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-rtk-optimizer/src/config-store.ts

@@ -1,6 +1,6 @@
 import { existsSync, mkdirSync, readFileSync, renameSync, unlinkSync, writeFileSync } from "node:fs";
 import { dirname } from "node:path";
-import { CONFIG_PATH } from "./constants.js";
+import { resolveConfigPath } from "./constants.js";
 import { toRecord } from "./record-utils.js";
 import {
 	DEFAULT_RTK_INTEGRATION_CONFIG,
@@ -151,7 +151,7 @@ export function normalizeRtkIntegrationConfig(raw: unknown): RtkIntegrationConfi
 	};
 }
 
-export function ensureConfigExists(configPath = CONFIG_PATH): EnsureConfigResult {
+export function ensureConfigExists(configPath = resolveConfigPath()): EnsureConfigResult {
 	if (existsSync(configPath)) {
 		return { created: false };
 	}
@@ -169,7 +169,7 @@ export function ensureConfigExists(configPath = CONFIG_PATH): EnsureConfigResult
 	}
 }
 
-export function loadRtkIntegrationConfig(configPath = CONFIG_PATH): ConfigLoadResult {
+export function loadRtkIntegrationConfig(configPath = resolveConfigPath()): ConfigLoadResult {
 	if (!existsSync(configPath)) {
 		return { config: structuredClone(DEFAULT_RTK_INTEGRATION_CONFIG) };
 	}
@@ -189,7 +189,7 @@ export function loadRtkIntegrationConfig(configPath = CONFIG_PATH): ConfigLoadRe
 
 export function saveRtkIntegrationConfig(
 	config: RtkIntegrationConfig,
-	configPath = CONFIG_PATH,
+	configPath = resolveConfigPath(),
 ): ConfigSaveResult {
 	const normalized = normalizeRtkIntegrationConfig(config);
 	const tmpPath = `${configPath}.tmp`;
@@ -218,6 +218,6 @@ export function saveRtkIntegrationConfig(
 	}
 }
 
-export function getRtkIntegrationConfigPath(configPath = CONFIG_PATH): string {
+export function getRtkIntegrationConfigPath(configPath = resolveConfigPath()): string {
 	return configPath;
 }

pi-rtk-optimizer/src/constants.ts

@@ -1,6 +1,19 @@
-import { getAgentDir } from "@earendil-works/pi-coding-agent";
-import { join } from "node:path";
+import { fileURLToPath } from "node:url";
 
 export const EXTENSION_NAME = "pi-rtk-optimizer";
-export const CONFIG_DIR = join(getAgentDir(), "my-pi", "rtk-optimizer");
-export const CONFIG_PATH = join(CONFIG_DIR, "config.json");
+
+// Bundle-level `config/` is the single source of truth: the extension reads
+// (and /rtk save writes) `config/rtk-optimizer.json` inside the installed
+// bundle, resolved relative to this source file. Nothing is deployed to or
+// migrated from the agent directory.
+export const CONFIG_PATH = fileURLToPath(
+  new URL("../../config/rtk-optimizer.json", import.meta.url),
+);
+
+/**
+ * Resolve the effective config path. `PI_RTK_CONFIG_PATH` relocates the file
+ * (tests point it at a temp file; it is never a persisted config value).
+ */
+export function resolveConfigPath(): string {
+  return process.env.PI_RTK_CONFIG_PATH ?? CONFIG_PATH;
+}

pi-rtk-optimizer/src/index.test.ts

@@ -1,6 +1,7 @@
 import assert from "node:assert/strict";
-import { mkdirSync, writeFileSync } from "node:fs";
-import { dirname } from "node:path";
+import { mkdtempSync, writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
 
 import { mock, runTest } from "./test-helpers.test.ts";
 
@@ -37,12 +38,18 @@ const indexModule = await import("./index.ts");
 const { createBoundedNoticeTracker, shouldInjectSourceFilterTroubleshootingNote, injectGuidelineIntoPrompt } = indexModule;
 const rtkIntegrationExtension = indexModule.default;
 const { DEFAULT_RTK_INTEGRATION_CONFIG } = await import("./types.ts");
-const { CONFIG_PATH } = await import("./constants.ts");
+
+// Tests must never write the bundle's config/ file: relocate the config to a
+// throwaway temp file before any config-store call resolves its path.
+const TEST_CONFIG_PATH = join(
+	mkdtempSync(join(tmpdir(), "my-pi-rtk-test-")),
+	"rtk-optimizer.json",
+);
+process.env.PI_RTK_CONFIG_PATH = TEST_CONFIG_PATH;
 
 function writeTestConfig(commandRewritingEnabled: boolean): void {
-	mkdirSync(dirname(CONFIG_PATH), { recursive: true });
 	writeFileSync(
-		CONFIG_PATH,
+		TEST_CONFIG_PATH,
 		`${JSON.stringify({ ...DEFAULT_RTK_INTEGRATION_CONFIG, commandRewritingEnabled }, null, 2)}\n`,
 		"utf-8",
 	);