feat(m6): add JSON template CRUD with versioning

services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/integration/IntegrationCatalogController.java

@@ -1,6 +1,7 @@
 package cn.craftlabs.platform.api.integration;
 
 import cn.craftlabs.platform.api.persistence.integration.PlatformBitanswerIdMapping;
+import cn.craftlabs.platform.api.persistence.integration.PlatformJsonTemplate;
 import cn.craftlabs.platform.api.service.IntegrationCatalogService;
 import cn.craftlabs.platform.api.web.dto.IntegrationEnvironmentRequest;
 import cn.craftlabs.platform.api.web.dto.IntegrationEnvironmentResponse;
@@ -117,4 +118,33 @@ public class IntegrationCatalogController {
         integrationCatalogService.deleteIdMapping(id);
         return ResponseEntity.ok().build();
     }
+
+    @GetMapping("/json-templates")
+    public ResponseEntity<java.util.List<PlatformJsonTemplate>> listJsonTemplates() {
+        return ResponseEntity.ok(integrationCatalogService.listJsonTemplates());
+    }
+
+    @GetMapping("/json-templates/{id}")
+    public ResponseEntity<PlatformJsonTemplate> getJsonTemplate(@PathVariable Long id) {
+        PlatformJsonTemplate t = integrationCatalogService.getJsonTemplate(id);
+        return t != null ? ResponseEntity.ok(t) : ResponseEntity.notFound().build();
+    }
+
+    @PostMapping("/json-templates")
+    public ResponseEntity<PlatformJsonTemplate> createJsonTemplate(@RequestBody PlatformJsonTemplate body) {
+        return ResponseEntity.ok(integrationCatalogService.createJsonTemplate(body));
+    }
+
+    @PutMapping("/json-templates/{id}")
+    public ResponseEntity<PlatformJsonTemplate> updateJsonTemplate(
+            @PathVariable Long id, @RequestBody PlatformJsonTemplate body) {
+        PlatformJsonTemplate result = integrationCatalogService.updateJsonTemplate(id, body);
+        return result != null ? ResponseEntity.ok(result) : ResponseEntity.notFound().build();
+    }
+
+    @DeleteMapping("/json-templates/{id}")
+    public ResponseEntity<Void> deleteJsonTemplate(@PathVariable Long id) {
+        integrationCatalogService.deleteJsonTemplate(id);
+        return ResponseEntity.ok().build();
+    }
 }

services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/persistence/integration/PlatformJsonTemplate.java

@@ -0,0 +1,109 @@
+package cn.craftlabs.platform.api.persistence.integration;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+
+import java.time.OffsetDateTime;
+
+@TableName("platform_json_template")
+public class PlatformJsonTemplate {
+
+    @TableId(type = IdType.AUTO)
+    private Long id;
+
+    private String name;
+
+    private Integer version;
+
+    @TableField("template_content")
+    private String templateContent;
+
+    @TableField("schema_version")
+    private Integer schemaVersion;
+
+    @TableField("change_notes")
+    private String changeNotes;
+
+    @TableField("created_by")
+    private String createdBy;
+
+    @TableField("created_at")
+    private OffsetDateTime createdAt;
+
+    @TableField("updated_at")
+    private OffsetDateTime updatedAt;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getVersion() {
+        return version;
+    }
+
+    public void setVersion(Integer version) {
+        this.version = version;
+    }
+
+    public String getTemplateContent() {
+        return templateContent;
+    }
+
+    public void setTemplateContent(String templateContent) {
+        this.templateContent = templateContent;
+    }
+
+    public Integer getSchemaVersion() {
+        return schemaVersion;
+    }
+
+    public void setSchemaVersion(Integer schemaVersion) {
+        this.schemaVersion = schemaVersion;
+    }
+
+    public String getChangeNotes() {
+        return changeNotes;
+    }
+
+    public void setChangeNotes(String changeNotes) {
+        this.changeNotes = changeNotes;
+    }
+
+    public String getCreatedBy() {
+        return createdBy;
+    }
+
+    public void setCreatedBy(String createdBy) {
+        this.createdBy = createdBy;
+    }
+
+    public OffsetDateTime getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setCreatedAt(OffsetDateTime createdAt) {
+        this.createdAt = createdAt;
+    }
+
+    public OffsetDateTime getUpdatedAt() {
+        return updatedAt;
+    }
+
+    public void setUpdatedAt(OffsetDateTime updatedAt) {
+        this.updatedAt = updatedAt;
+    }
+}

services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/persistence/integration/PlatformJsonTemplateMapper.java

