feat: enhance child edit and view components with improved form handling and validation

- Added `requireDirty` prop to `EntityEditForm` for dirty state management.
- Updated `ChildEditView` to handle initial data loading and image selection more robustly.
- Refactored `ChildView` to remove unused reward dialog logic and prevent API calls in child mode.
- Improved type definitions for form fields and initial data in `ChildEditView`.
- Enhanced error handling in form submissions across components.
- Implemented cross-tab logout synchronization on password reset in the auth store.
- Added tests for login and entity edit form functionalities to ensure proper behavior.
- Introduced global fetch interceptor for handling unauthorized responses.
- Documented password reset flow and its implications on session management.

backend/models/user.py

@@ -21,6 +21,7 @@ class User(BaseModel):
     deletion_in_progress: bool = False
     deletion_attempted_at: str | None = None
     role: str = 'user'
+    token_version: int = 0
 
     @classmethod
     def from_dict(cls, d: dict):
@@ -43,6 +44,7 @@ class User(BaseModel):
             deletion_in_progress=d.get('deletion_in_progress', False),
             deletion_attempted_at=d.get('deletion_attempted_at'),
             role=d.get('role', 'user'),
+            token_version=d.get('token_version', 0),
             id=d.get('id'),
             created_at=d.get('created_at'),
             updated_at=d.get('updated_at')
@@ -69,6 +71,7 @@ class User(BaseModel):
             'marked_for_deletion_at': self.marked_for_deletion_at,
             'deletion_in_progress': self.deletion_in_progress,
             'deletion_attempted_at': self.deletion_attempted_at,
-            'role': self.role
+            'role': self.role,
+            'token_version': self.token_version,
         })
         return base