration.get(db, registration_id)
+    if not reg:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    if str(reg.user_id) != str(current_user.id):
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN)
+    if reg.status != "submitted":
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Only submitted registrations can be withdrawn",
+        )
+    await crud_registration.delete(db, reg)
--- a/backend/app/routers/users.py
+++ b/backend/app/routers/users.py
@@ -0,0 +1,101 @@
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.crud import crud_user
+from app.database import get_db
+from app.dependencies import get_admin, get_current_user
+from app.models.user import User
+from app.schemas.user import PushTokenUpdate, UserCreate, UserOut
+from app.services import notification_service
+
+router = APIRouter(prefix="/users", tags=["users"])
+
+
+@router.get("", response_model=list[UserOut])
+async def list_users(
+    status: str | None = None,
+    role: str | None = None,
+    skip: int = 0,
+    limit: int = 50,
+    _admin: User = Depends(get_admin),
+    db: AsyncSession = Depends(get_db),
+):
+    return await crud_user.list_all(db, status=status, role=role, skip=skip, limit=limit)
+
+
+@router.get("/{user_id}", response_model=UserOut)
+async def get_user(
+    user_id: str,
+    _admin: User = Depends(get_admin),
+    db: AsyncSession = Depends(get_db),
+):
+    user = await crud_user.get(db, user_id)
+    if not user:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    return user
+
+
+@router.post("", response_model=UserOut, status_code=status.HTTP_201_CREATED)
+async def create_user(
+    body: UserCreate,
+    _admin: User = Depends(get_admin),
+    db: AsyncSession = Depends(get_db),
+):
+    if await crud_user.get_by_email(db, body.email):
+        raise HTTPException(status_code=status.HTTP_409_CONFLICT, detail="Email already registered")
+    return await crud_user.create(
+        db,
+        email=body.email,
+        password=body.password,
+        full_name=body.full_name,
+        phone=body.phone,
+        role=body.role,
+        status="approved",
+    )
+
+
+@router.patch("/{user_id}/approve", response_model=UserOut)
+async def approve_user(
+    user_id: str,
+    admin: User = Depends(get_admin),
+    db: AsyncSession = Depends(get_db),
+):
+    user = await crud_user.get(db, user_id)
+    if not user:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    user = await crud_user.set_status(db, user, "approved")
+    await notification_service.send_push_notification(
+        db=db,
+        user=user,
+        title="Welcome!",
+        body="Your account has been approved. You can now access the app.",
+        notif_type="account_approved",
+    )
+    return user
+
+
+@router.patch("/{user_id}/reject", response_model=UserOut)
+async def reject_user(
+    user_id: str,
+    _admin: User = Depends(get_admin),
+    db: AsyncSession = Depends(get_db),
+):
+    user = await crud_user.get(db, user_id)
+    if not user:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    return await crud_user.set_status(db, user, "rejected")
+
+
+@router.patch("/{user_id}/push-token", status_code=status.HTTP_204_NO_CONTENT)
+async def update_push_token(
+    user_id: str,
+    body: PushTokenUpdate,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    if str(current_user.id) != user_id and current_user.role != "admin":
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN)
+    user = await crud_user.get(db, user_id)
+    if not user:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+    await crud_user.set_push_token(db, user, body.expo_push_token)
--- a/backend/app/schemas/init.py
+++ b/backend/app/schemas/init.py
--- a/backend/app/schemas/auth.py
+++ b/backend/app/schemas/auth.py
@@ -0,0 +1,36 @@
+import uuid
+
+from pydantic import BaseModel, EmailStr
+
+
+class RegisterRequest(BaseModel):
+    email: EmailStr
+    password: str
+    full_name: str
+    phone: str | None = None
+
+
+class LoginRequest(BaseModel):
+    email: EmailStr
+    password: str
+
+
+class TokenResponse(BaseModel):
+    access_token: str
+    refresh_token: str
+    token_type: str = "bearer"
+
+
+class RefreshRequest(BaseModel):
+    refresh_token: str
+
+
+class UserOut(BaseModel):
+    id: uuid.UUID
+    email: str
