diff --git a/src/main/java/com/bruce/common/config/AttachmentProperties.java b/src/main/java/com/bruce/common/config/AttachmentProperties.java
index cb2caf1..18ca7f8 100644
--- a/src/main/java/com/bruce/common/config/AttachmentProperties.java
+++ b/src/main/java/com/bruce/common/config/AttachmentProperties.java
@@ -1,5 +1,6 @@
 package com.bruce.common.config;
 
+import com.bruce.common.constant.CommonConsts;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 import org.springframework.boot.context.properties.ConfigurationProperties;
@@ -11,6 +12,6 @@ import org.springframework.stereotype.Component;
 @ConfigurationProperties(prefix = "common.attachment")
 public class AttachmentProperties {
 
-    private String basePath = "data/attachments";
+    private String basePath = CommonConsts.DEFAULT_ATTACHMENT_BASE_PATH;
 
 }
diff --git a/src/main/java/com/bruce/common/constant/CommonConsts.java b/src/main/java/com/bruce/common/constant/CommonConsts.java
new file mode 100644
index 0000000..9a5df07
--- /dev/null
+++ b/src/main/java/com/bruce/common/constant/CommonConsts.java
@@ -0,0 +1,21 @@
+package com.bruce.common.constant;
+
+public final class CommonConsts {
+
+    public static final String DATE_FORMAT_LONG_STR = "yyyy-MM-dd HH:mm:ss";
+
+    public static final String DATE_FORMAT_MILLIS_STR = "yyyy-MM-dd HH:mm:ss.SSS";
+
+    public static final String TIME_ZONE_GMT8 = "GMT+8";
+
+    public static final String DEFAULT_ATTACHMENT_BASE_PATH = "data/attachments";
+
+    public static final String STORAGE_TYPE_LOCAL = "LOCAL";
+
+    public static final String REQUEST_RESULT_SUCCESS_CODE = "0";
+
+    public static final String REQUEST_RESULT_FAIL_CODE = "-1";
+
+    private CommonConsts() {
+    }
+}
diff --git a/src/main/java/com/bruce/common/domain/model/BaseEntity.java b/src/main/java/com/bruce/common/domain/model/BaseEntity.java
index a1b03ad..9c79bfe 100644
--- a/src/main/java/com/bruce/common/domain/model/BaseEntity.java
+++ b/src/main/java/com/bruce/common/domain/model/BaseEntity.java
@@ -5,6 +5,7 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.Version;
+import com.bruce.common.constant.CommonConsts;
 import com.fasterxml.jackson.annotation.JsonFormat;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
@@ -24,7 +25,7 @@ public class BaseEntity {
     private String createBy;
 
     @Schema(description = "创建时间", example = "2026-05-18 20:00:00")
-    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    @JsonFormat(pattern = CommonConsts.DATE_FORMAT_LONG_STR, timezone = CommonConsts.TIME_ZONE_GMT8)
     @TableField(value = "create_time", fill = FieldFill.INSERT)
     private Date createTime;
 
@@ -33,7 +34,7 @@ public class BaseEntity {
     private String updateBy;
 
     @Schema(description = "更新时间", example = "2026-05-18 20:00:00")
-    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    @JsonFormat(pattern = CommonConsts.DATE_FORMAT_LONG_STR, timezone = CommonConsts.TIME_ZONE_GMT8)
     @TableField(value = "update_time", fill = FieldFill.INSERT_UPDATE)
     private Date updateTime;
 
diff --git a/src/main/java/com/bruce/common/domain/model/RequestResult.java b/src/main/java/com/bruce/common/domain/model/RequestResult.java
index d829176..cd50f26 100644
--- a/src/main/java/com/bruce/common/domain/model/RequestResult.java
+++ b/src/main/java/com/bruce/common/domain/model/RequestResult.java
@@ -1,5 +1,6 @@
 package com.bruce.common.domain.model;
 
+import com.bruce.common.constant.CommonConsts;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.AllArgsConstructor;
 import lombok.Data;
@@ -10,9 +11,9 @@ import lombok.NoArgsConstructor;
 @AllArgsConstructor
 public class RequestResult<T> {
 
-    public static final String FAIL_CODE = "-1";
+    public static final String FAIL_CODE = CommonConsts.REQUEST_RESULT_FAIL_CODE;
 
-    public static final String SUCCESS_CODE = "0";
+    public static final String SUCCESS_CODE = CommonConsts.REQUEST_RESULT_SUCCESS_CODE;
 
