feat: 重构配置生命周期为 Authoring/Normalized/Resolved 三层

将变量替换和 expect 简写展开统一放入 Normalized 阶段，
运行时 AJV 使用 Normalized schema，导出 schema 面向 Authoring Config。

主要变更：
- 新增 normalizer.ts 实现 normalizeAuthoringConfig()
- 拆分 Authoring/Normalized 双 schema，checker 接口支持 authoring/normalized 片段
- config-loader 流程：normalize → Normalized AJV → semantic → resolve
- validator 兼容层自动分派 raw/normalized expect 形态
- 删除 rawExpect，store.expect 列写入 null
- Authoring schema 对 integer/boolean/enum 字段接受变量引用
- 修复 DB/HTTP validate 入口守卫和 LLM options integer 变量引用
- 优化 compact() 避免 undefined 覆盖隐患
- 移除 content.ts 恒为 true 的前置条件
- 同步 5 个主规范并归档 change

src/server/checker/runner/cmd/schema.ts

@@ -3,14 +3,27 @@ import { Type } from "@sinclair/typebox";
 import type { CheckerSchemas } from "../types";
 
 import {
-  createRawContentExpectationsSchema,
-  createRawValueExpectationSchema,
+  createAuthoringContentExpectationsSchema,
+  createAuthoringValueExpectationSchema,
+  createNormalizedContentExpectationsSchema,
+  createNormalizedValueExpectationSchema,
   sizeSchema,
   stringMapSchema,
 } from "../../schema/fragments";
 
 export const commandCheckerSchemas: CheckerSchemas = {
-  config: Type.Object(
+  authoring: {
+    config: createCommandConfigSchema(),
+    expect: createCommandExpectSchema("authoring"),
+  },
+  normalized: {
+    config: createCommandConfigSchema(),
+    expect: createCommandExpectSchema("normalized"),
+  },
+};
+
+function createCommandConfigSchema() {
+  return Type.Object(
     {
       args: Type.Optional(Type.Array(Type.String())),
       cwd: Type.Optional(Type.String()),
@@ -19,14 +32,23 @@ export const commandCheckerSchemas: CheckerSchemas = {
       maxOutputBytes: Type.Optional(sizeSchema),
     },
     { additionalProperties: false },
-  ),
-  expect: Type.Object(
+  );
+}
+
+function createCommandExpectSchema(kind: "authoring" | "normalized") {
+  return Type.Object(
     {
-      durationMs: Type.Optional(createRawValueExpectationSchema()),
+      durationMs: Type.Optional(
+        kind === "authoring" ? createAuthoringValueExpectationSchema() : createNormalizedValueExpectationSchema(),
+      ),
       exitCode: Type.Optional(Type.Array(Type.Integer())),
-      stderr: Type.Optional(createRawContentExpectationsSchema()),
-      stdout: Type.Optional(createRawContentExpectationsSchema()),
+      stderr: Type.Optional(
+        kind === "authoring" ? createAuthoringContentExpectationsSchema() : createNormalizedContentExpectationsSchema(),
+      ),
+      stdout: Type.Optional(
+        kind === "authoring" ? createAuthoringContentExpectationsSchema() : createNormalizedContentExpectationsSchema(),
+      ),
     },
     { additionalProperties: false },
-  ),
-};
+  );
+}