Implement Role Management Features and UI Enhancements

- Introduced a new composable `useActiveRole` for managing user roles, including fetching role status and switching roles with server validation.
- Updated `RoleSwitcher.vue` to utilize the new composable, enhancing role selection with improved error handling and UI feedback.
- Added new API endpoints for role management, including fetching user role status and switching active roles.
- Enhanced product visibility logic to filter based on the user's active role, ensuring a tailored experience.
- Updated database schema to support last active role tracking for users, improving session management.
- Refined UI components across the application to reflect role-based changes and improve user experience.

.claude/settings.local.json

@@ -80,7 +80,12 @@
       "Bash(pnpm remove:*)",
       "Bash(pnpm db:generate:*)",
       "Bash(pnpm tsx:*)",
-      "Bash(node test-roleswitcher-keyboard.mjs:*)"
+      "Bash(node test-roleswitcher-keyboard.mjs:*)",
+      "Bash(tmux capture-pane:*)",
+      "Bash(tmux list-sessions:*)",
+      "Bash(tmux send-keys:*)",
+      "Bash(tmux new-session:*)",
+      "Bash(tmux kill-session:*)"
     ],
     "deny": [],
     "ask": []