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>

.gitignore

@@ -0,0 +1,47 @@
+# Secrets and credentials — NEVER commit these
+.env
+.env.local
+.env.*.local
+secrets/
+data/
+
+# Python
+__pycache__/
+*.py[cod]
+*.pyo
+*.pyd
+.Python
+*.egg-info/
+dist/
+build/
+.venv/
+venv/
+*.egg
+.eggs/
+.pytest_cache/
+.coverage
+htmlcov/
+.mypy_cache/
+.ruff_cache/
+
+# Node / frontend
+frontend/node_modules/
+frontend/dist/
+frontend/.vite/
+
+# Editor / OS
+.DS_Store
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+Thumbs.db
+
+# Docker volumes / runtime state
+*.log
+*.pid
+
+# Internal planning artifacts
+PLAN.md
+TASKLIST.md