- Added DEFAULT_DIRECTORY_CONFIG constant with all directory fields

- Added get_directory_config() and save_directory_config() helper functions
- Created 4 new endpoints:
	- GET /api/directory/config - Public endpoint for frontend
	- GET /api/admin/directory/config - Admin view with metadata
	- PUT /api/admin/directory/config - Update configuration
	- POST /api/admin/directory/config/reset - Reset to defaults
- Fixed a bug: Changed SystemSettings.key → SystemSettings.setting_key (correct column name)
- Added JSON serialization/deserialization for storing config in Text column

seed_permissions_rbac.py

@@ -127,6 +127,10 @@ PERMISSIONS = [
     # ========== REGISTRATION MODULE (2) ==========
     {"code": "registration.view", "name": "View Registration Settings", "description": "View registration form schema and settings", "module": "registration"},
     {"code": "registration.manage", "name": "Manage Registration Form", "description": "Edit registration form schema, steps, and fields", "module": "registration"},
+
+    # ========== DIRECTORY MODULE (2) ==========
+    {"code": "directory.view", "name": "View Directory Settings", "description": "View member directory field configuration", "module": "directory"},
+    {"code": "directory.manage", "name": "Manage Directory Fields", "description": "Enable/disable directory fields shown in Profile and Directory pages", "module": "directory"},
 ]
 
 # Default system roles that must exist
@@ -210,6 +214,8 @@ DEFAULT_ROLE_PERMISSIONS = {
         "payment_methods.delete", "payment_methods.set_default",
         # Registration form management
         "registration.view", "registration.manage",
+        # Directory configuration
+        "directory.view", "directory.manage",
     ],
 
     "superadmin": [