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/hooks/use-paginated-query.ts

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState, useCallback, useMemo, useEffect } from 'react';
+import { useState, useCallback, useMemo } from 'react';
 import { useQuery, useQueryClient, type QueryKey } from '@tanstack/react-query';
 import { useSearchParams, useRouter, usePathname } from 'next/navigation';
 
@@ -13,7 +13,7 @@ import {
   type FilterValues,
 } from '@/components/shared/filter-bar';
 
-interface UsePaginatedQueryOptions<T> {
+interface UsePaginatedQueryOptions {
   queryKey: QueryKey;
   endpoint: string;
   initialPage?: number;
@@ -27,7 +27,7 @@ export function usePaginatedQuery<T>({
   initialPage = 1,
   initialPageSize = 25,
   filterDefinitions = [],
-}: UsePaginatedQueryOptions<T>) {
+}: UsePaginatedQueryOptions) {
   const searchParams = useSearchParams();
   const router = useRouter();
   const pathname = usePathname();
@@ -67,7 +67,7 @@ export function usePaginatedQuery<T>({
       if (tab) params.set('tab', tab);
 
       const qs = params.toString();
-      router.replace(`${pathname}${qs ? `?${qs}` : ''}` as any, { scroll: false });
+      router.replace(`${pathname}${qs ? `?${qs}` : ''}`, { scroll: false });
     },
     [pathname, router, searchParams, initialPageSize],
   );
@@ -147,7 +147,7 @@ export function usePaginatedQuery<T>({
       if (!old) return old;
       return {
         ...old,
-        data: old.data.filter((item: any) => item.id !== id),
+        data: old.data.filter((item: Record<string, unknown>) => item.id !== id),
         pagination: {
           ...old.pagination,
           total: old.pagination.total - 1,