+    full_name: str
+    phone: str | None
+    role: str
+    status: str
+
+    model_config = {"from_attributes": True}
--- a/backend/app/schemas/championship.py
+++ b/backend/app/schemas/championship.py
@@ -0,0 +1,43 @@
+import uuid
+from datetime import datetime
+
+from pydantic import BaseModel
+
+
+class ChampionshipCreate(BaseModel):
+    title: str
+    description: str | None = None
+    location: str | None = None
+    event_date: datetime | None = None
+    registration_open_at: datetime | None = None
+    registration_close_at: datetime | None = None
+    status: str = "draft"
+    image_url: str | None = None
+
+
+class ChampionshipUpdate(BaseModel):
+    title: str | None = None
+    description: str | None = None
+    location: str | None = None
+    event_date: datetime | None = None
+    registration_open_at: datetime | None = None
+    registration_close_at: datetime | None = None
+    status: str | None = None
+    image_url: str | None = None
+
+
+class ChampionshipOut(BaseModel):
+    id: uuid.UUID
+    title: str
+    description: str | None
+    location: str | None
+    event_date: datetime | None
+    registration_open_at: datetime | None
+    registration_close_at: datetime | None
+    status: str
+    source: str
+    image_url: str | None
+    created_at: datetime
+    updated_at: datetime
+
+    model_config = {"from_attributes": True}
--- a/backend/app/schemas/participant_list.py
+++ b/backend/app/schemas/participant_list.py
@@ -0,0 +1,19 @@
+import uuid
+from datetime import datetime
+
+from pydantic import BaseModel
+
+
+class ParticipantListUpsert(BaseModel):
+    notes: str | None = None
+
+
+class ParticipantListOut(BaseModel):
+    id: uuid.UUID
+    championship_id: uuid.UUID
+    published_by: uuid.UUID
+    is_published: bool
+    published_at: datetime | None
+    notes: str | None
+
+    model_config = {"from_attributes": True}
--- a/backend/app/schemas/registration.py
+++ b/backend/app/schemas/registration.py
@@ -0,0 +1,29 @@
+import uuid
+from datetime import datetime
+
+from pydantic import BaseModel
+
+
+class RegistrationCreate(BaseModel):
+    championship_id: uuid.UUID
+    category: str | None = None
+    level: str | None = None
+    notes: str | None = None
+
+
+class RegistrationStatusUpdate(BaseModel):
+    status: str  # 'accepted' | 'rejected' | 'waitlisted'
+
+
+class RegistrationOut(BaseModel):
+    id: uuid.UUID
+    championship_id: uuid.UUID
+    user_id: uuid.UUID
+    category: str | None
+    level: str | None
+    notes: str | None
+    status: str
+    submitted_at: datetime
+    decided_at: datetime | None
+
+    model_config = {"from_attributes": True}
--- a/backend/app/schemas/user.py
+++ b/backend/app/schemas/user.py
@@ -0,0 +1,26 @@
+import uuid
+
+from pydantic import BaseModel, EmailStr
+
+
+class UserCreate(BaseModel):
+    email: EmailStr
+    password: str
+    full_name: str
+    phone: str | None = None
+    role: str = "member"
+
+
+class UserOut(BaseModel):
+    id: uuid.UUID
+    email: str
+    full_name: str
+    phone: str | None
+    role: str
+    status: str
+
+    model_config = {"from_attributes": True}
+
+
+class PushTokenUpdate(BaseModel):
+    expo_push_token: str
--- a/backend/app/services/init.py
+++ b/backend/app/services/init.py
--- a/backend/app/services/auth_service.py
+++ b/backend/app/services/auth_service.py
@@ -0,0 +1,54 @@
+import hashlib
+import uuid
+from datetime import datetime, timedelta, timezone
+
+import jwt
+from passlib.context import CryptContext
+
+from app.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+
+def hash_password(password: str) -> str:
+    return pwd_context.hash(password)
+
+
+def verify_password(plain: str, hashed: str) -> bool:
+    return pwd_context.verify(plain, hashed)
+
+
+def create_access_token(user_id: str, role: str, status: str) -> str:
+    expire = datetime.now(timezone.utc) + timedelta(
+        minutes=settings.access_token_expire_minutes
+    )
+    payload = {
+        "sub": user_id,
+        "role": role,
+        "status": status,
+        "exp": expire,
+        "type": "access",
+    }
+    return jwt.encode(payload, settings.secret_key, algorithm=settings.algorithm)
+
+
+def create_refresh_token() -> tuple[str, str, datetime]:
+    """Returns (raw_token, hashed_token, expires_at)."""
