Fix all ESLint errors: remove unused imports, replace any types

- Remove ~60 unused imports and variables across 88 files
- Replace ~80 `any` type annotations with proper types (unknown,
  Record<string, unknown>, or specific types)
- Prefix unused callback args with underscore
- Fix unescaped JSX entities
- Lint now passes cleanly (0 errors, 2 intentional img warnings)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/lib/services/notes.service.ts

@@ -13,14 +13,6 @@ type EntityType = 'clients' | 'interests';
 
 // ─── Helpers ─────────────────────────────────────────────────────────────────
 
-function getTable(entityType: EntityType) {
-  return entityType === 'clients' ? clientNotes : interestNotes;
-}
-
-function getEntityIdField(entityType: EntityType) {
-  return entityType === 'clients' ? clientNotes.clientId : interestNotes.interestId;
-}
-
 async function verifyParentBelongsToPort(
   entityType: EntityType,
   entityId: string,