Update form extraction logic in endpoints.py

- Changed the module name for form extraction to "更新表单" for clarity.
- Enhanced the extraction process to accommodate various output formats from nodes, ensuring compatibility with different structures.
- Improved handling of empty or invalid form updates, returning an empty object when necessary to maintain robustness.

src/api/endpoints.py

@@ -14,7 +14,8 @@ import re
 import time
 
 router = APIRouter()
-FORM_EXTRACT_MODULE_NAME = "文本内容提取事故信息"
+# FORM_EXTRACT_MODULE_NAME = "文本内容提取事故信息"
+FORM_EXTRACT_MODULE_NAME = "更新表单"
 STATE_TAG_PATTERN = re.compile(r"<state>\s*(\d+)\s*</state>", flags=re.DOTALL)
 STATUS_CODE_MAP = {
     '0000': '结束通话',
@@ -87,22 +88,27 @@ def extract_form_update_from_flow_nodes(nodes):
     """Extract form update data from the configured FastGPT content-extract node."""
     if not isinstance(nodes, list):
         return {}
-
     for node in nodes:
         if not isinstance(node, dict):
             continue
         if node.get("moduleName") != FORM_EXTRACT_MODULE_NAME:
             continue
-
-        extract_result = node.get("extractResult", {})
-        if not isinstance(extract_result, dict):
+        # 代码节点返回值在 customOutputs；兼容旧版/其他形态
+        outputs = node.get("customOutputs")
+        if not isinstance(outputs, dict):
+            outputs = node.get("nodeOutputs")
+        if not isinstance(outputs, dict):
+            outputs = node.get("extractResult")
+        if not isinstance(outputs, dict):
             return {}
-
-        form_update = extract_result.get("formUpdate", "")
-        if not form_update:
+        form_update = outputs.get("formUpdate", "")
+        if form_update in ("", None):
             return {}
-        return parse_json_value(form_update)
-
+        parsed = parse_json_value(form_update)
+        # 无变更时代码节点常返回 {}，直接透传空对象
+        if not isinstance(parsed, dict):
+            return {}
+        return parsed
     return {}