feat: add Planka service provider with full notification and command support

Webhook-based provider for Planka (self-hosted Kanban board) with:
- 15 event types (cards, boards, lists, comments, tasks, attachments, labels)
- Bearer token webhook authentication
- Async API client for boards/cards/lists
- 30 notification templates (en/ru) + 26 command templates (en/ru)
- Bot commands: /status, /boards, /cards, /lists
- Default tracking config, template config, command config seeded on startup
- DB migration for 15 new tracking_config columns
- Frontend: provider config UI with auto-name, Planka-specific hints
- Frontend: tracking config event toggles for all 15 Planka events

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

@@ -183,6 +183,7 @@ async def _seed_default_templates() -> None:
     async with AsyncSession(engine) as session:
         await _seed_provider_template(session, "immich", "Immich")
         await _seed_provider_template(session, "gitea", "Gitea")
+        await _seed_provider_template(session, "planka", "Planka")
         await _seed_provider_template(session, "scheduler", "Scheduler")
         await session.commit()
 
@@ -201,6 +202,9 @@ async def _seed_default_command_templates() -> None:
         await _seed_provider_command_template(
             session, "gitea", "Default Gitea Commands", "Default Gitea command templates",
         )
+        await _seed_provider_command_template(
+            session, "planka", "Default Planka Commands", "Default Planka command templates",
+        )
         await session.commit()
 
 
@@ -227,6 +231,25 @@ async def _seed_default_tracking_configs() -> None:
                 "track_pr_commented": False,
                 "track_release_published": True,
             },
+            {
+                "provider_type": "planka",
+                "name": "Default Planka",
+                "track_card_created": True,
+                "track_card_updated": False,
+                "track_card_moved": True,
+                "track_card_deleted": False,
+                "track_card_commented": True,
+                "track_comment_updated": False,
+                "track_board_created": True,
+                "track_board_updated": False,
+                "track_board_deleted": True,
+                "track_list_created": False,
+                "track_list_updated": False,
+                "track_list_deleted": False,
+                "track_attachment_created": True,
+                "track_card_label_added": False,
+                "track_task_completed": True,
+            },
             {
                 "provider_type": "scheduler",
                 "name": "Default Scheduler",
@@ -280,6 +303,16 @@ async def _seed_default_command_configs() -> None:
                 "default_count": 10,
                 "rate_limits": {"api": 15, "default": 10},
             },
+            {
+                "provider_type": "planka",
+                "name": "Default Planka",
+                "enabled_commands": [
+                    "help", "status", "boards", "cards", "lists",
+                ],
+                "response_mode": "text",
+                "default_count": 10,
+                "rate_limits": {"api": 15, "default": 10},
+            },
         ]
 
         for cfg in defaults: