chore(format): 撤销误入提交的整体重排，并关闭本仓库的格式化器

# 发生了什么

pi-lens 内置「安全格式化」：它会自动安装 biome 并对**编辑过的文件**跑
`biome format --write`。本机原先没有任何 biome 配置，于是 biome 用它自己的
默认值 —— tab 缩进 + 双引号 —— 把文件整体重写。

我在 19a3161 那次提交里用了 `git add -A`，把这批与功能无关的重排一起扫了进去：
约 7000 行改动散落在 20 个文件上，使那次提交无法审查，还掩盖了
server/internal/handler/permission.go 的一处删行（实为文件末尾空行，无代码丢失）。

# 为什么是「关掉」而不是「配置成我们的风格」

试过把缩进/引号/lineWidth 全部对齐本仓库习惯（biome.json + space/2/single/
lineWidth 120）：`biome format --write` 仍然改动 17 个文件。原因是本仓库从未按
biome 的规则排版过 —— 注释按语义换行、数组与调用按可读性手工折行，
这些无法由格式化器还原。也就是说只要格式化器开着，每次编辑都会产生与内容无关的
大面积 diff，把真正的改动埋掉。

因此 biome.jsonc 里 formatter 与 linter 都关闭：本仓库的静态检查由
tsc / go vet / tree-sitter / ast-grep 与各自测试套件承担，不引入会改动无关行的
自动修复。

（pi-lens 这一版把 format 服务的 enabled 硬编码为 true，没有配置开关，
所以只能在仓库侧用 biome 配置让它不动文件；已验证 `biome format --write`
对这些文件零改动。）

# 本提交内容

把 19a3161 里除「有意改动」外的 20 个文件还原到重排前的样子。
19a3161 中真正有意的改动是 deploy/install.sh 的扩展注册与
plugins/pi-mail-bridge/extension/index.ts 新文件，两者原样保留。

验证：Go 全量、三桥插件（320/362/409）、前端 196 全绿；
`biome format --write` 对还原后的文件零改动。

plugins/dsh-mail-bridge/lib/mail-session-id.d.ts

@@ -1,9 +1,3 @@
 export declare function dshSessionIdForMail(mailSessionID: any): string;
-export declare function matchesMailSession(
-	dshSessionId: any,
-	mailSessionID: any,
-): boolean;
-export declare function pickMailSession(
-	dshSessionIds: any[] | undefined,
-	mailSessionID: any,
-): string | undefined;
+export declare function matchesMailSession(dshSessionId: any, mailSessionID: any): boolean;
+export declare function pickMailSession(dshSessionIds: any[] | undefined, mailSessionID: any): string | undefined;

plugins/dsh-mail-bridge/lib/mail-session-id.js

@@ -24,7 +24,7 @@
 
 /** 首次尝试使用的 DSH 会话 id。 */
 export function dshSessionIdForMail(mailSessionID) {
-	return `mail-${String(mailSessionID ?? "")}`;
+  return `mail-${String(mailSessionID ?? '')}`;
 }
 
 /**
@@ -35,12 +35,12 @@ export function dshSessionIdForMail(mailSessionID) {
  * @returns {boolean}
  */
 export function matchesMailSession(dshSessionId, mailSessionID) {
-	const id = String(dshSessionId ?? "");
-	const base = dshSessionIdForMail(mailSessionID);
-	if (id === base) return true;
-	// 模型降级重试：mail-<id>-r1 / -r2 / …
-	const suffix = id.startsWith(`${base}-r`) ? id.slice(base.length + 2) : "";
-	return suffix.length > 0 && /^\d+$/.test(suffix);
+  const id = String(dshSessionId ?? '');
+  const base = dshSessionIdForMail(mailSessionID);
+  if (id === base) return true;
+  // 模型降级重试：mail-<id>-r1 / -r2 / …
+  const suffix = id.startsWith(`${base}-r`) ? id.slice(base.length + 2) : '';
+  return suffix.length > 0 && /^\d+$/.test(suffix);
 }
 
 /**
@@ -54,19 +54,19 @@ export function matchesMailSession(dshSessionId, mailSessionID) {
  * @returns {string|undefined}
  */
 export function pickMailSession(dshSessionIds, mailSessionID) {
-	const base = dshSessionIdForMail(mailSessionID);
-	const list = Array.isArray(dshSessionIds) ? dshSessionIds.map(String) : [];
-	if (list.includes(base)) return base;
+  const base = dshSessionIdForMail(mailSessionID);
+  const list = Array.isArray(dshSessionIds) ? dshSessionIds.map(String) : [];
+  if (list.includes(base)) return base;
 
-	let best;
-	let bestIndex = Infinity;
-	for (const id of list) {
-		if (!matchesMailSession(id, mailSessionID)) continue;
-		const idx = Number(id.slice(base.length + 2));
-		if (idx < bestIndex) {
-			bestIndex = idx;
-			best = id;
-		}
-	}
-	return best;
+  let best;
+  let bestIndex = Infinity;
+  for (const id of list) {
+    if (!matchesMailSession(id, mailSessionID)) continue;
+    const idx = Number(id.slice(base.length + 2));
+    if (idx < bestIndex) {
+      bestIndex = idx;
+      best = id;
+    }
+  }
+  return best;
 }

plugins/dsh-mail-bridge/lib/sse-client.d.ts

@@ -1,17 +1,17 @@
 export interface SseClientOptions {
-	authHeaders: () => Record<string, string>;
-	baseURL: string;
-	path: string;
-	onEvent: (evt: string, data: any) => void;
-	log?: (msg: string) => void;
+    authHeaders: () => Record<string, string>;
+    baseURL: string;
+    path: string;
+    onEvent: (evt: string, data: any) => void;
+    log?: (msg: string) => void;
 }
 export declare function createSSEClient(options: SseClientOptions): {
-	stop: () => void;
-	reset: () => void;
+    stop: () => void;
+    reset: () => void;
 };
 export declare function createFrameParser(): {
-	push: (chunk: string) => Array<{ event: string; data: string; id: string }>;
-	reset: () => void;
-	lastEventId: () => string;
-	setLastEventId: (id: string) => void;
+    push: (chunk: string) => Array<{ event: string; data: string; id: string }>;
+    reset: () => void;
+    lastEventId: () => string;
+    setLastEventId: (id: string) => void;
 };

plugins/dsh-mail-bridge/lib/user-question.d.ts

@@ -2,20 +2,12 @@ export declare function hasOptions(question: any): boolean;
 export declare function optionLabels(question: any): string[];
 export declare function questionTitle(question: any): string;
 export declare function flattenQuestions(questions: any[]): {
-	question: string;
-	options: string[];
-	context: string;
-	multiSelect: boolean;
+    question: string;
+    options: string[];
+    context: string;
+    multiSelect: boolean;
 };
-export declare function answersFromDecision(
-	questions: any[],
-	decision: string,
-	note?: string,
-): {
-	answers: Array<{ id: string; selected: string[]; custom?: string }>;
+export declare function answersFromDecision(questions: any[], decision: string, note?: string): {
+    answers: Array<{ id: string; selected: string[]; custom?: string }>;
 };
-export declare function isBlankAnswer(
-	questions: any[],
-	decision: string,
-	note?: string,
-): boolean;
+export declare function isBlankAnswer(questions: any[], decision: string, note?: string): boolean;