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

app/config.py

@@ -0,0 +1,44 @@
+"""
+Application Configuration
+Environment-based settings with sensible defaults
+"""
+import os
+from pathlib import Path
+
+# Database
+DATABASE_PATH = os.getenv("DATABASE_PATH", "parking.db")
+DATABASE_URL = os.getenv("DATABASE_URL", f"sqlite:///{DATABASE_PATH}")
+
+# JWT Authentication
+SECRET_KEY = os.getenv("SECRET_KEY", "change-me-in-production")
+ALGORITHM = "HS256"
+ACCESS_TOKEN_EXPIRE_MINUTES = 1440  # 24 hours
+
+# Server
+HOST = os.getenv("HOST", "0.0.0.0")
+PORT = int(os.getenv("PORT", "8000"))
+
+# CORS
+ALLOWED_ORIGINS = os.getenv("ALLOWED_ORIGINS", "http://localhost:8000,http://127.0.0.1:8000").split(",")
+
+# Authelia Integration
+AUTHELIA_ENABLED = os.getenv("AUTHELIA_ENABLED", "false").lower() == "true"
+# Header names sent by Authelia
+AUTHELIA_HEADER_USER = os.getenv("AUTHELIA_HEADER_USER", "Remote-User")
+AUTHELIA_HEADER_NAME = os.getenv("AUTHELIA_HEADER_NAME", "Remote-Name")
+AUTHELIA_HEADER_EMAIL = os.getenv("AUTHELIA_HEADER_EMAIL", "Remote-Email")
+AUTHELIA_HEADER_GROUPS = os.getenv("AUTHELIA_HEADER_GROUPS", "Remote-Groups")
+# Group to role mapping
+AUTHELIA_ADMIN_GROUP = os.getenv("AUTHELIA_ADMIN_GROUP", "parking-admins")
+AUTHELIA_MANAGER_GROUP = os.getenv("AUTHELIA_MANAGER_GROUP", "parking-managers")
+
+# Email (optional)
+SMTP_HOST = os.getenv("SMTP_HOST", "")
+SMTP_PORT = int(os.getenv("SMTP_PORT", "587"))
+SMTP_USER = os.getenv("SMTP_USER", "")
+SMTP_PASSWORD = os.getenv("SMTP_PASSWORD", "")
+SMTP_FROM_EMAIL = os.getenv("SMTP_FROM_EMAIL", SMTP_USER)
+
+# Paths
+BASE_DIR = Path(__file__).resolve().parent.parent
+FRONTEND_DIR = BASE_DIR / "frontend"