fix: Add scrollable container to ToolSelectorModal for small screens

- Add max-h-[90vh] and flex-col to modal content container
- Wrap tools grid in max-h-[50vh] overflow-y-auto container
- Add overscroll-contain for smooth scroll behavior on mobile
- Fixes issue where 21 PDF tools overflow viewport on small screens

frontend/src/config/routes.ts

@@ -4,9 +4,12 @@
  * SAFETY RULE: Never remove a route from this list.
  * New routes may only be appended. The route safety test
  * (routes.test.ts) will fail if any existing route is deleted.
+ *
+ * Tool routes are now derived from the unified manifest (toolManifest.ts).
  */
 
 import { getAllSeoLandingPaths } from '@/config/seoPages';
+import { getManifestRoutePaths } from '@/config/toolManifest';
 
 const STATIC_PAGE_ROUTES = [
   '/',
@@ -35,68 +38,8 @@ export const PAGE_ROUTES = [
   '/ar/:slug',
 ] as const;
 
-// ─── Tool routes ─────────────────────────────────────────────────
-export const TOOL_ROUTES = [
-  // PDF Tools
-  '/tools/pdf-to-word',
-  '/tools/word-to-pdf',
-  '/tools/compress-pdf',
-  '/tools/merge-pdf',
-  '/tools/split-pdf',
-  '/tools/rotate-pdf',
-  '/tools/pdf-to-images',
-  '/tools/images-to-pdf',
-  '/tools/watermark-pdf',
-  '/tools/protect-pdf',
-  '/tools/unlock-pdf',
-  '/tools/page-numbers',
-  '/tools/pdf-editor',
-  '/tools/pdf-flowchart',
-  '/tools/pdf-to-excel',
-  '/tools/remove-watermark-pdf',
-  '/tools/reorder-pdf',
-  '/tools/extract-pages',
-
-  // Image Tools
-  '/tools/image-converter',
-  '/tools/image-resize',
-  '/tools/compress-image',
-  '/tools/ocr',
-  '/tools/remove-background',
-  '/tools/image-to-svg',
-
-  // Convert Tools
-  '/tools/html-to-pdf',
-
-  // AI Tools
-  '/tools/chat-pdf',
-  '/tools/summarize-pdf',
-  '/tools/translate-pdf',
-  '/tools/extract-tables',
-
-  // Other Tools
-  '/tools/qr-code',
-  '/tools/video-to-gif',
-  '/tools/word-counter',
-  '/tools/text-cleaner',
-
-  // Phase 2 – PDF Conversion
-  '/tools/pdf-to-pptx',
-  '/tools/excel-to-pdf',
-  '/tools/pptx-to-pdf',
-  '/tools/sign-pdf',
-
-  // Phase 2 – PDF Extra Tools
-  '/tools/crop-pdf',
-  '/tools/flatten-pdf',
-  '/tools/repair-pdf',
-  '/tools/pdf-metadata',
-
-  // Phase 2 – Image & Utility
-  '/tools/image-crop',
-  '/tools/image-rotate-flip',
-  '/tools/barcode-generator',
-] as const;
+// ─── Tool routes (derived from manifest) ─────────────────────────
+export const TOOL_ROUTES = getManifestRoutePaths() as unknown as readonly string[];
 
 // ─── All routes combined ─────────────────────────────────────────
 export const ALL_ROUTES = [...PAGE_ROUTES, ...TOOL_ROUTES] as const;