feat: 引入运行时日志体系和存储配置，配置文件改为必填

- 新增 pino/pino-pretty/pino-roll 依赖，实现结构化日志（console pretty + file JSONL rolling）
- 新增 Logger 接口及 PinoLoggerWrapper/ConsoleFallbackLogger/NoopLogger/MemoryLogger 实现
- 新增 src/pino-roll.d.ts 类型声明
- 新增 server.storage.dataDir 配置（默认 ./data，相对路径基于配置文件目录）
- 新增 server.logging 配置（level/console/file/rotation，支持变量引用）
- 配置文件从可选改为必填，parseRuntimeArgs 无参数时抛错
- bootstrap 创建 logger、确保 dataDir、shutdown flush、失败路径 fallback
- startServer 接收 logger 并输出结构化监听日志
- ESLint 新增 no-restricted-syntax 禁止 src/server 直接 console.*（排除 logger.ts）
- 更新 config.example.yaml、README.md、DEVELOPMENT.md 同步配置和日志文档
- 完善测试覆盖：logger、config、schema、bootstrap 共 150 个测试通过

tests/server/config/schema.test.ts

@@ -37,7 +37,41 @@ describe("Authoring schema 校验", () => {
     expect(validate({ variables: { HOST: "127.0.0.1" } })).toBe(true);
   });
 
-  test("拒绝未知字段 server.host", () => {
+  test("接受 server.storage.dataDir", () => {
+    expect(validate({ server: { storage: { dataDir: "./data" } } })).toBe(true);
+  });
+
+  test("接受 server.logging 合法配置", () => {
+    expect(
+      validate({
+        server: {
+          logging: {
+            console: { level: "debug" },
+            file: {
+              level: "warn",
+              path: "/var/log/app.log",
+              rotation: { frequency: "daily", maxFiles: 14, size: "50MB" },
+            },
+            level: "info",
+          },
+        },
+      }),
+    ).toBe(true);
+  });
+
+  test("接受 server.logging.level 变量引用", () => {
+    expect(validate({ server: { logging: { level: "${LOG_LEVEL|info}" } } })).toBe(true);
+  });
+
+  test("拒绝 server.logging 中未知字段", () => {
+    expect(validate({ server: { logging: { unknownField: true } } })).toBe(false);
+  });
+
+  test("拒绝 server.logging.level 非法枚举值", () => {
+    expect(validate({ server: { logging: { level: "verbose" } } })).toBe(false);
+  });
+
+  test("拒绝 unknown 字段 server.host", () => {
     expect(validate({ server: { host: "127.0.0.1" } })).toBe(false);
     const issues = issuesFromAjvErrors(validate.errors ?? [], {});
     expect(issues.some((i) => i.code === "unknown-field")).toBe(true);
@@ -82,6 +116,28 @@ describe("Normalized schema 校验", () => {
     expect(validate({ server: { listen: { port: "${PORT|3000}" } } })).toBe(false);
   });
 
+  test("接受 server.storage.dataDir", () => {
+    expect(validate({ server: { storage: { dataDir: "./data" } } })).toBe(true);
+  });
+
+  test("接受 server.logging 合法配置", () => {
+    expect(
+      validate({
+        server: {
+          logging: {
+            console: { level: "debug" },
+            file: {
+              level: "warn",
+              path: "/var/log/app.log",
+              rotation: { frequency: "daily", maxFiles: 14, size: "50MB" },
+            },
+            level: "info",
+          },
+        },
+      }),
+    ).toBe(true);
+  });
+
   test("接受空对象", () => {
     expect(validate({})).toBe(true);
   });