chore(ui-merge): objectui's prompt files move to the root .github/prompts/, and check:prompt-keys reads them there

VS Code reads prompt files from the workspace root's .github/prompts/, and
objectui's nested .github/ is being retired. The three *.prompt.md files
move unchanged.

check-prompt-component-keys derives its registry under the objectui root
and now reads the prompts under a separate root. promptsRoot() is the
repository root. analyze() takes it as an option, and a fixture tree
passes one directory for both roots, so the fixture cases are unchanged.
The CLI defaults to the repository root and has a --prompts-root flag.
The live-tree cases read the root prompts. Two new cases cover the move:
no prompt file is left under the objectui root, and the bare command,
as CI runs it, passes.

The markdown-test-inputs ledger drops the three prompt paths from the two
entries that declared them; they are no longer under the objectui tree.

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A6SEitNngAMugGbuJHWsDS

Author: claude

ui/.github/prompts/component.prompt.md .github/prompts/component.prompt.mdui/.github/prompts/component.prompt.md renamed to .github/prompts/component.prompt.md

@@ -23,6 +23,7 @@
  */
 
 import { describe, expect, it } from 'vitest';
+import { execFileSync } from 'node:child_process';
 import fs from 'node:fs';
 import os from 'node:os';
 import path from 'node:path';
@@ -39,12 +40,15 @@ import {
   partitionRegistry,
   placeholderSites,
   promptFiles,
+  promptsRoot,
   scanPromptKeys,
   scanPromptSections,
 } from '../check-prompt-component-keys.mjs';
 import { INDIRECT_REGISTRATIONS, deriveRegistryKeys } from '../check-doc-component-types.mjs';
 
 const repoRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../..');
+/** The repository root, whose `.github/prompts/` the live prompts sit in (objectstack#25712). */
+const livePrompts = promptsRoot(repoRoot);
 const SCRIPT = 'scripts/check-prompt-component-keys.mjs';
 
 interface Finding {
@@ -270,12 +274,29 @@ describe('the repository this gate guards', () => {
   });
 
   it('has a prompt surface with Keys bullets in it', () => {
-    expect(promptFiles(repoRoot).length).toBeGreaterThan(0);
-    expect(scanPromptKeys(repoRoot).bullets).toBeGreaterThan(0);
+    expect(promptFiles(livePrompts).length).toBeGreaterThan(0);
+    expect(scanPromptKeys(livePrompts).bullets).toBeGreaterThan(0);
+  });
+
+  it('reads the prompts at the repository root, and no copy is left under the objectui root', () => {
+    // objectstack#25712 moved them from `ui/.github/prompts/` to the root
+    // `.github/prompts/`, where VS Code reads prompt files. A second copy left
+    // behind would be the stale twin the next edit lands in.
+    expect(livePrompts).toBe(path.resolve(repoRoot, '..'));
+    expect(fs.existsSync(path.join(livePrompts, PROMPT_DIR))).toBe(true);
+    expect(promptFiles(repoRoot), 'a prompt file is still under the objectui root').toEqual([]);
   });
 
   it('passes — every key the prompts teach is answered by a real renderer', () => {
-    expect((analyze(repoRoot) as { findings: Finding[] }).findings).toEqual([]);
+    expect((analyze(repoRoot, { promptsRoot: livePrompts }) as { findings: Finding[] }).findings).toEqual([]);
+  });
+
+  it('passes as CI runs it — the bare command reads the repository root prompts', () => {
+    // The root `Lint UI` job runs `pnpm --dir ui run check:prompt-keys` with no
+    // arguments, so the CLI's own default is the code path that gates.
+    const out = execFileSync('node', [SCRIPT], { cwd: repoRoot, encoding: 'utf8' });
+    expect(out).toMatch(/^Scanned [1-9]\d* prompt file\(s\) under \.github\/prompts/);
+    expect(out).toContain('OK  Every key taught as available');
   });
 });
 
