fix: enable JS-005 through JS-009 checks in main JS validation

The rules JS-005 (init guard), JS-006 (async error handling), JS-007
(loading state), JS-008 (apiClient vs fetch), and JS-009 (Utils.showToast)
were defined in _validate_js_file() but never called. Added these checks
to the main JavaScript validation loop.

This reveals 89 existing violations that need to be addressed.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/validate_architecture.py

@@ -2750,6 +2750,21 @@ class ArchitectureValidator:
             # JS-004: Check Alpine components set currentPage
             self._check_alpine_current_page(file_path, content, lines)
 
+            # JS-005: Check initialization guard
+            self._check_init_guard(file_path, content, lines)
+
+            # JS-006: Check async error handling
+            self._check_async_error_handling(file_path, content, lines)
+
+            # JS-007: Check loading state management
+            self._check_loading_state(file_path, content, lines)
+
+            # JS-008: Check for raw fetch() calls instead of apiClient
+            self._check_fetch_vs_api_client(file_path, content, lines)
+
+            # JS-009: Check for alert() or window.showToast instead of Utils.showToast()
+            self._check_toast_usage(file_path, content, lines)
+
             # JS-010: Check PlatformSettings usage for pagination
             self._check_platform_settings_usage(file_path, content, lines)