refactor: 清理 litellm 冗余代码并锁定依赖版本

backend/src/core/agentscope/runtime/runner.py

@@ -47,7 +47,7 @@ from schemas.agent.system_agent import (
 from schemas.domain.automation import RuntimeConfig
 from schemas.domain.memory_content import UserMemoryContent, WorkProfileContent
 from schemas.shared.user import UserContext
-from services.litellm.service import LiteLLMService
+from services.llm_pricing.service import LlmPricingService
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
@@ -63,9 +63,11 @@ class StageExecutionResult:
 
 
 class AgentScopeRunner:
-    def __init__(self, *, litellm_service: LiteLLMService | None = None) -> None:
+    def __init__(self, *, llm_pricing_service: LlmPricingService | None = None) -> None:
         patch_agentscope_json_repair_compat()
-        self._litellm_service: LiteLLMService = litellm_service or LiteLLMService()
+        self._llm_pricing_service: LlmPricingService = (
+            llm_pricing_service or LlmPricingService()
+        )
         self._active_agent: JsonReActAgent | None = None
         self._active_agent_lock = asyncio.Lock()
 
@@ -355,7 +357,7 @@ class AgentScopeRunner:
         return StageExecutionResult(
             message=response_msg,
             payload=payload,
-            response_metadata=self._litellm_service.build_usage_metadata(
+            response_metadata=self._llm_pricing_service.build_usage_metadata(
                 model=stage_config.model_code,
                 usage_summary=tracking_model.usage_summary(),
             ),
@@ -436,7 +438,7 @@ class AgentScopeRunner:
                 if self._active_agent is agent:
                     self._active_agent = None
         worker_payload = worker_output_model.model_validate(response_msg.metadata or {})
-        response_metadata = self._litellm_service.build_usage_metadata(
+        response_metadata = self._llm_pricing_service.build_usage_metadata(
             model=stage_config.model_code,
             usage_summary=tracking_model.usage_summary(),
         )

backend/src/core/config/initial/init_data.py

@@ -28,7 +28,6 @@ class LlmFactorySeed(BaseModel):
 class LlmSeed(BaseModel):
     model_code: str
     factory_name: str
-    litellm_model: str
     pricing_tiers: list[dict[str, float | int]]
 
 

backend/src/core/config/settings.py

@@ -182,15 +182,8 @@ class LlmSettings(BaseModel):
     provider_keys: dict[str, str] = Field(default_factory=dict)
 
 
-class LiteLLMSettings(BaseModel):
-    host: str = "127.0.0.1"
-    port: int = 3875
-    api_key: str = "sk-local"
-
-    @computed_field
-    @property
-    def base_url(self) -> str:
-        return f"http://{self.host}:{self.port}/v1"
+class LlmPricingSettings(BaseModel):
+    pass
 
 
 class DatabaseSettings(BaseModel):
@@ -264,7 +257,7 @@ class Settings(BaseSettings):
     supabase: SupabaseSettings = Field()
     storage: StorageSettings = StorageSettings()
     llm: LlmSettings = LlmSettings()
-    litellm: LiteLLMSettings = LiteLLMSettings()
+    llm_pricing: LlmPricingSettings = LlmPricingSettings()
     agent_runtime: AgentRuntimeSettings = AgentRuntimeSettings()
     automation_scheduler: AutomationSchedulerSettings = AutomationSchedulerSettings()
     taskiq: TaskiqSettings = TaskiqSettings()

backend/src/core/config/static/database/llm_catalog.yaml

@@ -27,7 +27,6 @@ llms:
     # qwen3.5-flash (3 tiers: 128K, 256K, 1M)
     - model_code: qwen3.5-flash
       factory_name: dashscope
-      litellm_model: dashscope/qwen3.5-flash
       pricing_tiers:
           - max_prompt_tokens: 128000
             input_cost_per_token: 0.0000002
@@ -44,7 +43,6 @@ llms:
 
