feat(notify-bridge): phase 1 - project scaffolding

Set up the Notify Bridge project structure:
- packages/core (notify_bridge_core) with provider, model, notification, template packages
- packages/server (notify_bridge_server) with FastAPI skeleton and health endpoint
- frontend with SvelteKit 2, Svelte 5, Tailwind CSS v4, static adapter
- Root configs: .gitignore, README.md, CLAUDE.md

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/server/src/notify_bridge_server/__init__.py

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+"""Notify Bridge Server — FastAPI REST API with SQLite database."""

packages/server/src/notify_bridge_server/api/__init__.py

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+"""API route modules."""

packages/server/src/notify_bridge_server/auth/__init__.py

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+"""Authentication — JWT, login, user management."""

packages/server/src/notify_bridge_server/config.py

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+"""Server configuration — settings, data directory, secrets."""
+
+import os
+from pathlib import Path
+
+
+DATA_DIR = Path(os.environ.get("NOTIFY_BRIDGE_DATA_DIR", "./data"))
+SECRET_KEY = os.environ.get("NOTIFY_BRIDGE_SECRET_KEY", "")
+DATABASE_URL = os.environ.get(
+    "NOTIFY_BRIDGE_DATABASE_URL",
+    f"sqlite+aiosqlite:///{DATA_DIR / 'notify_bridge.db'}",
+)

packages/server/src/notify_bridge_server/database/__init__.py

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+"""Database engine and models."""

packages/server/src/notify_bridge_server/main.py

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+"""Notify Bridge Server — FastAPI application entry point."""
+
+from fastapi import FastAPI
+
+app = FastAPI(title="Notify Bridge", version="0.1.0")
+
+
+@app.get("/api/health")
+async def health():
+    return {"status": "ok"}
+
+
+def run():
+    import uvicorn
+    uvicorn.run(app, host="0.0.0.0", port=8420)

packages/server/src/notify_bridge_server/services/__init__.py

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+"""Business logic services — scheduler, watcher, notifier."""