refactor: 清理数据库字段命名歧义

- users 表：重命名 allowed_endpoints 为 allowed_api_formats（修正历史命名错误）
- api_keys 表：删除 allowed_endpoints 字段（未使用的功能）
- providers 表：删除 rate_limit 字段（与 rpm_limit 重复）
- usage 表：重命名 provider 为 provider_name（避免与 provider_id 外键混淆）

同步更新前后端所有相关代码

src/api/admin/providers/routes.py

@@ -73,7 +73,6 @@ async def create_provider(request: Request, db: Session = Depends(get_db)):
     - `rpm_limit`: 每分钟请求数限制（可选）
     - `provider_priority`: 提供商优先级（数字越小优先级越高，默认 100）
     - `is_active`: 是否启用（默认 true）
-    - `rate_limit`: 速率限制配置（可选）
     - `concurrent_limit`: 并发限制（可选）
     - `config`: 额外配置信息（JSON，可选）
 
@@ -110,7 +109,6 @@ async def update_provider(provider_id: str, request: Request, db: Session = Depe
     - `rpm_limit`: 每分钟请求数限制
     - `provider_priority`: 提供商优先级
     - `is_active`: 是否启用
-    - `rate_limit`: 速率限制配置
     - `concurrent_limit`: 并发限制
     - `config`: 额外配置信息（JSON）
 
@@ -228,7 +226,6 @@ class AdminCreateProviderAdapter(AdminApiAdapter):
                 rpm_limit=validated_data.rpm_limit,
                 provider_priority=validated_data.provider_priority,
                 is_active=validated_data.is_active,
-                rate_limit=validated_data.rate_limit,
                 concurrent_limit=validated_data.concurrent_limit,
                 config=validated_data.config,
             )

src/api/admin/system.py

@@ -684,7 +684,6 @@ class AdminExportConfigAdapter(AdminApiAdapter):
                     "rpm_limit": provider.rpm_limit,
                     "provider_priority": provider.provider_priority,
                     "is_active": provider.is_active,
-                    "rate_limit": provider.rate_limit,
                     "concurrent_limit": provider.concurrent_limit,
                     "config": provider.config,
                     "endpoints": endpoints_data,
@@ -831,7 +830,6 @@ class AdminImportConfigAdapter(AdminApiAdapter):
                             "provider_priority", 100
                         )
                         existing_provider.is_active = prov_data.get("is_active", True)
-                        existing_provider.rate_limit = prov_data.get("rate_limit")
                         existing_provider.concurrent_limit = prov_data.get(
                             "concurrent_limit"
                         )
@@ -856,7 +854,6 @@ class AdminImportConfigAdapter(AdminApiAdapter):
                         rpm_limit=prov_data.get("rpm_limit"),
                         provider_priority=prov_data.get("provider_priority", 100),
                         is_active=prov_data.get("is_active", True),
-                        rate_limit=prov_data.get("rate_limit"),
                         concurrent_limit=prov_data.get("concurrent_limit"),
                         config=prov_data.get("config"),
                     )
@@ -1109,7 +1106,6 @@ class AdminExportUsersAdapter(AdminApiAdapter):
                 "balance_used_usd": key.balance_used_usd,
                 "current_balance_usd": key.current_balance_usd,
                 "allowed_providers": key.allowed_providers,
-                "allowed_endpoints": key.allowed_endpoints,
                 "allowed_api_formats": key.allowed_api_formats,
                 "allowed_models": key.allowed_models,
                 "rate_limit": key.rate_limit,
@@ -1146,7 +1142,7 @@ class AdminExportUsersAdapter(AdminApiAdapter):
                     "password_hash": user.password_hash,
                     "role": user.role.value if user.role else "user",
                     "allowed_providers": user.allowed_providers,
-                    "allowed_endpoints": user.allowed_endpoints,
+                    "allowed_api_formats": user.allowed_api_formats,
                     "allowed_models": user.allowed_models,
                     "model_capability_settings": user.model_capability_settings,
                     "quota_usd": user.quota_usd,
@@ -1238,7 +1234,6 @@ class AdminImportUsersAdapter(AdminApiAdapter):
                 balance_used_usd=key_data.get("balance_used_usd", 0.0),
                 current_balance_usd=key_data.get("current_balance_usd"),
                 allowed_providers=key_data.get("allowed_providers"),
-                allowed_endpoints=key_data.get("allowed_endpoints"),
                 allowed_api_formats=key_data.get("allowed_api_formats"),
                 allowed_models=key_data.get("allowed_models"),
                 rate_limit=key_data.get("rate_limit"),
@@ -1282,7 +1277,7 @@ class AdminImportUsersAdapter(AdminApiAdapter):
                         if user_data.get("role"):
                             existing_user.role = UserRole(user_data["role"])
                         existing_user.allowed_providers = user_data.get("allowed_providers")
-                        existing_user.allowed_endpoints = user_data.get("allowed_endpoints")
+                        existing_user.allowed_api_formats = user_data.get("allowed_api_formats")
                         existing_user.allowed_models = user_data.get("allowed_models")
                         existing_user.model_capability_settings = user_data.get(
                             "model_capability_settings"
@@ -1306,7 +1301,7 @@ class AdminImportUsersAdapter(AdminApiAdapter):
                         password_hash=user_data.get("password_hash", ""),
                         role=role,
                         allowed_providers=user_data.get("allowed_providers"),
-                        allowed_endpoints=user_data.get("allowed_endpoints"),
+                        allowed_api_formats=user_data.get("allowed_api_formats"),
                         allowed_models=user_data.get("allowed_models"),
                         model_capability_settings=user_data.get("model_capability_settings"),
                         quota_usd=user_data.get("quota_usd"),

