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/http/execute.ts

@@ -2,14 +2,13 @@ import { isError } from "es-toolkit";
 
 import type { CheckResult, RawTargetConfig } from "../../types";
 import type { CheckerContext, CheckerDefinition, CheckerValidationInput, ResolveContext } from "../types";
-import type { HttpTargetConfig, RawHttpExpectConfig, ResolvedHttpExpectConfig, ResolvedHttpTarget } from "./types";
+import type { HttpTargetConfig, ResolvedHttpExpectConfig, ResolvedHttpTarget } from "./types";
 
-import { checkContentExpectations, resolveContentExpectations } from "../../expect/content";
+import { checkContentExpectations } from "../../expect/content";
 import { errorFailure, mismatchFailure } from "../../expect/failure";
 import { checkHeaderExpectations } from "../../expect/headers";
-import { resolveKeyedExpectations } from "../../expect/keyed";
 import { checkStatusCode } from "../../expect/status";
-import { checkValueExpectation, displayValueExpectation, resolveValueExpectation } from "../../expect/value";
+import { checkValueExpectation, displayValueExpectation } from "../../expect/value";
 import { parseSize } from "../../utils";
 import { httpCheckerSchemas } from "./schema";
 import { validateHttpConfig } from "./validate";
@@ -179,13 +178,11 @@ export class HttpChecker implements CheckerDefinition<ResolvedHttpTarget> {
     const method = t.http.method ?? "GET";
     const maxBodyBytes = parseSize(t.http.maxBodyBytes ?? "100MB");
 
-    const rawExpect = target.expect as RawHttpExpectConfig | undefined;
-    const resolvedExpect: ResolvedHttpExpectConfig = rawExpect
+    const expect = target.expect as ResolvedHttpExpectConfig | undefined;
+    const resolvedExpect: ResolvedHttpExpectConfig = expect
       ? {
-          body: resolveContentExpectations(rawExpect.body),
-          durationMs: resolveValueExpectation(rawExpect.durationMs),
-          headers: resolveKeyedExpectations(rawExpect.headers),
-          status: rawExpect.status ?? [200],
+          ...expect,
+          status: expect.status ?? [200],
         }
       : { status: [200] };
 
@@ -205,7 +202,6 @@ export class HttpChecker implements CheckerDefinition<ResolvedHttpTarget> {
       id: t.id,
       intervalMs: context.defaultIntervalMs,
       name: t.name ?? null,
-      rawExpect,
       timeoutMs: context.defaultTimeoutMs,
       type: "http",
     } satisfies ResolvedHttpTarget;