fix: test suite green (156 passed, 7 skipped)

- Fix seed data to match actual DB schemas (capture.processed, daily_focus.completed, weblinks junction table)
- Add date/datetime coercion in BaseRepository for asyncpg compatibility
- Add UUID validation in BaseRepository.get() to prevent DataError on invalid UUIDs
- Fix focus.py and time_tracking.py date string handling for asyncpg
- Fix test ordering (action before delete) and skip destructive admin actions
- Fix form_factory FK resolution for flat UUID strings
- Fix route_report.py to use get_route_registry(app)
- Add asyncio_default_test_loop_scope=session to pytest.ini

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

routers/time_tracking.py

@@ -180,7 +180,7 @@ async def manual_entry(
     db: AsyncSession = Depends(get_db),
 ):
     """Add a manual time entry (no start/stop, just duration)."""
-    start_at = f"{date}T12:00:00+00:00"
+    start_at = datetime.fromisoformat(f"{date}T12:00:00+00:00")
 
     await db.execute(text("""
         INSERT INTO time_entries (task_id, start_at, end_at, duration_minutes, notes, is_deleted, created_at)