+    raw = str(uuid.uuid4())
+    hashed = hashlib.sha256(raw.encode()).hexdigest()
+    expires_at = datetime.now(timezone.utc) + timedelta(
+        days=settings.refresh_token_expire_days
+    )
+    return raw, hashed, expires_at
+
+
+def decode_access_token(token: str) -> dict:
+    """Raises jwt.InvalidTokenError on failure."""
+    payload = jwt.decode(token, settings.secret_key, algorithms=[settings.algorithm])
+    if payload.get("type") != "access":
+        raise jwt.InvalidTokenError("Not an access token")
+    return payload
+
+
+def hash_token(raw: str) -> str:
+    return hashlib.sha256(raw.encode()).hexdigest()
--- a/backend/app/services/instagram_service.py
+++ b/backend/app/services/instagram_service.py
@@ -0,0 +1,226 @@
+"""
+Instagram Graph API polling service.
+
+Setup requirements:
+1. Convert organizer's Instagram to Business/Creator account and link to a Facebook Page.
+2. Create a Facebook App at developers.facebook.com.
+3. Add Instagram Graph API product with permissions: instagram_basic, pages_read_engagement.
+4. Generate a long-lived User Access Token (valid 60 days) and set INSTAGRAM_ACCESS_TOKEN in .env.
+5. Find your Instagram numeric user ID and set INSTAGRAM_USER_ID in .env.
+
+The scheduler runs every INSTAGRAM_POLL_INTERVAL seconds (default: 1800 = 30 min).
+Token is refreshed weekly to prevent expiry.
+"""
+import logging
+import re
+from dataclasses import dataclass
+from datetime import datetime, timezone
+from typing import Optional
+
+import httpx
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.config import settings
+from app.database import get_session_factory
+from app.models.championship import Championship
+
+logger = logging.getLogger(__name__)
+
+GRAPH_BASE = "https://graph.facebook.com/v21.0"
+
+# Russian month names → month number
+RU_MONTHS = {
+    "января": 1, "февраля": 2, "марта": 3, "апреля": 4,
+    "мая": 5, "июня": 6, "июля": 7, "августа": 8,
+    "сентября": 9, "октября": 10, "ноября": 11, "декабря": 12,
+}
+
+LOCATION_PREFIXES = ["место:", "адрес:", "location:", "venue:", "зал:", "address:"]
+
+DATE_PATTERNS = [
+    # 15 марта 2025
+    (
+        r"\b(\d{1,2})\s+("
+        + "|".join(RU_MONTHS.keys())
+        + r")\s+(\d{4})\b",
+        "ru",
+    ),
+    # 15.03.2025
+    (r"\b(\d{1,2})\.(\d{2})\.(\d{4})\b", "dot"),
+    # March 15 2025 or March 15, 2025
+    (
+        r"\b(January|February|March|April|May|June|July|August|September|October|November|December)"
+        r"\s+(\d{1,2}),?\s+(\d{4})\b",
+        "en",
+    ),
+]
+
+EN_MONTHS = {
+    "january": 1, "february": 2, "march": 3, "april": 4,
+    "may": 5, "june": 6, "july": 7, "august": 8,
+    "september": 9, "october": 10, "november": 11, "december": 12,
+}
+
+
+@dataclass
+class ParsedChampionship:
+    title: str
+    description: Optional[str]
+    location: Optional[str]
+    event_date: Optional[datetime]
+    raw_caption_text: str
+    image_url: Optional[str]
+
+
+def parse_caption(text: str, image_url: str | None = None) -> ParsedChampionship:
+    lines = [line.strip() for line in text.strip().splitlines() if line.strip()]
+    title = lines[0] if lines else "Untitled Championship"
+    description = "\n".join(lines[1:]) if len(lines) > 1 else None
+
+    location = None
+    for line in lines:
+        lower = line.lower()
+        for prefix in LOCATION_PREFIXES:
+            if lower.startswith(prefix):
+                location = line[len(prefix):].strip()
+                break
+
+    event_date = _extract_date(text)
+
+    return ParsedChampionship(
+        title=title,
+        description=description,
+        location=location,
+        event_date=event_date,
+        raw_caption_text=text,
+        image_url=image_url,
+    )
+
+
+def _extract_date(text: str) -> Optional[datetime]:
+    for pattern, fmt in DATE_PATTERNS:
+        m = re.search(pattern, text, re.IGNORECASE)
+        if not m:
+            continue
+        try:
+            if fmt == "ru":
+                day, month_name, year = int(m.group(1)), m.group(2).lower(), int(m.group(3))
