refactor: notify/footer 持久配置收编到 config/，chrome bridge 地址固定

仓库规则要求 config/ 为唯一配置来源、不以环境变量作持久默认值：
- pi-notify 改读 config/pi-notify.json（逐字段校验回退，复用原 parsers 钳制）
- pi-minimal-footer 改读 config/pi-minimal-footer.json
- pi-chrome 移除 PI_CHROME_BRIDGE_HOST/PORT，固定 127.0.0.1:17318
  （浏览器端 service_worker.js 硬编码同一地址，单侧可配只会断连）

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

pi-notify/tests/config.test.ts

@@ -1,28 +1,18 @@
 import assert from "node:assert/strict";
-import { afterEach, describe, it } from "node:test";
+import { describe, it } from "node:test";
 import type { ExtensionContext } from "@earendil-works/pi-coding-agent";
 import { getConfig, shouldNotify } from "../src/config.ts";
+import type { NotifySettings } from "../src/settings.ts";
 
-const envKeys = [
-  "PI_NOTIFY_ENABLED",
-  "PI_NOTIFY_TITLE",
-  "PI_NOTIFY_BODY",
-  "PI_NOTIFY_MESSAGE_SOURCE",
-  "PI_NOTIFY_MESSAGE_MAX",
-  "PI_NOTIFY_MIN_SECONDS",
-  "PI_NOTIFY_VISIBILITY",
-  "PI_NOTIFY_ACTION",
-  "PI_NOTIFY_SOUND_CMD",
-] as const;
-
-const savedEnv = new Map(envKeys.map((key) => [key, process.env[key]]));
-
-afterEach(() => {
-  for (const key of envKeys) {
-    const value = savedEnv.get(key);
-    if (value === undefined) delete process.env[key];
-    else process.env[key] = value;
-  }
+const defaultSettings = (): NotifySettings => ({
+  enabled: true,
+  title: "π - {project}",
+  body: "{message}",
+  messageSource: "assistant",
+  messageMax: 80,
+  minDurationMs: 3_000,
+  visibility: "always",
+  action: "focus",
 });
 
 function context(): ExtensionContext {
@@ -45,6 +35,7 @@ describe("config", () => {
       ],
       runtime,
       5_000,
+      defaultSettings(),
     );
 
     assert.deepEqual(config, {
@@ -62,19 +53,20 @@ describe("config", () => {
   });
 
   it("supports privacy, threshold, focus, and status template settings", () => {
-    process.env.PI_NOTIFY_ENABLED = "off";
-    process.env.PI_NOTIFY_TITLE = "{status_icon} {status} {tool_error_count}";
-    process.env.PI_NOTIFY_BODY = "{message}";
-    process.env.PI_NOTIFY_MESSAGE_SOURCE = "none";
-    process.env.PI_NOTIFY_MIN_SECONDS = "10.5";
-    process.env.PI_NOTIFY_VISIBILITY = "invisible";
-    process.env.PI_NOTIFY_ACTION = "none";
-    process.env.PI_NOTIFY_SOUND_CMD = " say done ";
-
     const config = getConfig(context(), 1_000, [{ role: "assistant", content: "secret" }], {
       notificationId: "pi-session",
       toolErrorCount: 2,
-    }, 2_000);
+    }, 2_000, {
+      ...defaultSettings(),
+      enabled: false,
+      title: "{status_icon} {status} {tool_error_count}",
+      body: "{message}",
+      messageSource: "none",
+      minDurationMs: 10_500,
+      visibility: "invisible",
+      action: "none",
+      soundCommand: "say done",
+    });
 
     assert.equal(config.title, "⚠ ready · 2 tool errors 2");
     assert.equal(config.body, "Ready for input");
@@ -88,15 +80,13 @@ describe("config", () => {
   });
 
   it("applies selected-message truncation and a session override", () => {
-    process.env.PI_NOTIFY_MESSAGE_SOURCE = "user";
-    process.env.PI_NOTIFY_MESSAGE_MAX = "5";
-    process.env.PI_NOTIFY_MIN_SECONDS = "0";
     const config = getConfig(
       context(),
       1_000,
       [{ role: "user", content: "hello world" }],
       runtime,
       2_000,
+      { ...defaultSettings(), messageSource: "user", messageMax: 5, minDurationMs: 0 },
     );
 
     assert.equal(config.body, "hell…");

pi-notify/tests/index.test.ts

@@ -1,23 +1,24 @@
 import assert from "node:assert/strict";
-import { afterEach, describe, it } from "node:test";
+import { describe, it } from "node:test";
 import type { ExtensionAPI, ExtensionContext } from "@earendil-works/pi-coding-agent";
 import { createPiNotifyExtension } from "../src/index.ts";
+import type { NotifySettings } from "../src/settings.ts";
 import type { NotifyConfig } from "../src/types.ts";
 
 type Handler = (...args: any[]) => any;
 
-const savedEnv = new Map(
-  ["PI_NOTIFY_MIN_SECONDS", "PI_NOTIFY_MESSAGE_SOURCE"].map((key) => [key, process.env[key]]),
-);
+const DEFAULT_SETTINGS: NotifySettings = {
+  enabled: true,
+  title: "π - {project}",
+  body: "{message}",
+  messageSource: "assistant",
+  messageMax: 80,
+  minDurationMs: 3_000,
+  visibility: "always",
+  action: "focus",
+};
 
