Initial commit: Parking Manager

Features:
- Manager-centric parking spot management
- Fair assignment algorithm (parking/presence ratio)
- Presence tracking calendar
- Closing days (specific & weekly recurring)
- Guarantees and exclusions
- Authelia/LLDAP integration for SSO

Stack:
- FastAPI backend
- SQLite database
- Vanilla JS frontend
- Docker deployment

deploy/Caddyfile.snippet

@@ -0,0 +1,8 @@
+# Caddy configuration snippet for parking.rocketscale.it
+# Add this block to org-stack/Caddyfile after the (auth) snippet definition
+
+# Parking Manager - Protected by Authelia
+parking.rocketscale.it {
+    import auth
+    reverse_proxy parking:8000
+}