+                month = RU_MONTHS.get(month_name)
+                if month:
+                    return datetime(year, month, day, tzinfo=timezone.utc)
+            elif fmt == "dot":
+                day, month, year = int(m.group(1)), int(m.group(2)), int(m.group(3))
+                return datetime(year, month, day, tzinfo=timezone.utc)
+            elif fmt == "en":
+                month_name, day, year = m.group(1).lower(), int(m.group(2)), int(m.group(3))
+                month = EN_MONTHS.get(month_name)
+                if month:
+                    return datetime(year, month, day, tzinfo=timezone.utc)
+        except ValueError:
+            continue
+    return None
+
+
+async def _upsert_championship(
+    session: AsyncSession,
+    instagram_media_id: str,
+    parsed: ParsedChampionship,
+) -> Championship:
+    result = await session.execute(
+        select(Championship).where(
+            Championship.instagram_media_id == instagram_media_id
+        )
+    )
+    champ = result.scalar_one_or_none()
+
+    if champ:
+        champ.title = parsed.title
+        champ.description = parsed.description
+        champ.location = parsed.location
+        champ.event_date = parsed.event_date
+        champ.raw_caption_text = parsed.raw_caption_text
+        champ.image_url = parsed.image_url
+    else:
+        champ = Championship(
+            title=parsed.title,
+            description=parsed.description,
+            location=parsed.location,
+            event_date=parsed.event_date,
+            status="draft",
+            source="instagram",
+            instagram_media_id=instagram_media_id,
+            raw_caption_text=parsed.raw_caption_text,
+            image_url=parsed.image_url,
+        )
+        session.add(champ)
+
+    await session.commit()
+    return champ
+
+
+async def poll_instagram() -> None:
+    """Fetch recent posts from the monitored Instagram account and sync championships."""
+    if not settings.instagram_user_id or not settings.instagram_access_token:
+        logger.warning("Instagram credentials not configured — skipping poll")
+        return
+
+    url = (
+        f"{GRAPH_BASE}/{settings.instagram_user_id}/media"
+        f"?fields=id,caption,media_url,timestamp"
+        f"&access_token={settings.instagram_access_token}"
+    )
+
+    try:
+        async with httpx.AsyncClient(timeout=15.0) as client:
+            response = await client.get(url)
+            response.raise_for_status()
+            data = response.json()
+    except Exception as exc:
+        logger.error("Instagram API request failed: %s", exc)
+        return
+
+    posts = data.get("data", [])
+    logger.info("Instagram poll: fetched %d posts", len(posts))
+
+    async with get_session_factory()() as session:
+        for post in posts:
+            media_id = post.get("id")
+            caption = post.get("caption", "")
+            image_url = post.get("media_url")
+
+            if not caption:
+                continue
+
+            try:
+                parsed = parse_caption(caption, image_url)
+                await _upsert_championship(session, media_id, parsed)
+                logger.info("Synced championship from Instagram post %s: %s", media_id, parsed.title)
+            except Exception as exc:
+                logger.error("Failed to sync Instagram post %s: %s", media_id, exc)
+
+
+async def refresh_instagram_token() -> None:
+    """Refresh the long-lived Instagram token before it expires (run weekly)."""
+    if not settings.instagram_access_token:
+        return
+
+    url = (
+        f"{GRAPH_BASE}/oauth/access_token"
+        f"?grant_type=ig_refresh_token"
+        f"&access_token={settings.instagram_access_token}"
+    )
+    try:
+        async with httpx.AsyncClient(timeout=10.0) as client:
+            response = await client.get(url)
+            response.raise_for_status()
+            new_token = response.json().get("access_token")
+            if new_token:
+                # In a production setup, persist the new token to the DB or secrets manager.
