fix: show empty work preview without invoking the Agent

electron/coding-runtime/work-presence.ts

@@ -0,0 +1,48 @@
+import { lstat, opendir, realpath } from 'node:fs/promises';
+import path from 'node:path';
+
+export type WorkPresence = 'empty' | 'possible' | 'unknown';
+
+// Only prove absence. Unknown project formats must retain the existing startup
+// path; a missing root index.html or an offline server does not prove emptiness.
+const IGNORED_DIRECTORIES = new Set(['.git', '.makelore', '.vscode', '.idea', 'node_modules']);
+const IGNORED_FILES = new Set(['.ds_store', 'thumbs.db', '.git', '.gitignore', '.gitattributes', '.editorconfig', 'license', 'readme']);
+const MATERIAL_EXTENSIONS = new Set([
+  '.md', '.txt', '.pdf', '.doc', '.docx', '.ppt', '.pptx', '.xls', '.xlsx', '.csv',
+  '.png', '.jpg', '.jpeg', '.gif', '.webp', '.svg', '.ico', '.bmp', '.avif',
+  '.mp3', '.wav', '.ogg', '.m4a', '.mp4', '.webm', '.mov',
+  '.woff', '.woff2', '.ttf', '.otf',
+]);
+const MAX_ENTRIES = 2_000;
+const MAX_DEPTH = 8;
+
+/** Inspect names/types only, without reading contents, following links or running a model. */
+export async function inspectWorkPresence(projectPath: string): Promise<WorkPresence> {
+  try {
+    const root = await realpath(projectPath);
+    const pending = [{ directory: root, depth: 0 }];
+    let visited = 0;
+    while (pending.length) {
+      const { directory, depth } = pending.pop()!;
+      // Revalidate queued directories in case a project edit replaced one with a link.
+      if ((await lstat(directory)).isSymbolicLink() || await realpath(directory) !== directory) return 'unknown';
+      const entries = await opendir(directory);
+      for await (const entry of entries) {
+        if (++visited > MAX_ENTRIES) return 'unknown';
+        const name = entry.name.toLowerCase();
+        if (entry.isSymbolicLink()) return 'unknown';
+        if (entry.isDirectory()) {
+          if (IGNORED_DIRECTORIES.has(entry.name) || (depth === 0 && entry.name === 'knowledge')) continue;
+          if (depth >= MAX_DEPTH) return 'unknown';
+          pending.push({ directory: path.join(directory, entry.name), depth: depth + 1 });
+        } else if (entry.isFile()) {
+          if (!IGNORED_FILES.has(name) && !MATERIAL_EXTENSIONS.has(path.extname(name))) return 'possible';
+        } else return 'unknown';
+      }
+    }
+    return 'empty';
+  } catch {
+    // Unreadable, removed or changing directories are not evidence of no work.
+    return 'unknown';
+  }
+}