Add server, routes, views, CLI, CSS, and integration tests

- Server factory with Fastify plugins (JWT, cookie, multipart, formbody, static)
- Auth middleware: requireAuth preHandler (401 for API, redirect for pages)
- Auth API routes: POST /api/v1/auth/login, POST /api/v1/auth/logout
- File API routes: GET/POST /api/v1/files, DELETE /api/v1/files/:id
- Page routes: /, /login, /logout, /upload, /files, /files/:id/delete, /f/:id, /f/:id/raw
- HTML views: layout, login, upload, file-list, file-view, not-found
- CLI register-user script
- public/style.css dark theme
- Test helpers: createTestApp, loginAs, buildMultipart
- Integration tests for auth API, file API, and page routes (51 tests passing)
- Update CLAUDE.md with red/green TDD and commit instructions

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/views/file-list.ts

@@ -0,0 +1,38 @@
+import { layout, escHtml } from './layout.ts';
+import type { FileRow } from '../db/files.ts';
+
+export function fileListPage(files: FileRow[], baseUrl: string): string {
+  const rows = files.length === 0
+    ? '<tr><td colspan="5">No files yet. <a href="/upload">Upload one.</a></td></tr>'
+    : files.map((f) => `
+        <tr>
+          <td><a href="/f/${escHtml(f.id)}">${escHtml(f.original_name)}</a></td>
+          <td>${escHtml(f.mime_type)}</td>
+          <td>${formatBytes(f.size)}</td>
+          <td>${escHtml(f.created_at)}</td>
+          <td>
+            <form method="POST" action="/files/${escHtml(f.id)}/delete" style="display:inline">
+              <button type="submit" class="danger">Delete</button>
+            </form>
+          </td>
+        </tr>`).join('');
+
+  return layout('My files', `
+    <h1>My files</h1>
+    <p><a href="/upload">Upload new file</a></p>
+    <table>
+      <thead>
+        <tr>
+          <th>Name</th><th>Type</th><th>Size</th><th>Uploaded</th><th></th>
+        </tr>
+      </thead>
+      <tbody>${rows}</tbody>
+    </table>
+  `, { authed: true });
+}
+
+function formatBytes(bytes: number): string {
+  if (bytes < 1024) return `${bytes} B`;
+  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
+  return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
+}