feat(plugin): PATCH 部分更新端点 — jsonb_set 字段合并

crates/erp-plugin/src/data_service.rs

@@ -252,6 +252,45 @@ impl PluginDataService {
         })
     }
 
+    /// 部分更新（PATCH）— 只合并提供的字段
+    pub async fn partial_update(
+        plugin_id: Uuid,
+        entity_name: &str,
+        id: Uuid,
+        tenant_id: Uuid,
+        operator_id: Uuid,
+        partial_data: serde_json::Value,
+        expected_version: i32,
+        db: &sea_orm::DatabaseConnection,
+    ) -> AppResult<PluginDataResp> {
+        let info = resolve_entity_info(plugin_id, entity_name, tenant_id, db).await?;
+
+        let (sql, values) = DynamicTableManager::build_patch_sql(
+            &info.table_name, id, tenant_id, operator_id, partial_data, expected_version,
+        );
+
+        #[derive(FromQueryResult)]
+        struct PatchResult {
+            id: Uuid,
+            data: serde_json::Value,
+            created_at: chrono::DateTime<chrono::Utc>,
+            updated_at: chrono::DateTime<chrono::Utc>,
+            version: i32,
+        }
+
+        let result = PatchResult::find_by_statement(Statement::from_sql_and_values(
+            sea_orm::DatabaseBackend::Postgres, sql, values,
+        )).one(db).await?.ok_or_else(|| AppError::VersionMismatch)?;
+
+        Ok(PluginDataResp {
+            id: result.id.to_string(),
+            data: result.data,
+            created_at: Some(result.created_at),
+            updated_at: Some(result.updated_at),
+            version: Some(result.version),
+        })
+    }
+
     /// 删除（软删除）
     pub async fn delete(
         plugin_id: Uuid,