     @Schema(description = "错误消息")
     private String message;
diff --git a/src/main/java/com/bruce/common/service/impl/SysAttachmentServiceImpl.java b/src/main/java/com/bruce/common/service/impl/SysAttachmentServiceImpl.java
index 605a17b..407bc6f 100644
--- a/src/main/java/com/bruce/common/service/impl/SysAttachmentServiceImpl.java
+++ b/src/main/java/com/bruce/common/service/impl/SysAttachmentServiceImpl.java
@@ -2,6 +2,7 @@ package com.bruce.common.service.impl;
 
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.bruce.common.config.AttachmentProperties;
+import com.bruce.common.constant.CommonConsts;
 import com.bruce.common.domain.entity.SysAttachment;
 import com.bruce.common.dto.request.SysAttachmentUploadRequest;
 import com.bruce.common.mapper.SysAttachmentMapper;
@@ -22,8 +23,6 @@ import java.util.UUID;
 @Service
 public class SysAttachmentServiceImpl extends ServiceImpl<SysAttachmentMapper, SysAttachment> implements ISysAttachmentService {
 
-    private static final String STORAGE_TYPE_LOCAL = "LOCAL";
-
     @Autowired
     private AttachmentProperties attachmentProperties;
 
@@ -64,7 +63,7 @@ public class SysAttachmentServiceImpl extends ServiceImpl<SysAttachmentMapper, S
         attachment.setFileSuffix(suffix);
         attachment.setContentType(file.getContentType());
         attachment.setFileSize(file.getSize());
-        attachment.setStorageType(STORAGE_TYPE_LOCAL);
+        attachment.setStorageType(CommonConsts.STORAGE_TYPE_LOCAL);
         attachment.setFilePath(dateDirectory + "/" + storedFileName);
         attachment.setFileUrl(null);
         attachment.setVersion(1);
diff --git a/src/main/java/com/bruce/rag/dto/response/RagStoreResponse.java b/src/main/java/com/bruce/rag/dto/response/RagStoreResponse.java
index 7d0e776..0008f94 100644
--- a/src/main/java/com/bruce/rag/dto/response/RagStoreResponse.java
+++ b/src/main/java/com/bruce/rag/dto/response/RagStoreResponse.java
@@ -1,8 +1,10 @@
 package com.bruce.rag.dto.response;
 
+import com.bruce.common.constant.CommonConsts;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
 import com.bruce.rag.entity.RagStore;
+import com.fasterxml.jackson.annotation.JsonFormat;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import org.springframework.beans.BeanUtils;
@@ -33,9 +35,11 @@ public class RagStoreResponse {
     private String remark;
 
     @Schema(description = "创建时间")
+    @JsonFormat(pattern = CommonConsts.DATE_FORMAT_LONG_STR, timezone = CommonConsts.TIME_ZONE_GMT8)
     private Date createTime;
 
     @Schema(description = "更新时间")
+    @JsonFormat(pattern = CommonConsts.DATE_FORMAT_LONG_STR, timezone = CommonConsts.TIME_ZONE_GMT8)
     private Date updateTime;
 
