Initial commit: MyMidas personal finance tracker

Full-stack self-hosted finance app with FastAPI backend and React frontend.

Features:
- Accounts, transactions, budgets, investments with GBP base currency
- CSV import with auto-detection for 10 UK bank formats
- ML predictions: spending forecast, net worth projection, Monte Carlo
- 7 selectable themes (Obsidian, Arctic, Midnight, Vault, Terminal, Synthwave, Ledger)
- Receipt/document attachments on transactions (JPEG, PNG, WebP, PDF)
- AES-256-GCM field encryption, RS256 JWT, TOTP 2FA, RLS, audit log
- Encrypted nightly backups + key rotation script
- Mobile-responsive layout with bottom nav

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

backend/app/workers/snapshot.py

@@ -0,0 +1,23 @@
+import structlog
+from sqlalchemy import select
+
+logger = structlog.get_logger()
+
+
+async def snapshot_job() -> None:
+    from app.dependencies import get_session_factory
+    from app.db.models.user import User
+    from app.services.report_service import take_net_worth_snapshot
+
+    session_factory = get_session_factory()
+    async with session_factory() as db:
+        try:
+            result = await db.execute(select(User).where(User.deleted_at.is_(None)))
+            users = result.scalars().all()
+            for user in users:
+                await take_net_worth_snapshot(db, user.id, user.base_currency)
+            await db.commit()
+            logger.info("snapshot_job_done", users=len(users))
+        except Exception as exc:
+            await db.rollback()
+            logger.error("snapshot_job_failed", error=str(exc))