feat(oa): add dept select FormCreate control with print formatting

Register type=dept on main app and oa-fc-host, with PC tree-select and
narrow drawer pickers storing {id,name} path snapshots; format dept values
in print and related-summary flatten.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/services/oa_related_approval.py

@@ -104,6 +104,18 @@ def _format_value(typ: str, raw: Any) -> Tuple[str, bool]:
         else:
             n = 0
         return f"已关联 {n} 条", False
+    if typ == "dept":
+        if isinstance(raw, list):
+            names = []
+            for x in raw:
+                if isinstance(x, dict):
+                    n = str(x.get("name") or "").strip()
+                    if n:
+                        names.append(n)
+            return "、".join(names) if names else "", False
+        if isinstance(raw, dict):
+            return str(raw.get("name") or "").strip(), False
+        return "", False
     if isinstance(raw, list):
         text = "、".join(str(x) for x in raw if x is not None and str(x) != "")
     elif isinstance(raw, dict):

backend/tests/test_oa_related_approval.py

@@ -37,6 +37,30 @@ class TestFlatten(unittest.TestCase):
         self.assertEqual(fields[2].get("relatedIds"), ["id1", "id2"])
         self.assertTrue(fields[3].get("fullWidth"))
 
+    def test_dept_formats_path_names(self):
+        schema = {
+            "rule": [
+                {"type": "dept", "field": "dept", "title": "部门"},
+                {
+                    "type": "dept",
+                    "field": "depts",
+                    "title": "多部门",
+                    "props": {"multiple": True},
+                },
+            ]
+        }
+        data = {
+            "dept": {"id": "d1", "name": "中科兴皖 / 研发"},
+            "depts": [
+                {"id": "d1", "name": "中科兴皖 / 研发"},
+                {"id": "d2", "name": "中科兴皖 / 质量"},
+            ],
+        }
+        fields = flatten_form_fields_for_summary(schema, data)
+        by_label = {f["label"]: f["value"] for f in fields}
+        self.assertEqual(by_label["部门"], "中科兴皖 / 研发")
+        self.assertEqual(by_label["多部门"], "中科兴皖 / 研发、中科兴皖 / 质量")
+
     def test_related_approval_field_includes_related_ids(self):
         schema = {
             "rule": [