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/components/interests/interest-documents-tab.tsx

@@ -1,7 +1,7 @@
 'use client';
 
 import { useState } from 'react';
-import { useQuery, useQueryClient } from '@tanstack/react-query';
+import { useQuery } from '@tanstack/react-query';
 
 import { Button } from '@/components/ui/button';
 import { DocumentList } from '@/components/documents/document-list';
@@ -25,7 +25,6 @@ interface InterestData {
 
 export function InterestDocumentsTab({ interestId }: InterestDocumentsTabProps) {
   const [eoiDialogOpen, setEoiDialogOpen] = useState(false);
-  const queryClient = useQueryClient();
 
   const { data: interestRes } = useQuery({
     queryKey: ['interests', interestId],