fix: scan files when absolute path contains dot-prefixed directory

fdir/picomatch ignores dot-prefixed path segments by default.
When the project lives inside a directory like .claude/worktrees/,
the VirtualFileSystem scan returns 0 files silently.

Author: Julien-R44

src/virtual_file_system.ts

@@ -82,6 +82,7 @@ export class VirtualFileSystem {
     this.#options = options ?? {}
     this.#picoMatchOptions = {
       cwd: this.#source,
+      dot: true,
     }
     this.#matcher = picomatch(this.#options.glob ?? DEFAULT_GLOB, this.#picoMatchOptions)
   }

tests/virtual_file_system.spec.ts

@@ -195,4 +195,23 @@ test.group('Virtual file system', () => {
     vfs.clear()
     assert.deepEqual(vfs.asList(), {})
   })
+
+  test('scan files when absolute path contains a dot-prefixed directory', async ({
+    fs,
+    assert,
+  }) => {
+    await fs.create('.claude/worktrees/my-app/app/controllers/users_controller.ts', '')
+    await fs.create('.claude/worktrees/my-app/app/controllers/posts_controller.ts', '')
+    await fs.create('.claude/worktrees/my-app/app/controllers/api/auth_controller.ts', '')
+
+    const source = string.toUnixSlash(join(fs.basePath, '.claude/worktrees/my-app/app/controllers'))
+    const vfs = new VirtualFileSystem(source)
+    await vfs.scan()
+
+    assert.deepEqual(vfs.asList(), {
+      'users_controller': join(source, 'users_controller.ts'),
+      'posts_controller': join(source, 'posts_controller.ts'),
+      'api/auth_controller': join(source, 'api/auth_controller.ts'),
+    })
+  })
 })