chore(template): clean-slate template snapshot from bb4a0c7

Curated, product-agnostic snapshot of the post-story-04 tree: demo
content deleted, auth-only reference feature, web-next shell, all gates
green. Product-specific docs, ADRs 027-029, PRDs/epics/archive, editor
library traces, and product naming are curated out; generic template
repairs (coverage provider devDeps, root test:coverage script, live
lint fixes, root-only release-please) are kept. See TEMPLATE.md for
provenance, curation list, and usage.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK

packages/core-eslint/rules/_workspace.test.js

@@ -0,0 +1,34 @@
+import { describe, it, expect } from "vitest";
+import path from "node:path";
+import os from "node:os";
+import fs from "node:fs";
+import { readWorkspacePackages } from "./_workspace.js";
+
+function writeWorkspaceYaml(contents) {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "workspace-"));
+  const filepath = path.join(dir, "pnpm-workspace.yaml");
+  fs.writeFileSync(filepath, contents);
+  return { dir, filepath };
+}
+
+describe("_workspace", () => {
+  it("returns the list of declared package globs", () => {
+    const { dir } = writeWorkspaceYaml(
+      `packages:
+  - "apps/*"
+  - "packages/*"
+`,
+    );
+    expect(readWorkspacePackages(dir)).toEqual(["apps/*", "packages/*"]);
+  });
+
+  it("returns [] when pnpm-workspace.yaml is missing", () => {
+    const dir = fs.mkdtempSync(path.join(os.tmpdir(), "workspace-"));
+    expect(readWorkspacePackages(dir)).toEqual([]);
+  });
+
+  it("returns [] when packages key is absent", () => {
+    const { dir } = writeWorkspaceYaml(`# empty\n`);
+    expect(readWorkspacePackages(dir)).toEqual([]);
+  });
+});