@@ -526,7 +547,7 @@ describe('`Protocol Placeholders:` is judged the other way round', () => {
 // ── 7. the live tree, under the widened model ────────────────────────────────
 
 describe('the prompt surface this gate now reads', () => {
-  const scan = () => scanPromptKeys(repoRoot) as {
+  const scan = () => scanPromptKeys(livePrompts) as {
     sites: { key: string; label: string; expect: string; scope: string }[];
     bullets: number;
     blocks: number;
@@ -572,7 +593,7 @@ describe('the prompt surface this gate now reads', () => {
     for (const tombstone of ['user:profile', 'ai:chat_window', 'view:kanban', 'view:gantt', 'view:map']) {
       expect(taught.has(tombstone), `${tombstone} must stay in prose, never in a judged list`).toBe(false);
     }
-    const prompt = fs.readFileSync(path.join(repoRoot, PROMPT_DIR, 'component.prompt.md'), 'utf8');
+    const prompt = fs.readFileSync(path.join(livePrompts, PROMPT_DIR, 'component.prompt.md'), 'utf8');
     for (const tombstone of ['user:profile', 'ai:chat_window', 'view:kanban']) {
       expect(prompt, `${tombstone} tombstone must still be written down`).toContain(`\`${tombstone}\``);
     }
@@ -682,7 +703,7 @@ describe('a `## N.` section\'s `### X.` headings must run A, B, C, … without a
 // ── 9. the live tree, under the letter-run pin ───────────────────────────────
 
 describe('the letter runs on the live prompt surface', () => {
-  const sections = () => scanPromptSections(repoRoot) as {
+  const sections = () => scanPromptSections(livePrompts) as {
     file: string;
     section: string;
     entries: { letter: string; line: number; text: string }[];

ui/.github/prompts/engine.prompt.md .github/prompts/engine.prompt.mdui/.github/prompts/engine.prompt.md renamed to .github/prompts/engine.prompt.md

@@ -13,6 +13,7 @@
  * (objectui#8929).
  *
  *   Run:  node scripts/check-prompt-component-keys.mjs   (`pnpm check:prompt-keys`)
+ *         [--root <objectui root>] [--prompts-root <dir holding .github/prompts>]
  *   Exit: 0 = every taught key resolves to a real component
  *         1 = a taught key resolves to nothing, or resolves only to the
  *             placeholder panel, or this gate's own derivation collapsed
@@ -136,9 +137,21 @@ import { closesFence, openFence } from './markdown-fence-scan.mjs';
 
 const scriptDir = dirname(fileURLToPath(import.meta.url));
 
-/** The instruction surface this gate reads. */
+/** The instruction surface this gate reads, under `promptsRoot()`. */
 export const PROMPT_DIR = '.github/prompts';
 
+/**
+ * Where `PROMPT_DIR` lives: the repository root, not the objectui root. VS Code
+ * reads prompt files from the workspace root's `.github/prompts/`, so they moved
+ * there from `ui/.github/prompts/` when objectui's nested `.github/` was retired
+ * (objectstack#25712). The registry the keys are judged against stays under the
+ * objectui root, which is why `analyze()` takes the two roots separately. A
+ * fixture tree that holds both passes one directory for both.
+ */
+export function promptsRoot(root = resolve(scriptDir, '..')) {
+  return resolve(root, '..');
+}
+
 /** The namespace `INDIRECT_REGISTRATIONS` gives the opt-in placeholder module. */
 export const PLACEHOLDER_NAMESPACE = 'protocol-placeholder';
 