     public static RagStoreResponse fromEntity(RagStore entity) {
diff --git a/src/main/resources/application.yaml b/src/main/resources/application.yaml
index 4eb4e00..24df169 100644
--- a/src/main/resources/application.yaml
+++ b/src/main/resources/application.yaml
@@ -7,3 +7,7 @@ spring:
 common:
   attachment:
     base-path: data/attachments
+
+logging:
+  pattern:
+    console: "%d{yyyy-MM-dd HH:mm:ss.SSS, GMT+8} %5p ${PID:- } --- [%15.15t] %-40.40logger{39} : %m%n%wEx"
diff --git a/src/test/java/com/bruce/common/constant/CommonConstsStructureTests.java b/src/test/java/com/bruce/common/constant/CommonConstsStructureTests.java
new file mode 100644
index 0000000..5efe0e4
--- /dev/null
+++ b/src/test/java/com/bruce/common/constant/CommonConstsStructureTests.java
@@ -0,0 +1,30 @@
+package com.bruce.common.constant;
+
+import com.bruce.common.config.AttachmentProperties;
+import com.bruce.common.domain.model.RequestResult;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class CommonConstsStructureTests {
+
+    @Test
+    void commonConstsShouldExposeReusableInfrastructureConstants() {
+        assertEquals("yyyy-MM-dd HH:mm:ss", CommonConsts.DATE_FORMAT_LONG_STR);
+        assertEquals("yyyy-MM-dd HH:mm:ss.SSS", CommonConsts.DATE_FORMAT_MILLIS_STR);
+        assertEquals("GMT+8", CommonConsts.TIME_ZONE_GMT8);
+        assertEquals("data/attachments", CommonConsts.DEFAULT_ATTACHMENT_BASE_PATH);
+        assertEquals("LOCAL", CommonConsts.STORAGE_TYPE_LOCAL);
+        assertEquals("0", CommonConsts.REQUEST_RESULT_SUCCESS_CODE);
+        assertEquals("-1", CommonConsts.REQUEST_RESULT_FAIL_CODE);
+    }
+
+    @Test
+    void sharedDefaultConstantsShouldBeReusedByCommonComponents() {
+        AttachmentProperties properties = new AttachmentProperties();
+
+        assertEquals(CommonConsts.DEFAULT_ATTACHMENT_BASE_PATH, properties.getBasePath());
+        assertEquals(CommonConsts.REQUEST_RESULT_SUCCESS_CODE, RequestResult.SUCCESS_CODE);
+        assertEquals(CommonConsts.REQUEST_RESULT_FAIL_CODE, RequestResult.FAIL_CODE);
+    }
+}
diff --git a/src/test/java/com/bruce/rag/RagStoreResponseSerializationTests.java b/src/test/java/com/bruce/rag/RagStoreResponseSerializationTests.java
index 0091fe6..9bef67c 100644
--- a/src/test/java/com/bruce/rag/RagStoreResponseSerializationTests.java
+++ b/src/test/java/com/bruce/rag/RagStoreResponseSerializationTests.java
@@ -1,9 +1,12 @@
 package com.bruce.rag;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.bruce.rag.dto.response.RagDocumentResponse;
 import com.bruce.rag.dto.response.RagStoreResponse;
 import org.junit.jupiter.api.Test;
 
+import java.util.Date;
+
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 class RagStoreResponseSerializationTests {
@@ -19,4 +22,24 @@ class RagStoreResponseSerializationTests {
 
         assertTrue(json.contains("\"id\":\"2057302206052372481\""));
     }
+
+    @Test
+    void responseTimeShouldSerializeWithUnifiedFormat() throws Exception {
+        RagStoreResponse storeResponse = new RagStoreResponse();
+        storeResponse.setCreateTime(new Date(1747816496000L));
+        storeResponse.setUpdateTime(new Date(1747816496000L));
+
+        RagDocumentResponse documentResponse = new RagDocumentResponse();
+        documentResponse.setCreateTime(new Date(1747816496000L));
+        documentResponse.setUpdateTime(new Date(1747816496000L));
+
+        ObjectMapper objectMapper = new ObjectMapper();
+        String storeJson = objectMapper.writeValueAsString(storeResponse);
+        String documentJson = objectMapper.writeValueAsString(documentResponse);
+
+        assertTrue(storeJson.contains("\"createTime\":\"2025-05-21 16:34:56\""));
+        assertTrue(storeJson.contains("\"updateTime\":\"2025-05-21 16:34:56\""));
+        assertTrue(documentJson.contains("\"createTime\":\"2025-05-21 16:34:56\""));
+        assertTrue(documentJson.contains("\"updateTime\":\"2025-05-21 16:34:56\""));
+    }
 }
diff --git a/src/test/java/com/bruce/rag/RagStoreSaveValidationTests.java b/src/test/java/com/bruce/rag/RagStoreSaveValidationTests.java
index d661dbc..7964b7d 100644
--- a/src/test/java/com/bruce/rag/RagStoreSaveValidationTests.java
+++ b/src/test/java/com/bruce/rag/RagStoreSaveValidationTests.java
@@ -1,10 +1,13 @@
 package com.bruce.rag;
 
+import com.bruce.common.enums.EnableStatusEnum;
 import com.bruce.rag.dto.request.RagStoreSaveRequest;
+import com.bruce.rag.entity.RagStore;
 import com.bruce.rag.service.impl.RagStoreServiceImpl;
 import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
 class RagStoreSaveValidationTests {
@@ -36,4 +39,16 @@ class RagStoreSaveValidationTests {
 
         assertDoesNotThrow(() -> service.validateSaveRequest(request));
     }
+
+    @Test
+    void saveShouldDefaultStatusToEnabledEnumLabel() {
+        RagStoreServiceImpl service = new RagStoreServiceImpl();
+        RagStoreSaveRequest request = new RagStoreSaveRequest();
+        request.setStoreCode("PROD_DOC");
+        request.setStoreName("产品制度库");
+
+        RagStore ragStore = service.buildEntity(request);
+
+        assertEquals(EnableStatusEnum.ENABLED.getLabel(), ragStore.getStatus());
+    }
 }