feat: 组合包配置以包内 config/ 为唯一来源，并新增受保护写入人工审批

配置统一：权限策略、硬防御、Tool Search、提示词封面以及新迁入的
RTK、pi-compaction、pi-worktree、pi-hermes-memory 配置全部由扩展
直接读取已安装组合包内的 config/，pi install / pi update 即完成部署；
删除 rebuild-bundle-config.mjs 与 bundle-manifest.json，my-pi/ 只保留
日志与缓存。update.sh 成功升级后将默认 git 来源的已安装副本
reset 回发布版本。AGENTS.md 新增「组合包配置原则」。

脚本整合：search_config.sh / ssh_config.sh 合并为 configure.sh
search|ssh；install.sh / update.sh 共享函数抽到 scripts/lib.sh，远程
安装器改为先下载到临时文件再执行，下载失败可被检测。

权限：hard-guards 新增 protectedWrites，写入 Pi 凭据/设置、已安装
组合包与扩展目录、pi-ssh 凭据库时一律人工确认（跳过 AutoReview、
yolo 与 Session grant，无 UI 时拒绝）；放行 ls、LSP 查询、ctx 只读、
web_search、Chrome 只读与 git 只读命令，skill_manage 改为 ask。

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

pi-tool-search/test/config.test.ts

@@ -21,10 +21,12 @@ async function withAgentDir(run: (agentDir: string) => Promise<void>): Promise<v
   }
 }
 
-async function writeConfig(agentDir: string, content: string): Promise<void> {
-  const path = getToolSearchConfigPath(agentDir);
+/** Write a config file inside the temp dir; never touches the repo config/. */
+async function writeConfig(agentDir: string, content: string): Promise<string> {
+  const path = join(agentDir, "config.json");
   await mkdir(dirname(path), { recursive: true });
   await writeFile(path, content, "utf8");
+  return path;
 }
 
 test("bundle defaults keep the committed tool list", () => {
@@ -52,12 +54,9 @@ test("bundle defaults keep the committed tool list", () => {
   });
 });
 
-test("config and catalog live under the bundle-owned my-pi tree", async () => {
+test("config resolves to the bundle config dir; catalog stays under my-pi", async () => {
   await withAgentDir(async (agentDir) => {
-    assert.equal(
-      getToolSearchConfigPath(agentDir),
-      join(agentDir, "my-pi", "tool-search", "config.json"),
-    );
+    assert.match(getToolSearchConfigPath(), /config[/\\]tool-search\.json$/);
     assert.equal(
       getToolSearchCatalogPath(agentDir),
       join(agentDir, "my-pi", "tool-search", "catalog-v1.json"),
@@ -67,13 +66,16 @@ test("config and catalog live under the bundle-owned my-pi tree", async () => {
 
 test("falls back to bundle defaults when the config file is absent or invalid", async () => {
   await withAgentDir(async (agentDir) => {
-    assert.deepEqual(readToolSearchConfig(agentDir), bundleFallbackConfig());
+    assert.deepEqual(
+      readToolSearchConfig(join(agentDir, "missing.json")),
+      bundleFallbackConfig(),
+    );
 
-    await writeConfig(agentDir, "{not-json");
-    assert.deepEqual(readToolSearchConfig(agentDir), bundleFallbackConfig());
+    const badJson = await writeConfig(agentDir, "{not-json");
+    assert.deepEqual(readToolSearchConfig(badJson), bundleFallbackConfig());
 
-    await writeConfig(agentDir, '"a string, not an object"');
-    assert.deepEqual(readToolSearchConfig(agentDir), bundleFallbackConfig());
+    const nonObject = await writeConfig(agentDir, '"a string, not an object"');
+    assert.deepEqual(readToolSearchConfig(nonObject), bundleFallbackConfig());
   });
 });
 
@@ -87,8 +89,8 @@ test("normalizes invalid runtime values without overwriting the file", async ()
       maxDynamicTools: -1,
       groupOverrides: { web: ["search", 2], empty: [] },
     });
-    await writeConfig(agentDir, original);
-    assert.deepEqual(readToolSearchConfig(agentDir), {
+    const path = await writeConfig(agentDir, original);
+    assert.deepEqual(readToolSearchConfig(path), {
       alwaysEnabled: ["one"],
       showToolSearchFooterStatus: false,
       maxActiveGroups: 5,
@@ -96,7 +98,7 @@ test("normalizes invalid runtime values without overwriting the file", async ()
       maxDynamicTools: 28,
       groupOverrides: { web: ["search"] },
     });
-    assert.equal(await readFile(getToolSearchConfigPath(agentDir), "utf8"), original);
+    assert.equal(await readFile(path, "utf8"), original);
   });
 });
 
@@ -110,8 +112,8 @@ test("reads an explicit configuration verbatim", async () => {
       maxDynamicTools: 20,
       groupOverrides: { custom: ["some_tool"] },
     }, null, 2)}\n`;
-    await writeConfig(agentDir, original);
-    assert.deepEqual(readToolSearchConfig(agentDir), {
+    const path = await writeConfig(agentDir, original);
+    assert.deepEqual(readToolSearchConfig(path), {
       alwaysEnabled: ["codegraph_explore", "lsp_diagnostics"],
       showToolSearchFooterStatus: true,
       maxActiveGroups: 3,
@@ -119,6 +121,6 @@ test("reads an explicit configuration verbatim", async () => {
       maxDynamicTools: 20,
       groupOverrides: { custom: ["some_tool"] },
     });
-    assert.equal(await readFile(getToolSearchConfigPath(agentDir), "utf8"), original);
+    assert.equal(await readFile(path, "utf8"), original);
   });
 });