mail 模块登记为 L1;批准 imapflow / nodemailer / postal-mime 三个依赖(设计稿 §2)

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

apps/api/package.json

@@ -25,12 +25,16 @@
     "ajv-formats": "^3.0.1",
     "drizzle-orm": "^0.45.2",
     "hono": "^4.12.32",
+    "imapflow": "^1.7.6",
     "jose": "^5.10.0",
+    "nodemailer": "^8.0.11",
     "pg": "^8.22.0",
     "pg-boss": "^12.26.3",
+    "postal-mime": "^3.0.0",
     "zod": "^4.4.3"
   },
   "devDependencies": {
+    "@types/nodemailer": "^8.0.1",
     "@types/pg": "^8.20.0"
   }
 }