Fix avatar display by using url_for to generate correct static URLs

vidai/utils.py

@@ -19,6 +19,7 @@ Common utilities for Video AI application.
 Includes authentication decorators and helper functions.
 """
 
+from flask import url_for
 from .auth import get_current_user
 
 def get_current_user_session():
@@ -41,7 +42,7 @@ def get_current_user_session():
                 user['gravatar_url'] = f"https://www.gravatar.com/avatar/{email_hash}?s=32&d=404"
                 # If custom avatar, use that instead
                 if user.get('avatar'):
-                    user['avatar_url'] = f"/static/avatars/{user['avatar']}?t={int(time.time())}"
+                    user['avatar_url'] = url_for('static', filename=f'avatars/{user["avatar"]}') + f'?t={int(time.time())}'
                 else:
                     user['avatar_url'] = user['gravatar_url']
         return user

vidai/web.py

@@ -1109,12 +1109,6 @@ def delete_avatar():
     return redirect(url_for('account'))
 
 
-@app.route('/static/avatars/<filename>')
-def serve_avatar(filename):
-    """Serve user avatar files."""
-    return send_from_directory(avatars_dir, filename)
-
-
 @app.route('/account/change_password', methods=['POST'])
 @login_required
 def change_password():