docs: update env and docker-compose for session-based auth

- Replace JWT config with SESSION_SECRET and SESSION_TTL_HOURS
- Remove AUTHENTIK_JWKS_URL, ISSUER, AUDIENCE (no longer needed)
- Update docker-compose.traefik.yml environment variables

.env.example

@@ -6,10 +6,9 @@ POSTGRES_DB=headquarter
 # Redis Configuration
 REDIS_URL=redis://redis:6379/0
 
-# JWT Configuration
-JWT_SECRET=change-me-in-production
-JWT_ALGORITHM=HS256
-JWT_EXPIRATION_HOURS=24
+# Session Configuration
+SESSION_SECRET=change-me-in-production
+SESSION_TTL_HOURS=24
 
 # Application Configuration
 APP_ENV=development
@@ -37,9 +36,6 @@ AUTHENTIK_APPLICATION_SLUG=headquarter-web
 # Override Authentik URLs if they differ from the default pattern
 # AUTHENTIK_AUTHORIZE_URL=https://authentik.example.com/application/o/authorize/
 # AUTHENTIK_TOKEN_URL=https://authentik.example.com/application/o/token/
-# AUTHENTIK_JWKS_URL=https://authentik.example.com/application/o/headquarter-web/jwks/
-# AUTHENTIK_ISSUER=https://authentik.example.com/application/o/headquarter-web/
-AUTHENTIK_AUDIENCE=headquarter-web
 
 # Frontend Configuration
 VITE_API_BASE_URL=http://localhost:8000