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/berths/berth-columns.tsx

@@ -4,7 +4,6 @@ import { type ColumnDef } from '@tanstack/react-table';
 import { MoreHorizontal, Pencil, Activity } from 'lucide-react';
 import { useRouter, useParams } from 'next/navigation';
 
-import { Badge } from '@/components/ui/badge';
 import { Button } from '@/components/ui/button';
 import {
   DropdownMenu,