task-98: 移除 similar-asin/appearance-patent 模块 Coze，状态机与共享组件改名 LLM

- similarasin/appearancepatent 模块全部 Coze 工作流调用改走 direct-LLM（已确认唯一运行路径）
- 共享组件改名：CozeTaskQueueGate→TaskQueueGate、CozeGroupResultPropagator→GroupResultPropagator
- 状态机改名：biz_task_scope_state 的 coze_* 列→llm_*、stateJson coze 键→llm（V100 迁移已应用生产）
- 删除 biz_coze_credential 表、CozeCredential* 类、SimilarAsinCozeClient、AppearancePatentCozeClient→LlmClient
- 前端 brand 页 Coze 文案→LLM；Python 后端删除 cozepy 依赖与死配置
- 修复 TaskResultFileJobWorker 启动失败：TaskFileJobConfig 注册 ResultFileJobHandlerRegistry 与 13 个 handler bean（含 validateCoverage 启动校验）

backend-java/src/test/java/com/nanri/aiimage/config/HttpClientConnectionReuseTest.java

@@ -3,7 +3,7 @@ package com.nanri.aiimage.config;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.nanri.aiimage.modules.brand.client.BrandCheckClient;
 import com.nanri.aiimage.modules.brand.client.BrandCheckClient.BrandCheckBatchResult;
-import com.nanri.aiimage.modules.similarasin.client.SimilarAsinCozeClient;
+import com.nanri.aiimage.modules.similarasin.client.SimilarAsinLlmClient;
 import com.nanri.aiimage.modules.ziniao.client.ZiniaoClientImpl;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
@@ -25,9 +25,9 @@ import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
- * Task 77：统一 Coze、品牌检查和紫鸟 HTTP 客户端的连接复用策略。
+ * Task 77：统一 LLM、品牌检查和紫鸟 HTTP 客户端的连接复用策略。
  * 三个外部客户端统一使用 HttpClientPool 共享的 java.net.http.HttpClient
- * （内置 keep-alive 连接复用）：Coze 与品牌检查从无连接池的
+ * （内置 keep-alive 连接复用）：LLM 与品牌检查从无连接池的
  * HttpURLConnection 迁移到共享池；紫鸟从每次调用新建 RestClient 改为
  * 复用共享单例。同一 HttpClient 实例即表明连接复用同一连接池。
  */
@@ -98,17 +98,17 @@ class HttpClientConnectionReuseTest {
     void test_task_077_brand_normal_multiple_items() throws Exception {
         // 批量场景：Coze/品牌/紫鸟三个客户端各自持有独立 RestClient，
         // 但底层连接池共用同一 HttpClient 实例，不重复创建。
-        SimilarAsinCozeClient coze = new SimilarAsinCozeClient(new SimilarAsinProperties(), new ObjectMapper(), null, null);
+        SimilarAsinLlmClient llm = new SimilarAsinLlmClient(new SimilarAsinProperties(), new ObjectMapper(), null);
         BrandCheckClient brand = new BrandCheckClient(new BrandCheckProperties(), null);
         ZiniaoClientImpl ziniao = new ZiniaoClientImpl(new ZiniaoProperties(), new ObjectMapper());
 
-        HttpClient cozeClient = clientOf(factoryOf(restClientOf(coze)));
+        HttpClient llmClient = clientOf(factoryOf(restClientOf(llm)));
         HttpClient brandClient = clientOf(factoryOf(restClientOf(brand)));
         HttpClient ziniaoClient = clientOf(factoryOf(restClientOf(ziniao)));
 
-        assertSame(cozeClient, brandClient, "Coze 与品牌检查共享连接池");
+        assertSame(llmClient, brandClient, "LLM 与品牌检查共享连接池");
         assertSame(brandClient, ziniaoClient, "品牌检查与紫鸟共享连接池");
-        assertSame(HttpClientPool.sharedHttpClient(), cozeClient, "与共享单例一致");
+        assertSame(HttpClientPool.sharedHttpClient(), llmClient, "与共享单例一致");
     }
 
     @Test