refactor: expect 类型模型重构，Raw/Resolved 双层分离与断言基础设施内聚

- 重命名 ContentRules→ContentExpectations, KeyValueExpect→KeyedExpectations
- 新增 Raw/Resolved 双层模型：resolve 阶段物化为执行计划，store 持久化 Raw 快照
- HTTP body 按需读取：status/headers 失败或无 body expectation 时不读取 body
- 新增 displayValueExpectation() 解包 failure.expected 用户可读展示
- 修复 checkEarlyTimeout 独立 lte/lt 检查，修复 KeyedExpectations JSON Schema
- 新增 expect/value.ts(resolve/check/display)、keyed.ts、content.ts、headers.ts、status.ts
- 删除旧 normalize.ts/matcher.ts/validate-matcher.ts/key-value.ts
- 更新 DEVELOPMENT.md：expect 五层管线表、displayValueExpectation、1.7↔1.10 交叉引用
- 同步 13 个 main specs，归档 refactor-expect-type-model 变更（62/62 tasks）

tests/server/checker/runner/tcp/execute.test.ts

@@ -1,8 +1,14 @@
 import { afterAll, beforeAll, describe, expect, test } from "bun:test";
 
-import type { ResolvedTcpTarget } from "../../../../../src/server/checker/runner/tcp/types";
+import type {
+  RawTcpExpectConfig,
+  ResolvedTcpExpectConfig,
+  ResolvedTcpTarget,
+} from "../../../../../src/server/checker/runner/tcp/types";
 import type { CheckerContext } from "../../../../../src/server/checker/runner/types";
 
+import { resolveContentExpectations } from "../../../../../src/server/checker/expect/content";
+import { resolveValueExpectation } from "../../../../../src/server/checker/expect/value";
 import { TcpChecker } from "../../../../../src/server/checker/runner/tcp/execute";
 
 const checker = new TcpChecker();
@@ -20,13 +26,27 @@ function makeCtx(timeoutMs = 5000): CheckerContext {
   return { signal: controller.signal };
 }
 
-function makeTarget(tcp: Partial<ResolvedTcpTarget["tcp"]>, overrides?: Partial<ResolvedTcpTarget>): ResolvedTcpTarget {
+function makeTarget(
+  tcp: Partial<ResolvedTcpTarget["tcp"]>,
+  overrides?: { expect?: RawTcpExpectConfig },
+): ResolvedTcpTarget {
+  const raw = overrides?.expect;
+  const resolvedExpect: ResolvedTcpExpectConfig | undefined = raw
+    ? {
+        banner: resolveContentExpectations(raw.banner),
+        connected: raw.connected ?? true,
+        durationMs: resolveValueExpectation(raw.durationMs),
+      }
+    : undefined;
+
   return {
     description: null,
+    expect: resolvedExpect,
     group: "default",
     id: "test-tcp",
     intervalMs: 60000,
     name: "test-tcp",
+    rawExpect: raw,
     tcp: {
       bannerReadTimeout: 2000,
       host: "127.0.0.1",
@@ -37,7 +57,6 @@ function makeTarget(tcp: Partial<ResolvedTcpTarget["tcp"]>, overrides?: Partial<
     },
     timeoutMs: 5000,
     type: "tcp",
-    ...overrides,
   };
 }
 
@@ -295,6 +314,8 @@ describe("TcpChecker resolve", () => {
     expect(target.name).toBeNull();
     expect(target.intervalMs).toBe(30000);
     expect(target.timeoutMs).toBe(10000);
+    expect(target.rawExpect).toBeUndefined();
+    expect(target.expect).toEqual({ connected: true });
   });
 
   test("bannerReadTimeout 和 maxBannerBytes 支持 per-target 覆盖", () => {
@@ -356,7 +377,12 @@ describe("TcpChecker resolve", () => {
       },
       { configDir: "/tmp", defaultIntervalMs: 30000, defaults: {}, defaultTimeoutMs: 10000 },
     );
-    expect(target.expect).toEqual({ banner: [{ contains: "ESMTP" }], connected: false, durationMs: { lte: 5000 } });
+    expect(target.expect).toEqual({
+      banner: [{ kind: "value", matcher: { contains: "ESMTP" } }],
+      connected: false,
+      durationMs: { lte: 5000 },
+    });
+    expect(target.rawExpect).toEqual({ banner: [{ contains: "ESMTP" }], connected: false, durationMs: { lte: 5000 } });
   });
 
   test("name 和 group 解析", () => {