feat: frontend unlimited — raise all client-side caps and timeouts

- XHR timeouts: doubled across all tool categories (120s/300s/600s)
- Pipeline timeout: 180s → 600s
- Favicon/PDF/barcode timeouts raised to 300s
- Files page: fetch 200 per page
- Split grid: 20 → 100 max columns/rows
- Image viewer zoom: 25-300% → 10-1000%
- Collage zoom: 3x → 10x, pan: ±100 → ±200
- Passport photo: face adjust ±15% → ±30%, zoom 3x → 5x

apps/web/src/stores/files-page-store.ts

@@ -35,7 +35,7 @@ export const useFilesPageStore = create<FilesPageState>((set, get) => ({
     set({ loading: true, error: null });
     try {
       const { searchQuery } = get();
-      const result = await apiListFiles({ search: searchQuery || undefined, limit: 100 });
+      const result = await apiListFiles({ search: searchQuery || undefined, limit: 200 });
       set({ files: result.files, total: result.total, loading: false });
     } catch (err) {
       set({ error: err instanceof Error ? err.message : "Failed to load files", loading: false });

apps/web/src/stores/split-store.ts

@@ -68,8 +68,8 @@ export const useSplitStore = create<SplitState>((set, get) => ({
 
   setMode: (mode) => set({ mode, tiles: [], zipBlobUrl: null, error: null }),
   setColumns: (columns) =>
-    set({ columns: Math.max(1, Math.min(20, columns)), tiles: [], zipBlobUrl: null }),
-  setRows: (rows) => set({ rows: Math.max(1, Math.min(20, rows)), tiles: [], zipBlobUrl: null }),
+    set({ columns: Math.max(1, Math.min(100, columns)), tiles: [], zipBlobUrl: null }),
+  setRows: (rows) => set({ rows: Math.max(1, Math.min(100, rows)), tiles: [], zipBlobUrl: null }),
   setTileWidth: (tileWidth) =>
     set({ tileWidth: Math.max(10, tileWidth), tiles: [], zipBlobUrl: null }),
   setTileHeight: (tileHeight) =>