     - model_code: qwen3.5-35b-a3b
       factory_name: dashscope
-      litellm_model: dashscope/qwen3.5-35b-a3b
       pricing_tiers:
           - max_prompt_tokens: 128000
             input_cost_per_token: 0.0000004
@@ -55,7 +53,6 @@ llms:
 
     - model_code: deepseek-chat
       factory_name: deepseek
-      litellm_model: deepseek/deepseek-chat
       pricing_tiers:
           - max_prompt_tokens: 128000
             input_cost_per_token: 0.000002
@@ -64,7 +61,6 @@ llms:
 
     - model_code: qwen3.5-27b
       factory_name: dashscope
-      litellm_model: dashscope/qwen3.5-27b
       pricing_tiers:
           - max_prompt_tokens: 128000
             input_cost_per_token: 0.0000006

backend/src/services/litellm/__init__.py

@@ -1,5 +0,0 @@
-from __future__ import annotations
-
-from services.litellm.service import LiteLLMService
-
-__all__ = ["LiteLLMService"]

backend/src/services/llm_pricing/__init__.py

@@ -0,0 +1,5 @@
+from __future__ import annotations
+
+from services.llm_pricing.service import LlmPricingService
+
+__all__ = ["LlmPricingService"]

backend/src/services/llm_pricing/service.py

@@ -14,7 +14,7 @@ class PricingTier:
     cache_hit_cost_per_token: float
 
 
-class LiteLLMService:
+class LlmPricingService:
     _pricing_by_model: dict[str, tuple[PricingTier, ...]]
 
     def __init__(self) -> None:
@@ -28,7 +28,6 @@ class LiteLLMService:
             if not isinstance(model, dict):
                 continue
             model_code = str(model.get("model_code", "")).strip().lower()
-            litellm_model = str(model.get("litellm_model", "")).strip().lower()
             raw_tiers = model.get("pricing_tiers")
             if not isinstance(raw_tiers, list) or not raw_tiers:
                 continue
@@ -56,8 +55,6 @@ class LiteLLMService:
             )
             if model_code:
                 pricing_by_model[model_code] = ordered_tiers
-            if litellm_model:
-                pricing_by_model[litellm_model] = ordered_tiers
         return pricing_by_model
 
     def calculate_cost(

backend/tests/unit/services/test_llm_pricing_service.py

@@ -2,14 +2,14 @@ from __future__ import annotations
 
 import pytest
 
-from services.litellm.service import LiteLLMService
+from services.llm_pricing.service import LlmPricingService
 
 
 def test_calculate_cost_uses_first_qwen_tier() -> None:
-    service = LiteLLMService()
+    service = LlmPricingService()
 
     cost = service.calculate_cost(
-        model="dashscope/qwen3.5-flash",
+        model="qwen3.5-flash",
         prompt_tokens=100_000,
         completion_tokens=1_000,
         cached_prompt_tokens=10_000,
@@ -19,10 +19,10 @@ def test_calculate_cost_uses_first_qwen_tier() -> None:
 
 
 def test_calculate_cost_uses_second_qwen_tier() -> None:
-    service = LiteLLMService()
+    service = LlmPricingService()
 
     cost = service.calculate_cost(
-        model="dashscope/qwen3.5-flash",
+        model="qwen3.5-flash",
         prompt_tokens=200_000,
         completion_tokens=5_000,
         cached_prompt_tokens=20_000,
@@ -32,10 +32,10 @@ def test_calculate_cost_uses_second_qwen_tier() -> None:
 
 
 def test_build_usage_metadata_calculates_cost_from_usage_summary() -> None:
-    service = LiteLLMService()
+    service = LlmPricingService()
 
     metadata = service.build_usage_metadata(
-        model="dashscope/qwen3.5-flash",
+        model="qwen3.5-flash",
         usage_summary={
             "input_tokens": 2000,
             "output_tokens": 100,
@@ -44,7 +44,7 @@ def test_build_usage_metadata_calculates_cost_from_usage_summary() -> None:
         },
     )
 