-afterEach(() => {
-  for (const [key, value] of savedEnv) {
-    if (value === undefined) delete process.env[key];
-    else process.env[key] = value;
-  }
-});
-
-function harness(mode: ExtensionContext["mode"] = "tui") {
+function harness(mode: ExtensionContext["mode"] = "tui", settings: Partial<NotifySettings> = {}) {
   const handlers = new Map<string, Handler>();
   const eventHandlers = new Map<string, Handler>();
   const commands = new Map<string, { handler: Handler }>();
@@ -45,6 +46,7 @@ function harness(mode: ExtensionContext["mode"] = "tui") {
     createNotificationId: () => "pi-session-test",
     notify: (config) => notifications.push(config),
     getBackend: () => "kitty",
+    settings: { ...DEFAULT_SETTINGS, ...settings },
   })(pi);
 
   const ctx = {
@@ -93,9 +95,8 @@ describe("pi-notify extension", () => {
   });
 
   it("does not write terminal notifications in RPC or non-interactive modes", async () => {
-    process.env.PI_NOTIFY_MIN_SECONDS = "0";
     for (const mode of ["rpc", "json", "print"] as const) {
-      const h = harness(mode);
+      const h = harness(mode, { minDurationMs: 0 });
       await h.handlers.get("session_start")?.({}, h.ctx);
       await h.handlers.get("agent_start")?.({}, h.ctx);
       await h.handlers.get("agent_settled")?.({}, h.ctx);
@@ -123,8 +124,7 @@ describe("pi-notify extension", () => {
   });
 
   it("notifies immediately when permission confirmation needs human input", async () => {
-    process.env.PI_NOTIFY_MIN_SECONDS = "3600";
-    const h = harness();
+    const h = harness("tui", { minDurationMs: 3_600_000 });
     await h.handlers.get("session_start")?.({}, h.ctx);
 
     h.eventHandlers.get("permissions:ui_prompt")?.({
@@ -144,8 +144,7 @@ describe("pi-notify extension", () => {
   });
 
   it("keeps permission details private and honors the session off override", async () => {
-    process.env.PI_NOTIFY_MESSAGE_SOURCE = "none";
-    const h = harness();
+    const h = harness("tui", { messageSource: "none" });
     await h.handlers.get("session_start")?.({}, h.ctx);
     const prompt = { requestId: "perm-secret", surface: "bash", value: "cat private-file" };
 

pi-notify/tests/settings.test.ts

@@ -0,0 +1,107 @@
+import assert from "node:assert/strict";
+import { mkdtempSync, rmSync, writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { afterEach, describe, it } from "node:test";
+import { readNotifySettings } from "../src/settings.ts";
+
+let tempDir: string | undefined;
+
+afterEach(() => {
+  if (tempDir) {
+    rmSync(tempDir, { recursive: true, force: true });
+    tempDir = undefined;
+  }
+});
+
+function configPath(contents: string): string {
+  tempDir = mkdtempSync(join(tmpdir(), "pi-notify-settings-"));
+  const path = join(tempDir, "pi-notify.json");
+  writeFileSync(path, contents);
+  return path;
+}
+
+const expectedDefaults = {
+  enabled: true,
+  title: "π - {project}",
+  body: "{message}",
+  messageSource: "assistant",
+  messageMax: 80,
+  minDurationMs: 3_000,
+  visibility: "always",
+  action: "focus",
+  soundCommand: undefined,
+};
+
+describe("readNotifySettings", () => {
+  it("returns all defaults when the config file is missing", () => {
+    assert.deepEqual(readNotifySettings("/does/not/exist/pi-notify.json"), expectedDefaults);
+  });
+
+  it("returns all defaults for malformed or non-object JSON", () => {
+    for (const contents of ["not json", "[1,2]", "\"hi\"", "42"]) {
+      assert.deepEqual(readNotifySettings(configPath(contents)), expectedDefaults, contents);
+    }
+  });
+
+  it("adopts valid values from the config file", () => {
+    const settings = readNotifySettings(configPath(JSON.stringify({
+      enabled: false,
+      title: "π {status_icon} · {project}",
+      body: "{status}",
+      messageSource: "none",
+      messageMax: 120,
+      minSeconds: 30,
+      visibility: "unfocused",
+      action: "none",
+      soundCommand: "afplay /done.aiff",
+    })));
+
+    assert.deepEqual(settings, {
+      enabled: false,
+      title: "π {status_icon} · {project}",
+      body: "{status}",
+      messageSource: "none",
+      messageMax: 120,
+      minDurationMs: 30_000,
+      visibility: "unfocused",
+      action: "none",
+      soundCommand: "afplay /done.aiff",
+    });
+  });
+
+  it("falls back per-field when values have the wrong type or value", () => {
+    const settings = readNotifySettings(configPath(JSON.stringify({
+      enabled: {},
+      title: "",
+      body: null,
+      messageSource: ["assistant"],
+      messageMax: "bogus",
+      minSeconds: "bogus",
+      visibility: "bogus",
+      action: {},
+    })));
+
+    assert.deepEqual(settings, expectedDefaults);
+  });
+
+  it("clamps messageMax and minSeconds to their bounded ranges", () => {
+    const settings = readNotifySettings(configPath(JSON.stringify({ messageMax: 999, minSeconds: 4000 })));
+    assert.equal(settings.messageMax, 500);
+    assert.equal(settings.minDurationMs, 3_600_000);
+
+    const floor = readNotifySettings(configPath(JSON.stringify({ messageMax: -5, minSeconds: -1 })));
+    assert.equal(floor.messageMax, 0);
+    assert.equal(floor.minDurationMs, 0);
+  });
+
+  it("treats an empty or whitespace soundCommand as absent and trims values", () => {
+    for (const value of ["", "   "]) {
+      assert.equal(readNotifySettings(configPath(JSON.stringify({ soundCommand: value }))).soundCommand, undefined);
+    }
+    assert.equal(
+      readNotifySettings(configPath(JSON.stringify({ soundCommand: "  afplay /done.aiff  " }))).soundCommand,
+      "afplay /done.aiff",
+    );
+  });
+});