+                # For now, log it so it can be manually updated in .env.
+                logger.warning(
+                    "Instagram token refreshed. Update INSTAGRAM_ACCESS_TOKEN in .env:\n%s",
+                    new_token,
+                )
+    except Exception as exc:
+        logger.error("Failed to refresh Instagram token: %s", exc)
--- a/backend/app/services/notification_service.py
+++ b/backend/app/services/notification_service.py
@@ -0,0 +1,44 @@
+import httpx
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.notification_log import NotificationLog
+from app.models.user import User
+
+EXPO_PUSH_URL = "https://exp.host/--/api/v2/push/send"
+
+
+async def send_push_notification(
+    db: AsyncSession,
+    user: User,
+    title: str,
+    body: str,
+    notif_type: str,
+    registration_id: str | None = None,
+) -> None:
+    delivery_status = "skipped"
+
+    if user.expo_push_token:
+        payload = {
+            "to": user.expo_push_token,
+            "title": title,
+            "body": body,
+            "data": {"type": notif_type, "registration_id": registration_id},
+            "sound": "default",
+        }
+        try:
+            async with httpx.AsyncClient(timeout=10.0) as client:
+                response = await client.post(EXPO_PUSH_URL, json=payload)
+            delivery_status = "sent" if response.status_code == 200 else "failed"
+        except Exception:
+            delivery_status = "failed"
+
+    log = NotificationLog(
+        user_id=user.id,
+        registration_id=registration_id,
+        type=notif_type,
+        title=title,
+        body=body,
+        delivery_status=delivery_status,
+    )
+    db.add(log)
+    await db.commit()
--- a/backend/app/services/participant_service.py
+++ b/backend/app/services/participant_service.py
@@ -0,0 +1,49 @@
+import uuid
+
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.crud import crud_championship, crud_participant, crud_registration, crud_user
+from app.models.participant_list import ParticipantList
+from app.models.user import User
+from app.services import notification_service
+
+
+async def publish_participant_list(
+    db: AsyncSession,
+    championship_id: uuid.UUID,
+    organizer: User,
+) -> ParticipantList:
+    pl = await crud_participant.get_by_championship(db, championship_id)
+    if not pl:
+        raise ValueError("Participant list not found — create it first")
+
+    pl = await crud_participant.publish(db, pl)
+
+    championship = await crud_championship.get(db, championship_id)
+    registrations = await crud_registration.list_by_championship(db, championship_id)
+
+    for reg in registrations:
+        user = await crud_user.get(db, reg.user_id)
+        if not user:
+            continue
+
+        if reg.status == "accepted":
+            title = "Congratulations!"
+            body = f"You've been accepted to {championship.title}!"
+        elif reg.status == "rejected":
+            title = "Application Update"
+            body = f"Unfortunately, your application to {championship.title} was not accepted this time."
+        else:
+            title = "Application Update"
+            body = f"You are on the waitlist for {championship.title}."
+
+        await notification_service.send_push_notification(
+            db=db,
+            user=user,
+            title=title,
+            body=body,
+            notif_type=reg.status,
+            registration_id=str(reg.id),
+        )
+
+    return pl
--- a/backend/pytest.ini
+++ b/backend/pytest.ini
@@ -0,0 +1,2 @@
+[pytest]
+asyncio_mode = auto
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -0,0 +1,18 @@
+fastapi==0.115.6
+uvicorn[standard]==0.32.1
+sqlalchemy==2.0.36
+asyncpg==0.30.0
+alembic==1.14.0
+pydantic-settings==2.7.0
+pydantic[email]==2.10.3
+passlib[bcrypt]==1.7.4
+bcrypt==4.0.1
+PyJWT==2.10.1
+python-multipart==0.0.20
+httpx==0.28.1
+apscheduler==3.11.0
+slowapi==0.1.9
+pytest==8.3.4
+pytest-asyncio==0.25.2
+pytest-httpx==0.35.0
+aiosqlite==0.20.0
--- a/backend/tests/init.py
+++ b/backend/tests/init.py
--- a/backend/tests/conftest.py
+++ b/backend/tests/conftest.py
@@ -0,0 +1,55 @@
+import asyncio
+import os
+
+# Override DATABASE_URL before any app code is imported so the lazy engine
+# initialises with SQLite (no asyncpg required in the test environment).
