优化get_pagetype_module_app，如果module是custom类型，app从package取值

jingrow/ai/utils/jlocal.py

@@ -4,9 +4,12 @@ import os
 import shutil
 import subprocess
 import tempfile
+import datetime
+from pathlib import Path
 from typing import Dict, List, Any, Optional
 from jingrow.ai.utils.node_schema import get_node_schema_fields
 from jingrow.modules.utils import get_pagetype_module, get_module_app
+from jingrow.modules.export_file import export_pg
 from jingrow import _
 
 @jingrow.whitelist()
@@ -647,14 +650,17 @@ def get_pagetype_module_app(pagetype: str) -> Dict[str, Any]:
         module = get_pagetype_module(pagetype)
         module_scrub = jingrow.scrub(module)
         
-        # 首先从 module_app 映射获取（O(1) 字典查找）
+        # 先查缓存
         app = jingrow.local.module_app.get(module_scrub)
         
-        # 如果找不到，查询数据库（可能是 custom module）
+        # 未命中则一次性读取 Module Def，custom 优先 package，否则取 app_name，最后兜底
         if app is None:
-            app_name = jingrow.db.get_value("Module Def", {"module_name": module}, "app_name", ignore=True)            
-            app = app_name
-            # 将结果回写到 module_app 映射，下次直接命中（优化性能）
+            module_def = jingrow.get_pg("Module Def", {"module_name": module})
+            if module_def.custom:
+                app = module_def.package or module_def.app_name
+            else:
+                app = get_module_app(module)
+
             jingrow.local.module_app[module_scrub] = app
         
         return {
@@ -832,3 +838,92 @@ def install_package(package_file_url: str) -> Dict[str, Any]:
 		
 	except Exception as e:
 		return {'success': False, 'error': str(e)}
+
+@jingrow.whitelist()
+def export_app_metadata(app_name: str) -> Dict[str, Any]:
+	"""导出应用扩展包元数据 - 直接返回Package、Module、PageType的JSON数据结构"""
+	try:
+		# 1. 根据 app_name 查找对应的 Package
+		package = None
+		packages = jingrow.get_all("Package", filters={"name": app_name})
+		
+		if packages:
+			package = jingrow.get_pg("Package", packages[0].name)
+		else:
+			# 如果没有找到，尝试使用 app_name 作为 package_name 查找
+			packages = jingrow.get_all("Package", filters={"package_name": app_name})
+			if packages:
+				package = jingrow.get_pg("Package", packages[0].name)
+		
+		if not package:
+			return {
+				"success": False,
+				"error": f"未找到应用 '{app_name}' 对应的 Package"
+			}
+		
+		# 2. 收集Package元数据
+		metadata = {
+			"package": package.as_dict(no_nulls=True),
+			"package_name": package.package_name,
+			"readme": str(package.readme or ""),
+			"license": str(package.license or "") if package.license else None,
+			"modules": {}
+		}
+		
+		# 3. 收集所有Module及其文档的元数据
+		modules = jingrow.get_all("Module Def", filters={"package": package.name})
+		
+		for m in modules:
+			try:
+				module = jingrow.get_pg("Module Def", m.name)
+				
+				if not module or not hasattr(module, 'meta'):
+					continue
+				
+				# 收集该模块下的所有文档
+				module_docs = {}
+				for l in module.meta.links:
+					if l.link_pagetype == "Module Def":
+						continue
+					
+					try:
+						# 获取该类型的所有文档
+						docs = jingrow.get_all(l.link_pagetype, filters={"module": m.name})
+						for d in docs:
+							try:
+								doc = jingrow.get_pg(l.link_pagetype, d.name)
+								# 导出文档数据
+								doc_export = doc.as_dict(no_nulls=True)
+								
+								# 添加到模块文档
+								pagetype_name = l.link_pagetype
+								if pagetype_name not in module_docs:
+									module_docs[pagetype_name] = {}
+								module_docs[pagetype_name][doc.name] = doc_export
+							except Exception:
+								continue
+					except Exception:
+						continue
+				
+				metadata["modules"][m.name] = {
+					"module_info": m.as_dict(no_nulls=True),
+					"docs": module_docs
+				}
+			except Exception:
+				continue
+		
+		# 4. 返回元数据
+		result = {
+			"success": True,
+			"metadata": metadata
+		}
+		
+		return result
+		
+	except Exception as e:
+		import traceback
+		jingrow.log_error("Export app metadata error", str(e))
+		return {
+			"success": False,
+			"error": f"导出扩展包元数据失败: {str(e)}"
+		}