fix: production readiness — resolve build, lint, and code quality issues

- Fix Next.js build failure: remove duplicate route at (dashboard)/listings/[id]
  that conflicted with (public)/listings/[id] (same URL path in two route groups)
- Fix 772 ESLint errors: auto-fix import ordering (import-x/order), remove unused
  imports/variables, convert empty interfaces to type aliases, replace require()
  with ESM imports, fix consistent-type-imports violations
- Add CLAUDE.md for developer onboarding documentation
- All checks pass: 0 lint errors, typecheck clean, 230 tests passing, build success

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/web/components/listings/image-gallery.tsx

@@ -1,9 +1,9 @@
 'use client';
 
-import * as React from 'react';
 import Image from 'next/image';
-import { cn } from '@/lib/utils';
+import * as React from 'react';
 import type { PropertyMedia } from '@/lib/listings-api';
+import { cn } from '@/lib/utils';
 
 interface ImageGalleryProps {
   media: PropertyMedia[];

apps/web/components/listings/image-upload.tsx

@@ -1,8 +1,8 @@
 'use client';
 
 import * as React from 'react';
-import { cn } from '@/lib/utils';
 import { Button } from '@/components/ui/button';
+import { cn } from '@/lib/utils';
 
 interface ImageFile {
   file: File;
@@ -79,8 +79,7 @@ export function ImageUpload({ images, onChange, maxFiles = 20, className }: Imag
     return () => {
       images.forEach((img) => URL.revokeObjectURL(img.preview));
     };
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, []);
+  }, []); // intentionally empty: runs only on unmount to revoke object URLs
 
   return (
     <div className={cn('space-y-4', className)}>

apps/web/components/listings/listing-form-steps.tsx

@@ -1,15 +1,15 @@
 'use client';
 
+import type { UseFormRegister, FieldErrors } from 'react-hook-form';
 import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
-import { Textarea } from '@/components/ui/textarea';
 import { Select } from '@/components/ui/select';
+import { Textarea } from '@/components/ui/textarea';
 import {
   TRANSACTION_TYPES,
   PROPERTY_TYPES,
   DIRECTIONS,
 } from '@/lib/validations/listings';
-import type { UseFormRegister, FieldErrors } from 'react-hook-form';
 import type { CreateListingFormData } from '@/lib/validations/listings';
 
 interface StepProps {

apps/web/components/listings/listing-status-badge.tsx

@@ -1,6 +1,6 @@
 import { Badge } from '@/components/ui/badge';
-import { LISTING_STATUSES } from '@/lib/validations/listings';
 import type { ListingStatus } from '@/lib/listings-api';
+import { LISTING_STATUSES } from '@/lib/validations/listings';
 
 interface ListingStatusBadgeProps {
   status: ListingStatus;

apps/web/components/map/listing-map.tsx

@@ -1,9 +1,8 @@
 'use client';
 
-import * as React from 'react';
 import mapboxgl from 'mapbox-gl';
+import * as React from 'react';
 import 'mapbox-gl/dist/mapbox-gl.css';
-import { Badge } from '@/components/ui/badge';
 import type { ListingDetail } from '@/lib/listings-api';
 
 function formatPrice(priceVND: string): string {

apps/web/components/search/property-card.tsx

@@ -2,8 +2,8 @@
 
 import Image from 'next/image';
 import Link from 'next/link';
-import { Card, CardContent } from '@/components/ui/card';
 import { Badge } from '@/components/ui/badge';
+import { Card, CardContent } from '@/components/ui/card';
 import type { ListingDetail } from '@/lib/listings-api';
 
 function formatPrice(priceVND: string): string {

apps/web/components/search/search-results.tsx

@@ -3,8 +3,8 @@
 import * as React from 'react';
 import { Button } from '@/components/ui/button';
 import { Select } from '@/components/ui/select';
-import { PropertyCard } from './property-card';
 import type { ListingDetail, PaginatedResult } from '@/lib/listings-api';
+import { PropertyCard } from './property-card';
 
 interface SearchResultsProps {
   result: PaginatedResult<ListingDetail> | null;

apps/web/components/ui/badge.tsx

@@ -1,5 +1,5 @@
-import * as React from 'react';
 import { cva, type VariantProps } from 'class-variance-authority';
+import * as React from 'react';
 import { cn } from '@/lib/utils';
 
 const badgeVariants = cva(

apps/web/components/ui/button.tsx

@@ -1,5 +1,5 @@
-import * as React from 'react';
 import { cva, type VariantProps } from 'class-variance-authority';
+import * as React from 'react';
 import { cn } from '@/lib/utils';
 
 const buttonVariants = cva(

apps/web/components/ui/input.tsx

@@ -1,7 +1,7 @@
 import * as React from 'react';
 import { cn } from '@/lib/utils';
 
-export interface InputProps extends React.InputHTMLAttributes<HTMLInputElement> {}
+export type InputProps = React.InputHTMLAttributes<HTMLInputElement>;
 
 const Input = React.forwardRef<HTMLInputElement, InputProps>(
   ({ className, type, ...props }, ref) => {

apps/web/components/ui/label.tsx

@@ -1,7 +1,7 @@
 'use client';
 
-import * as React from 'react';
 import { cva, type VariantProps } from 'class-variance-authority';
+import * as React from 'react';
 import { cn } from '@/lib/utils';
 
 const labelVariants = cva(

apps/web/components/ui/select.tsx

@@ -1,7 +1,7 @@
 import * as React from 'react';
 import { cn } from '@/lib/utils';
 
-export interface SelectProps extends React.SelectHTMLAttributes<HTMLSelectElement> {}
+export type SelectProps = React.SelectHTMLAttributes<HTMLSelectElement>;
 
 const Select = React.forwardRef<HTMLSelectElement, SelectProps>(
   ({ className, children, ...props }, ref) => {

apps/web/components/ui/textarea.tsx

@@ -1,7 +1,7 @@
 import * as React from 'react';
 import { cn } from '@/lib/utils';
 
-export interface TextareaProps extends React.TextareaHTMLAttributes<HTMLTextAreaElement> {}
+export type TextareaProps = React.TextareaHTMLAttributes<HTMLTextAreaElement>;
 
 const Textarea = React.forwardRef<HTMLTextAreaElement, TextareaProps>(
   ({ className, ...props }, ref) => {