feat: preliminarily implement pipeline invoking

pkg/api/http/service/pipeline.py

@@ -5,10 +5,25 @@ import datetime
 import sqlalchemy
 
 from ....core import app
-from ....pipeline import stagemgr
 from ....entity.persistence import pipeline as persistence_pipeline
 
 
+default_stage_order = [
+    "GroupRespondRuleCheckStage",  # 群响应规则检查
+    "BanSessionCheckStage",  # 封禁会话检查
+    "PreContentFilterStage",  # 内容过滤前置阶段
+    "PreProcessor",  # 预处理器
+    "ConversationMessageTruncator",  # 会话消息截断器
+    "RequireRateLimitOccupancy",  # 请求速率限制占用
+    "MessageProcessor",  # 处理器
+    "ReleaseRateLimitOccupancy",  # 释放速率限制占用
+    "PostContentFilterStage",  # 内容过滤后置阶段
+    "ResponseWrapper",  # 响应包装器
+    "LongTextProcessStage",  # 长文本处理
+    "SendResponseBackStage",  # 发送响应
+]
+
+
 class PipelineService:
     ap: app.Application
     
@@ -49,7 +64,7 @@ class PipelineService:
     async def create_pipeline(self, pipeline_data: dict) -> str:
         pipeline_data['uuid'] = str(uuid.uuid4())
         pipeline_data['for_version'] = self.ap.ver_mgr.get_current_version()
-        pipeline_data['stages'] = stagemgr.stage_order.copy()
+        pipeline_data['stages'] = default_stage_order.copy()
 
         # TODO: 检查pipeline config是否完整