chore: Update Documentation

.ai/context.json

@@ -115,12 +115,29 @@
       "description": "Admin role management, platform catalog CRUD, station oversight",
       "status": "implemented"
     },
-    "vehicles": {
-      "path": "backend/src/features/vehicles/",
+    "auth": {
+      "path": "backend/src/features/auth/",
       "type": "core_feature",
       "self_contained": true,
-      "database_tables": ["vehicles"],
-      "cache_strategy": "User vehicle lists: 5 minutes",
+      "database_tables": [],
+      "description": "User signup, email verification workflow using Auth0",
+      "status": "implemented"
+    },
+    "backup": {
+      "path": "backend/src/features/backup/",
+      "type": "admin_feature",
+      "self_contained": true,
+      "database_tables": ["backup_schedules", "backup_history", "backup_settings"],
+      "storage": "/app/data/backups/",
+      "description": "Manual and scheduled database/document backups with retention policies",
+      "status": "implemented"
+    },
+    "documents": {
+      "path": "backend/src/features/documents/",
+      "type": "independent_feature",
+      "self_contained": true,
+      "database_tables": ["documents"],
+      "storage": "/app/data/documents/",
       "status": "implemented"
     },
     "fuel-logs": {
@@ -141,21 +158,23 @@
       "cache_strategy": "Upcoming maintenance: 1 hour",
       "status": "implemented"
     },
-    "stations": {
-      "path": "backend/src/features/stations/",
-      "type": "independent_feature",
+    "notifications": {
+      "path": "backend/src/features/notifications/",
+      "type": "dependent_feature",
       "self_contained": true,
-      "external_apis": ["Google Maps API"],
-      "database_tables": ["stations", "community_stations"],
-      "cache_strategy": "Station searches: 1 hour",
+      "depends_on": ["maintenance", "documents"],
+      "database_tables": ["email_templates", "notification_logs", "sent_notification_tracker", "user_notifications"],
+      "external_apis": ["Resend"],
+      "description": "Email and toast notifications for maintenance due/overdue and expiring documents",
       "status": "implemented"
     },
-    "documents": {
-      "path": "backend/src/features/documents/",
-      "type": "independent_feature",
+    "onboarding": {
+      "path": "backend/src/features/onboarding/",
+      "type": "dependent_feature",
       "self_contained": true,
-      "database_tables": ["documents"],
-      "storage": "/app/data/documents/",
+      "depends_on": ["user-profile", "user-preferences"],
+      "database_tables": [],
+      "description": "User onboarding flow after email verification (preferences, first vehicle)",
       "status": "implemented"
     },
     "platform": {
@@ -166,11 +185,61 @@
       "cache_strategy": "Vehicle hierarchical data: 6 hours",
       "description": "Vehicle hierarchical data lookups (years, makes, models, trims, engines). VIN decoding is planned/future.",
       "status": "implemented_vin_decode_planned"
+    },
+    "stations": {
+      "path": "backend/src/features/stations/",
+      "type": "independent_feature",
+      "self_contained": true,
+      "external_apis": ["Google Maps API"],
+      "database_tables": ["stations", "community_stations"],
+      "cache_strategy": "Station searches: 1 hour",
+      "status": "implemented"
+    },
+    "terms-agreement": {
+      "path": "backend/src/features/terms-agreement/",
+      "type": "core_feature",
+      "self_contained": true,
+      "database_tables": ["terms_agreements"],
+      "description": "Legal audit trail for Terms & Conditions acceptance at signup",
+      "status": "implemented"
+    },
+    "user-export": {
+      "path": "backend/src/features/user-export/",
+      "type": "independent_feature",
+      "self_contained": true,
+      "depends_on": ["vehicles", "fuel-logs", "documents", "maintenance"],
+      "database_tables": [],
+      "description": "GDPR-compliant user data export (vehicles, logs, documents as TAR.GZ)",
+      "status": "implemented"
+    },
+    "user-preferences": {
+      "path": "backend/src/features/user-preferences/",
+      "type": "core_feature",
+      "self_contained": true,
+      "database_tables": ["user_preferences"],
+      "description": "User preference management (unit system, currency, timezone)",
+      "status": "implemented"
+    },
+    "user-profile": {
+      "path": "backend/src/features/user-profile/",
+      "type": "core_feature",
+      "self_contained": true,
+      "database_tables": ["user_profiles"],
+      "description": "User profile management (email, display name, notification email)",
+      "status": "implemented"
+    },
+    "vehicles": {
+      "path": "backend/src/features/vehicles/",
+      "type": "core_feature",
+      "self_contained": true,
+      "database_tables": ["vehicles"],
+      "cache_strategy": "User vehicle lists: 5 minutes",
+      "status": "implemented"
     }
   },
   "feature_dependencies": {
     "explanation": "Logical dependencies within single application service - all deploy together",
-    "sequence": ["admin", "platform", "vehicles", "fuel-logs", "maintenance", "stations", "documents"]
+    "sequence": ["admin", "auth", "user-profile", "user-preferences", "terms-agreement", "onboarding", "platform", "vehicles", "fuel-logs", "maintenance", "stations", "documents", "notifications", "backup", "user-export"]
   },
   "development_environment": {
     "type": "production_only_docker",
@@ -206,7 +275,8 @@
     },
     "external_apis": [
       "Google Maps API",
-      "Auth0"
+      "Auth0",
+      "Resend"
     ]
   },
   "network_topology": {