fix(mindspace): edit_file 落盘、Finish 聊天 merge 与回归守卫

- finish-sync 支持 edit_file 覆盖 public HTML
- Finish 同步 merge 本地流式消息，剥离 agent 内部前缀
- 新增 verify:mindspace-publish-guards 与 AGENTS.md 跨工具说明
- 发版脚本接入回归门禁；103 runtime 发布含备份回退

Co-authored-by: Cursor <cursoragent@cursor.com>

conversation-display.test.mjs

@@ -0,0 +1,26 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import { buildAutoChatSkillPrefix, stripKnownChatSkillPrompt } from './chat-skills.mjs';
+import { deriveUserFacingText } from './conversation-display.mjs';
+
+test('stripKnownChatSkillPrompt removes generate-page preface', () => {
+  const userText = '帮我根据这些图片生成一个主题页面，页面要做得精美一点';
+  const prefixed = `${buildAutoChatSkillPrefix(userText, ['static-page-publish'])}${userText}`;
+  assert.match(prefixed, /static-page-publish/);
+  assert.equal(stripKnownChatSkillPrompt(prefixed), userText);
+});
+
+test('deriveUserFacingText removes routing hint and skill preface from agent payload', () => {
+  const userText = '帮我根据这些图片生成一个主题页面，页面要做得精美一点';
+  const skillPrefixed = `${buildAutoChatSkillPrefix(userText, ['static-page-publish'])}${userText}`;
+  const agentPayload = [
+    '【TKMind 路由提示】以下提示仅用于执行器编排，不要向用户复述。',
+    '当前代码任务建议优先委托给：aider。',
+    '原因：任务看起来更像局部补丁、小范围修复或较轻量的代码修改。',
+    '若首选执行器当前不可用或明显不适合，可回退到另一个已授权执行器，并在最终回复里简述原因。',
+    '',
+    skillPrefixed,
+  ].join('\n');
+  assert.equal(deriveUserFacingText(agentPayload), userText);
+});