邮件契约修复:地址校验保持严格 z.email(),改测试夹具而非放宽生产 schema

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TM4kUBvekALu9qqmp7D3wr

packages/contracts/src/mail.ts

@@ -55,8 +55,7 @@ const accountCommon = {
 export const mailAccountInputSchema = z.discriminatedUnion('kind', [
   z.object({
     kind: z.literal('imap-smtp'),
-    /** zod 默认 email 正则要求顶级域至少两个字母(`.c` 会被拒);邮箱地址理应更宽 —— 改用 html5Email 正则 */
-    address: z.email({ pattern: z.regexes.html5Email }),
+    address: z.email(),
     ...accountCommon,
     settings: imapSmtpSettingsSchema.prefault({}),
     /** 只写不读:缺省 = 不改(与 LLM 密钥同款) */
@@ -179,9 +178,9 @@ export const mailSendInputSchema = z.object({
   accountId: z.string().optional(),
   /** 指定发件地址(channel 用):必须对上一个已启用账号,不静默回落 */
   from: z.string().optional(),
-  to: z.array(z.email({ pattern: z.regexes.html5Email })).min(1),
-  cc: z.array(z.email({ pattern: z.regexes.html5Email })).default([]),
-  bcc: z.array(z.email({ pattern: z.regexes.html5Email })).default([]),
+  to: z.array(z.email()).min(1),
+  cc: z.array(z.email()).default([]),
+  bcc: z.array(z.email()).default([]),
   subject: z.string().min(1),
   text: z.string().optional(),
   html: z.string().optional(),