@@ -475,8 +488,13 @@ export function letterRunFindings(runs) {
 /**
  * Judge the prompt surface. Throws when an input is missing, because a gate
  * that cannot see its inputs must not report a pass.
+ *
+ * `root` is the objectui root the registry is derived from; the prompts are read
+ * under `options.promptsRoot`, which defaults to `root` itself (a fixture tree).
+ * The real tree passes `promptsRoot()`.
  */
 export function analyze(root, options = {}) {
+  const prompts = options.promptsRoot ?? root;
   const registry = deriveRegistryKeys(root, options);
   if (registry.findings.length > 0) {
     const lines = registry.findings.map((f) => `  ${f.reason} at ${f.site}: ${f.detail}`);
@@ -507,7 +525,7 @@ export function analyze(root, options = {}) {
     throw new Error('the derivation produced no authorable keys — refusing to judge against an empty set.');
   }
 
-  const { sites: taught, bullets, blocks, emptyBlocks } = scanPromptKeys(root);
+  const { sites: taught, bullets, blocks, emptyBlocks } = scanPromptKeys(prompts);
   if (bullets === 0) {
     throw new Error(
       `no \`**Keys:**\` bullet was found under ${PROMPT_DIR}. The surface this gate reads is gone or ` +
@@ -523,7 +541,7 @@ export function analyze(root, options = {}) {
     );
   }
 
-  const sections = scanPromptSections(root);
+  const sections = scanPromptSections(prompts);
   const runs = lettered(sections);
   if (sections.length > 0 && runs.length === 0) {
     throw new Error(
@@ -549,7 +567,7 @@ export function analyze(root, options = {}) {
   return {
     findings,
     counters: {
-      promptFiles: promptFiles(root).length,
+      promptFiles: promptFiles(prompts).length,
       bullets,
       blocks,
       keys: taught.length,
@@ -594,10 +612,12 @@ if (isEntrypoint(import.meta.url)) {
     return index > -1 ? process.argv[index + 1] : null;
   };
   const root = resolve(argOf('--root') ?? resolve(scriptDir, '..'));
+  // A `--root` fixture tree holds its own prompts unless told otherwise.
+  const prompts = resolve(argOf('--prompts-root') ?? (argOf('--root') ? root : promptsRoot()));
 
   let result;
   try {
-    result = analyze(root);
+    result = analyze(root, { promptsRoot: prompts });
   } catch (error) {
     console.error(
       `x  ${error.message}\n\n` +

ui/.github/prompts/ui-library.prompt.md .github/prompts/ui-library.prompt.mdui/.github/prompts/ui-library.prompt.md renamed to .github/prompts/ui-library.prompt.md

@@ -962,7 +962,7 @@ export const ADJUDICATED = new Map([
   [
     'scripts/__tests__/ci-cd-pipeline-doc.test.ts',
     {
-      reads: ['.github/prompts/component.prompt.md', '.github/prompts/engine.prompt.md', '.github/prompts/ui-library.prompt.md', 'CONTRIBUTING.md', 'content/docs/guide/ci-cd-pipeline.md'],
+      reads: ['CONTRIBUTING.md', 'content/docs/guide/ci-cd-pipeline.md'],
       walker: 'not-markdown: `.github/workflows/*.yml`',
     },
   ],
@@ -1004,7 +1004,7 @@ export const ADJUDICATED = new Map([
   [
     'scripts/__tests__/dollar-dialect-alias-census.test.ts',
     {
-      reads: ['./*', '.changeset/**', '.claude/skills/**', '.github/prompts/component.prompt.md', '.github/prompts/engine.prompt.md', '.github/prompts/ui-library.prompt.md', 'apps/**', 'content/docs/**', 'docs/ARCHITECTURE.md', 'docs/CONSOLE-STREAMLINING-SUMMARY.md', 'docs/adr/**', 'docs/audits/**', 'examples/**', 'packages/**', 'patches/README.md', 'skills/objectui/**'],
+      reads: ['./*', '.changeset/**', '.claude/skills/**', 'apps/**', 'content/docs/**', 'docs/ARCHITECTURE.md', 'docs/CONSOLE-STREAMLINING-SUMMARY.md', 'docs/adr/**', 'docs/audits/**', 'examples/**', 'packages/**', 'patches/README.md', 'skills/objectui/**'],
     },
   ],
   [