chore(documents): remove legacy /documents/files route + folder tree

The /documents/files page rendered a storagePath-prefix folder tree
disconnected from document_folders. Replaced by the unified hub
(Task 15). 301 redirect catches stray bookmarks. file-browser-store
repurposed to hold the document_folders.id selection.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/files/folder-tree.tsx

@@ -1,139 +0,0 @@
-'use client';
-
-import { useState } from 'react';
-import { ChevronDown, ChevronRight, Folder, FolderOpen } from 'lucide-react';
-
-import { cn } from '@/lib/utils';
-import type { FileRow } from '@/components/files/file-grid';
-
-interface FolderNode {
-  name: string;
-  fullPath: string;
-  children: Record<string, FolderNode>;
-}
-
-function buildFolderTree(files: FileRow[]): FolderNode {
-  const root: FolderNode = { name: '', fullPath: '', children: {} };
-
-  for (const file of files) {
-    const parts = file.storagePath ? file.storagePath.split('/').slice(0, -1) : [];
-    if (parts.length <= 1) continue; // skip files directly in root/port folder
-
-    let node = root;
-    let accumulated = '';
-    for (const part of parts.slice(1)) { // skip portSlug prefix
-      accumulated = accumulated ? `${accumulated}/${part}` : part;
-      if (!node.children[part]) {
-        node.children[part] = { name: part, fullPath: accumulated, children: {} };
-      }
-      node = node.children[part]!;
-    }
-  }
-
-  return root;
-}
-
-interface FolderNodeComponentProps {
-  node: FolderNode;
-  currentFolder: string;
-  onFolderSelect: (path: string) => void;
-  depth?: number;
-}
-
-function FolderNodeComponent({
-  node,
-  currentFolder,
-  onFolderSelect,
-  depth = 0,
-}: FolderNodeComponentProps) {
-  const [expanded, setExpanded] = useState(true);
-  const hasChildren = Object.keys(node.children).length > 0;
-  const isSelected = currentFolder === node.fullPath;
-
-  return (
-    <div>
-      <button
-        type="button"
-        onClick={() => {
-          onFolderSelect(node.fullPath);
-          if (hasChildren) setExpanded((v) => !v);
-        }}
-        className={cn(
-          'flex w-full items-center gap-1.5 rounded px-2 py-1 text-left text-sm hover:bg-muted/60 transition-colors',
-          isSelected && 'bg-muted font-medium',
-        )}
-        style={{ paddingLeft: `${depth * 12 + 8}px` }}
-      >
-        {hasChildren ? (
-          expanded ? (
-            <ChevronDown className="h-3.5 w-3.5 shrink-0 text-muted-foreground" />
-          ) : (
-            <ChevronRight className="h-3.5 w-3.5 shrink-0 text-muted-foreground" />
-          )
-        ) : (
-          <span className="w-3.5" />
-        )}
-        {isSelected ? (
-          <FolderOpen className="h-4 w-4 shrink-0 text-primary" />
-        ) : (
-          <Folder className="h-4 w-4 shrink-0 text-muted-foreground" />
-        )}
-        <span className="truncate">{node.name}</span>
-      </button>
-
-      {hasChildren && expanded && (
-        <div>
-          {Object.values(node.children).map((child) => (
-            <FolderNodeComponent
-              key={child.fullPath}
-              node={child}
-              currentFolder={currentFolder}
-              onFolderSelect={onFolderSelect}
-              depth={depth + 1}
-            />
-          ))}
-        </div>
-      )}
-    </div>
-  );
-}
-
-interface FolderTreeProps {
-  files: (FileRow & { storagePath: string })[];
-  currentFolder: string;
-  onFolderSelect: (path: string) => void;
-}
-
-export function FolderTree({ files, currentFolder, onFolderSelect }: FolderTreeProps) {
-  const tree = buildFolderTree(files);
-
-  return (
-    <div className="space-y-0.5">
-      <button
-        type="button"
-        onClick={() => onFolderSelect('')}
-        className={cn(
-          'flex w-full items-center gap-1.5 rounded px-2 py-1 text-left text-sm hover:bg-muted/60 transition-colors',
-          currentFolder === '' && 'bg-muted font-medium',
-        )}
-      >
-        <span className="w-3.5" />
-        {currentFolder === '' ? (
-          <FolderOpen className="h-4 w-4 shrink-0 text-primary" />
-        ) : (
-          <Folder className="h-4 w-4 shrink-0 text-muted-foreground" />
-        )}
-        <span>All Files</span>
-      </button>
-
-      {Object.values(tree.children).map((child) => (
-        <FolderNodeComponent
-          key={child.fullPath}
-          node={child}
-          currentFolder={currentFolder}
-          onFolderSelect={onFolderSelect}
-        />
-      ))}
-    </div>
-  );
-}

src/components/layout/sidebar.tsx

@@ -13,7 +13,6 @@ import {
   Building2,
   Receipt,
   FileText,
-  FolderOpen,
   Bell,
   Camera,
   Globe,
@@ -116,10 +115,7 @@ function buildNavSections(portSlug: string | undefined): NavSection[] {
     {
       title: 'Documents',
       marinaRequired: true,
-      items: [
-        { href: `${base}/documents`, label: 'Documents', icon: FileText },
-        { href: `${base}/documents/files`, label: 'Files', icon: FolderOpen },
-      ],
+      items: [{ href: `${base}/documents`, label: 'Documents', icon: FileText }],
     },
     {
       title: 'Financial',

src/components/search/command-search.tsx

@@ -1010,7 +1010,7 @@ function buildFlatRows(args: BuildFlatRowsArgs): FlatRow[] {
         icon: Folder,
         label: f.filename,
         sub: f.ownerLabel,
-        href: `/${portSlug}/documents/files`,
+        href: `/${portSlug}/documents`,
       });
     }
   }