Phase 1: Code cleanup - remove unused pages, components, and console.logs

- Deleted 6 empty folders (pages/Admin, pages/admin, pages/settings, components/debug, components/widgets, components/metrics)
- Removed unused template components:
  - ecommerce/ (7 files)
  - sample-componeents/ (2 HTML files)
  - charts/bar/ and charts/line/
  - tables/BasicTables/
- Deleted deprecated file: CurrentProcessingCard.old.tsx
- Removed console.log statements from:
  - UserProfile components (UserMetaCard, UserAddressCard, UserInfoCard)
  - Automation/ConfigModal
  - ImageQueueModal (8 statements)
  - ImageGenerationCard (7 statements)
- Applied ESLint auto-fixes (9 errors fixed)
- All builds pass ✓
- TypeScript compiles without errors ✓

frontend/src/pages/Setup/IndustriesSectorsKeywords.tsx

@@ -120,7 +120,7 @@ export default function IndustriesSectorsKeywords() {
 
     try {
       // Get already-attached keywords across ALL sectors for this site
-      let attachedSeedKeywordIds = new Set<number>();
+      const attachedSeedKeywordIds = new Set<number>();
       try {
         const { fetchKeywords, fetchSiteSectors } = await import('../../services/api');
         // Get all sectors for the site