+os.environ["DATABASE_URL"] = "sqlite+aiosqlite:///:memory:"
+
+import pytest
+import pytest_asyncio
+from httpx import AsyncClient, ASGITransport
+from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker
+
+from app.database import Base, get_db
+from app.main import app
+
+TEST_DATABASE_URL = "sqlite+aiosqlite:///:memory:"
+
+
+@pytest.fixture(scope="session")
+def event_loop():
+    loop = asyncio.new_event_loop()
+    yield loop
+    loop.close()
+
+
+@pytest_asyncio.fixture(scope="session")
+async def db_engine():
+    engine = create_async_engine(TEST_DATABASE_URL, echo=False)
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+    yield engine
+    await engine.dispose()
+
+
+@pytest_asyncio.fixture
+async def db_session(db_engine):
+    factory = async_sessionmaker(db_engine, expire_on_commit=False)
+    async with factory() as session:
+        yield session
+        await session.rollback()
+
+
+@pytest_asyncio.fixture
+async def client(db_session):
+    async def override_get_db():
+        yield db_session
+
+    app.dependency_overrides[get_db] = override_get_db
+
+    async with AsyncClient(
+        transport=ASGITransport(app=app), base_url="http://test"
+    ) as ac:
+        yield ac
+
+    app.dependency_overrides.clear()
--- a/backend/tests/test_auth.py
+++ b/backend/tests/test_auth.py
@@ -0,0 +1,89 @@
+import pytest
+
+
+@pytest.mark.asyncio
+async def test_register_and_login(client):
+    # Register
+    res = await client.post(
+        "/api/v1/auth/register",
+        json={
+            "email": "test@example.com",
+            "password": "secret123",
+            "full_name": "Test User",
+        },
+    )
+    assert res.status_code == 201
+    tokens = res.json()
+    assert "access_token" in tokens
+    assert "refresh_token" in tokens
+
+    # Duplicate registration should fail
+    res2 = await client.post(
+        "/api/v1/auth/register",
+        json={
+            "email": "test@example.com",
+            "password": "secret123",
+            "full_name": "Test User",
+        },
+    )
+    assert res2.status_code == 409
+
+    # Login with correct credentials
+    res3 = await client.post(
+        "/api/v1/auth/login",
+        json={"email": "test@example.com", "password": "secret123"},
+    )
+    assert res3.status_code == 200
+
+    # Login with wrong password
+    res4 = await client.post(
+        "/api/v1/auth/login",
+        json={"email": "test@example.com", "password": "wrong"},
+    )
+    assert res4.status_code == 401
+
+
+@pytest.mark.asyncio
+async def test_me_requires_auth(client):
+    res = await client.get("/api/v1/auth/me")
+    assert res.status_code in (401, 403)  # missing Authorization header
+
+
+@pytest.mark.asyncio
+async def test_pending_user_cannot_access_championships(client):
+    await client.post(
+        "/api/v1/auth/register",
+        json={"email": "pending@example.com", "password": "pw", "full_name": "Pending"},
+    )
+    login = await client.post(
+        "/api/v1/auth/login",
+        json={"email": "pending@example.com", "password": "pw"},
+    )
+    token = login.json()["access_token"]
+    res = await client.get(
+        "/api/v1/championships",
+        headers={"Authorization": f"Bearer {token}"},
+    )
+    assert res.status_code == 403
+
+
+@pytest.mark.asyncio
+async def test_token_refresh(client):
+    await client.post(
+        "/api/v1/auth/register",
+        json={"email": "refresh@example.com", "password": "pw", "full_name": "Refresh"},
+    )
+    login = await client.post(
+        "/api/v1/auth/login",
+        json={"email": "refresh@example.com", "password": "pw"},
+    )
+    refresh_token = login.json()["refresh_token"]
+
+    res = await client.post("/api/v1/auth/refresh", json={"refresh_token": refresh_token})
+    assert res.status_code == 200
+    new_tokens = res.json()
+    assert "access_token" in new_tokens
+
+    # Old refresh token should now be revoked
+    res2 = await client.post("/api/v1/auth/refresh", json={"refresh_token": refresh_token})
+    assert res2.status_code == 401
--- a/backend/tests/test_instagram_parser.py
+++ b/backend/tests/test_instagram_parser.py
@@ -0,0 +1,46 @@
+from datetime import datetime, timezone
+
+from app.services.instagram_service import parse_caption
+
+
+def test_parse_basic_russian_post():
+    text = """Открытый Чемпионат по Pole Dance
+Место: Москва, ул. Арбат, 10
+Дата: 15 марта 2026
+Регистрация открыта!"""