@@ -0,0 +1,7 @@
+package cn.craftlabs.platform.api.persistence.integration;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface PlatformJsonTemplateMapper extends BaseMapper<PlatformJsonTemplate> {}

services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/service/IntegrationCatalogService.java

@@ -4,6 +4,8 @@ import cn.craftlabs.platform.api.persistence.integration.PlatformBitanswerIdMapp
 import cn.craftlabs.platform.api.persistence.integration.PlatformBitanswerIdMappingMapper;
 import cn.craftlabs.platform.api.persistence.integration.PlatformIntegrationEnvironment;
 import cn.craftlabs.platform.api.persistence.integration.PlatformIntegrationEnvironmentMapper;
+import cn.craftlabs.platform.api.persistence.integration.PlatformJsonTemplate;
+import cn.craftlabs.platform.api.persistence.integration.PlatformJsonTemplateMapper;
 import cn.craftlabs.platform.api.persistence.integration.PlatformProductLine;
 import cn.craftlabs.platform.api.persistence.integration.PlatformProductLineMapper;
 import cn.craftlabs.platform.api.web.dto.IntegrationEnvironmentRequest;
@@ -27,14 +29,17 @@ public class IntegrationCatalogService {
     private final PlatformProductLineMapper productLineMapper;
     private final PlatformIntegrationEnvironmentMapper environmentMapper;
     private final PlatformBitanswerIdMappingMapper idMappingMapper;
+    private final PlatformJsonTemplateMapper jsonTemplateMapper;
 
     public IntegrationCatalogService(
             PlatformProductLineMapper productLineMapper,
             PlatformIntegrationEnvironmentMapper environmentMapper,
-            PlatformBitanswerIdMappingMapper idMappingMapper) {
+            PlatformBitanswerIdMappingMapper idMappingMapper,
+            PlatformJsonTemplateMapper jsonTemplateMapper) {
         this.productLineMapper = productLineMapper;
         this.environmentMapper = environmentMapper;
         this.idMappingMapper = idMappingMapper;
+        this.jsonTemplateMapper = jsonTemplateMapper;
     }
 
     @Transactional(readOnly = true)
@@ -174,6 +179,42 @@ public class IntegrationCatalogService {
         idMappingMapper.deleteById(id);
     }
 
+    @Transactional
+    public PlatformJsonTemplate createJsonTemplate(PlatformJsonTemplate template) {
+        template.setVersion(1);
+        template.setSchemaVersion(1);
+        template.setCreatedAt(java.time.OffsetDateTime.now());
+        template.setUpdatedAt(java.time.OffsetDateTime.now());
+        jsonTemplateMapper.insert(template);
+        return template;
+    }
+
+    public java.util.List<PlatformJsonTemplate> listJsonTemplates() {
+        return jsonTemplateMapper.selectList(
+                com.baomidou.mybatisplus.core.toolkit.Wrappers.lambdaQuery(PlatformJsonTemplate.class)
+                        .orderByDesc(PlatformJsonTemplate::getCreatedAt));
+    }
+
+    public PlatformJsonTemplate getJsonTemplate(Long id) {
+        return jsonTemplateMapper.selectById(id);
+    }
+
+    @Transactional
+    public PlatformJsonTemplate updateJsonTemplate(Long id, PlatformJsonTemplate template) {
+        PlatformJsonTemplate existing = jsonTemplateMapper.selectById(id);
+        if (existing == null) return null;
+        template.setId(id);
+        template.setVersion(existing.getVersion() + 1);
+        template.setUpdatedAt(java.time.OffsetDateTime.now());
+        jsonTemplateMapper.updateById(template);
+        return jsonTemplateMapper.selectById(id);
+    }
+
+    @Transactional
+    public void deleteJsonTemplate(Long id) {
+        jsonTemplateMapper.deleteById(id);
+    }
+
     private ProductLineResponse toProductLine(PlatformProductLine row) {
         ProductLineResponse r = new ProductLineResponse();
         r.setId(row.getId());

services/delivery-platform-api/src/main/resources/db/migration/V14__m6_json_template.sql

@@ -0,0 +1,12 @@
+-- V14__m6_json_template.sql
+CREATE TABLE platform_json_template (
+    id BIGSERIAL PRIMARY KEY,
+    name VARCHAR(128) NOT NULL,
+    version INT NOT NULL DEFAULT 1,
+    template_content TEXT NOT NULL,
+    schema_version INT NOT NULL DEFAULT 1,
+    change_notes TEXT,
+    created_by VARCHAR(256),
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
+);