-    assert metadata["model"] == "dashscope/qwen3.5-flash"
+    assert metadata["model"] == "qwen3.5-flash"
     assert metadata["inputTokens"] == 2000
     assert metadata["outputTokens"] == 100
     assert metadata["totalTokens"] == 2100
@@ -59,7 +59,7 @@ def test_build_usage_metadata_calculates_cost_from_usage_summary() -> None:
 
 
 def test_build_usage_metadata_prefers_provider_direct_cost() -> None:
-    service = LiteLLMService()
+    service = LlmPricingService()
 
     metadata = service.build_usage_metadata(
         model="deepseek-chat",
@@ -80,7 +80,7 @@ def test_build_usage_metadata_prefers_provider_direct_cost() -> None:
 
 
 def test_build_usage_metadata_falls_back_when_provider_cost_incomplete() -> None:
-    service = LiteLLMService()
+    service = LlmPricingService()
 
     metadata = service.build_usage_metadata(
         model="deepseek-chat",
@@ -100,7 +100,7 @@ def test_build_usage_metadata_falls_back_when_provider_cost_incomplete() -> None
 
 
 def test_build_usage_metadata_marks_incomplete_usage_fallback() -> None:
-    service = LiteLLMService()
+    service = LlmPricingService()
 
     metadata = service.build_usage_metadata(
         model="deepseek-chat",

pyproject.toml

@@ -4,34 +4,34 @@ version = "0.1.0"
 description = "Social application backend"
 requires-python = ">=3.12"
 dependencies = [
-    "ag-ui-protocol>=0.1.13",
-    "alembic>=1.18.3",
-    "asyncpg>=0.31.0",
-    "email-validator>=2.3.0",
-    "fastapi>=0.128.0",
-    "pydantic>=2.11.0",
-    "pydantic-settings>=2.10.0",
-    "pyjwt>=2.10.1",
-    "pyyaml>=6.0.3",
-    "redis>=7.1.0",
-    "sqlalchemy[asyncio]>=2.0.46",
-    "structlog>=24.4.0",
-    "taskiq>=0.11.0",
-    "taskiq-redis>=1.0.0",
-    "supabase>=2.27.2",
-    "uvicorn[standard]>=0.40.0",
-    "dashscope>=1.25.13",
-    "agentscope>=1.0.16",
-    "apscheduler>=3.11.0",
+    "ag-ui-protocol==0.1.13",
+    "alembic==1.18.4",
+    "asyncpg==0.31.0",
+    "email-validator==2.3.0",
+    "fastapi==0.135.1",
+    "pydantic==2.12.5",
+    "pydantic-settings==2.13.1",
+    "pyjwt==2.11.0",
+    "pyyaml==6.0.3",
+    "redis==7.2.1",
+    "sqlalchemy[asyncio]==2.0.48",
+    "structlog==25.5.0",
+    "taskiq==0.12.1",
+    "taskiq-redis==1.2.2",
+    "supabase==2.28.0",
+    "uvicorn[standard]==0.41.0",
+    "dashscope==1.25.13",
+    "agentscope==1.0.16",
+    "apscheduler==3.11.2",
 ]
 
 [project.optional-dependencies]
 dev = [
-    "httpx>=0.28.0",
-    "playwright>=1.49.0",
-    "pytest>=8.3.0",
-    "pytest-asyncio>=0.24.0",
-    "pytest-cov>=5.0.0",
+    "httpx==0.28.1",
+    "playwright==1.58.0",
+    "pytest==9.0.2",
+    "pytest-asyncio==1.3.0",
+    "pytest-cov==7.0.0",
 ]
 
 [[tool.uv.index]]
@@ -48,11 +48,7 @@ markers = [
 
 [dependency-groups]
 dev = [
-    "aiosqlite>=0.22.1",
-    "basedpyright>=1.37.2",
-    "playwright>=1.57.0",
-    "pre-commit>=4.5.1",
-    "pytest>=9.0.2",
-    "pytest-asyncio>=1.3.0",
-    "pytest-cov>=7.0.0",
+    "aiosqlite==0.22.1",
+    "basedpyright==1.38.2",
+    "pre-commit==4.5.1",
 ]