+    result = parse_caption(text)
+    assert result.title == "Открытый Чемпионат по Pole Dance"
+    assert result.location == "Москва, ул. Арбат, 10"
+    assert result.event_date == datetime(2026, 3, 15, tzinfo=timezone.utc)
+
+
+def test_parse_dot_date_format():
+    text = "Summer Cup\nLocation: Saint Petersburg\n15.07.2026"
+    result = parse_caption(text)
+    assert result.event_date == datetime(2026, 7, 15, tzinfo=timezone.utc)
+    assert result.location == "Saint Petersburg"
+
+
+def test_parse_english_date():
+    text = "Winter Championship\nVenue: Moscow Arena\nJanuary 20, 2027"
+    result = parse_caption(text)
+    assert result.event_date == datetime(2027, 1, 20, tzinfo=timezone.utc)
+
+
+def test_parse_no_date_returns_none():
+    text = "Some announcement\nNo date here"
+    result = parse_caption(text)
+    assert result.event_date is None
+    assert result.title == "Some announcement"
+
+
+def test_parse_with_image_url():
+    text = "Spring Cup"
+    result = parse_caption(text, image_url="https://example.com/img.jpg")
+    assert result.image_url == "https://example.com/img.jpg"
+
+
+def test_parse_empty_caption():
+    result = parse_caption("")
+    assert result.title == "Untitled Championship"
+    assert result.description is None
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -0,0 +1,41 @@
+version: "3.9"
+
+services:
+  postgres:
+    image: postgres:16-alpine
+    environment:
+      POSTGRES_DB: poledance
+      POSTGRES_USER: poledance
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U poledance"]
+      interval: 5s
+      timeout: 5s
+      retries: 10
+
+  backend:
+    build: ./backend
+    command: uvicorn app.main:app --host 0.0.0.0 --port 8000 --reload
+    environment:
+      DATABASE_URL: postgresql+asyncpg://poledance:${POSTGRES_PASSWORD}@postgres:5432/poledance
+      SECRET_KEY: ${SECRET_KEY}
+      ALGORITHM: HS256
+      ACCESS_TOKEN_EXPIRE_MINUTES: 15
+      REFRESH_TOKEN_EXPIRE_DAYS: 7
+      INSTAGRAM_USER_ID: ${INSTAGRAM_USER_ID:-}
+      INSTAGRAM_ACCESS_TOKEN: ${INSTAGRAM_ACCESS_TOKEN:-}
+      INSTAGRAM_POLL_INTERVAL: ${INSTAGRAM_POLL_INTERVAL:-1800}
+    ports:
+      - "8000:8000"
+    depends_on:
+      postgres:
+        condition: service_healthy
+    volumes:
+      - ./backend:/app
+
+volumes:
+  postgres_data:
--- a/1
+++ b/1
--- a/start-backend.bat
+++ b/start-backend.bat
@@ -0,0 +1,8 @@
+@echo off
+cd /d D:\PoleDanceApp\backend
+echo Starting Pole Dance Championships Backend...
+echo API docs: http://localhost:8000/docs
+echo Health:   http://localhost:8000/internal/health
+echo.
+.venv\Scripts\python.exe -m uvicorn app.main:app --host 0.0.0.0 --port 8000 --reload
+pause
--- a/start-mobile.bat
+++ b/start-mobile.bat
@@ -0,0 +1,8 @@
+@echo off
+cd /d D:\PoleDanceApp\mobile
+echo Starting Expo Mobile App...
+echo Scan the QR code with Expo Go on your phone.
+echo Your phone must be on the same Wi-Fi as this computer (IP: 10.4.4.24)
+echo.
+npx expo start --lan
+pause