feat: add backend autocomplete for suppliers and users in inbound

Co-authored-by: aider (openai/DeepSeek-V3.2-Thinking) <aider@aider.chat>

inventory-backend/app/api/v1/inbound/semi.py

@@ -117,4 +117,14 @@ def get_history(id):
         })
     except Exception as e:
         traceback.print_exc()
-        return jsonify({"code": 500, "msg": str(e)}), 500
+        return jsonify({"code": 500, "msg": str(e)}), 500
+
+
+# ------------------------------------------------------------------
+# 6. 系统用户建议
+# ------------------------------------------------------------------
+@inbound_semi_bp.route('/suggestions/users', methods=['GET'])
+def get_user_suggestions():
+    keyword = request.args.get('keyword', '')
+    data = SemiInboundService.search_system_users(keyword)
+    return jsonify({"code": 200, "msg": "success", "data": data})