feat(student-bff): 完整实现 student-bff 聚合层

包含 src 全部实现、Dockerfile、shared-ts/bff 包等

packages/shared-ts/package.json

@@ -7,6 +7,10 @@
     "./outbox": {
       "types": "./src/outbox/index.ts",
       "default": "./src/outbox/index.ts"
+    },
+    "./bff": {
+      "types": "./src/bff/index.ts",
+      "default": "./src/bff/index.ts"
     }
   },
   "scripts": {
@@ -14,6 +18,8 @@
     "typecheck": "tsc --noEmit"
   },
   "dependencies": {
+    "@grpc/grpc-js": "^1.12.0",
+    "@grpc/proto-loader": "^0.7.13",
     "@nestjs/common": "^10.4.0",
     "@nestjs/core": "^10.4.0",
     "@paralleldrive/cuid2": "^2.2.2",
@@ -25,6 +31,7 @@
   },
   "devDependencies": {
     "@types/node": "^22.0.0",
+    "pino-pretty": "^11.2.0",
     "typescript": "^5.6.0"
   }
 }