refactor(mp): Phase 0 工程基础 — TS strict + ESLint + Prettier + 安全加固

- tsconfig: noImplicitAny:true + jsx:react-jsx + target:ES2018 + skipLibCheck
- 新增 eslint.config.mjs (flat config v9, no-explicit-any:error)
- 新增 .prettierrc + lint/format/typecheck 脚本
- prod: pure_funcs 添加 console.warn 防泄漏
- config: 生产环境强制清空 DEV_USER/DEV_PASS
- .env.production: 清空硬编码 tenant_id
- @types/node + @noble/ciphers 依赖

apps/miniprogram/.prettierrc

@@ -0,0 +1,8 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "trailingComma": "all",
+  "printWidth": 100,
+  "tabWidth": 2,
+  "arrowParens": "always"
+}