src/api/admin/usage/routes.py

@@ -353,8 +353,8 @@ class AdminUsageByModelAdapter(AdminApiAdapter):
         )
         # 过滤掉 pending/streaming 状态的请求（尚未完成的请求不应计入统计）
         query = query.filter(Usage.status.notin_(["pending", "streaming"]))
-        # 过滤掉 unknown/pending provider（请求未到达任何提供商）
-        query = query.filter(Usage.provider.notin_(["unknown", "pending"]))
+        # 过滤掉 unknown/pending provider_name（请求未到达任何提供商）
+        query = query.filter(Usage.provider_name.notin_(["unknown", "pending"]))
 
         if self.start_date:
             query = query.filter(Usage.created_at >= self.start_date)
@@ -565,8 +565,8 @@ class AdminUsageByApiFormatAdapter(AdminApiAdapter):
         )
         # 过滤掉 pending/streaming 状态的请求
         query = query.filter(Usage.status.notin_(["pending", "streaming"]))
-        # 过滤掉 unknown/pending provider
-        query = query.filter(Usage.provider.notin_(["unknown", "pending"]))
+        # 过滤掉 unknown/pending provider_name
+        query = query.filter(Usage.provider_name.notin_(["unknown", "pending"]))
         # 只统计有 api_format 的记录
         query = query.filter(Usage.api_format.isnot(None))
 
@@ -765,8 +765,8 @@ class AdminUsageRecordsAdapter(AdminApiAdapter):
                 float(usage.rate_multiplier) if usage.rate_multiplier is not None else 1.0
             )
 
-            # 提供商名称优先级：关联的 Provider 表 > usage.provider 字段
-            provider_name = usage.provider
+            # 提供商名称优先级：关联的 Provider 表 > usage.provider_name 字段
+            provider_name = usage.provider_name
             if usage.provider_id and str(usage.provider_id) in provider_map:
                 provider_name = provider_map[str(usage.provider_id)]
 
@@ -881,7 +881,7 @@ class AdminUsageDetailAdapter(AdminApiAdapter):
                 "name": api_key.name if api_key else None,
                 "display": api_key.get_display_key() if api_key else None,
             },
-            "provider": usage_record.provider,
+            "provider": usage_record.provider_name,
             "api_format": usage_record.api_format,
             "model": usage_record.model,
             "target_model": usage_record.target_model,
@@ -934,7 +934,7 @@ class AdminUsageDetailAdapter(AdminApiAdapter):
         # 尝试获取模型的阶梯配置（带来源信息）
         cost_service = ModelCostService(db)
         pricing_result = await cost_service.get_tiered_pricing_with_source_async(
-            usage_record.provider, usage_record.model
+            usage_record.provider_name, usage_record.model
         )
 
         if not pricing_result:

src/api/admin/users/routes.py

@@ -246,7 +246,7 @@ class AdminCreateUserAdapter(AdminApiAdapter):
             "username": user.username,
             "role": user.role.value,
             "allowed_providers": user.allowed_providers,
-            "allowed_endpoints": user.allowed_endpoints,
+            "allowed_api_formats": user.allowed_api_formats,
             "allowed_models": user.allowed_models,
             "quota_usd": user.quota_usd,
             "used_usd": user.used_usd,
@@ -274,7 +274,7 @@ class AdminListUsersAdapter(AdminApiAdapter):
                 "username": u.username,
                 "role": u.role.value,
                 "allowed_providers": u.allowed_providers,
-                "allowed_endpoints": u.allowed_endpoints,
+                "allowed_api_formats": u.allowed_api_formats,
                 "allowed_models": u.allowed_models,
                 "quota_usd": u.quota_usd,
                 "used_usd": u.used_usd,
@@ -309,7 +309,7 @@ class AdminGetUserAdapter(AdminApiAdapter):
             "username": user.username,
             "role": user.role.value,
             "allowed_providers": user.allowed_providers,
-            "allowed_endpoints": user.allowed_endpoints,
+            "allowed_api_formats": user.allowed_api_formats,
             "allowed_models": user.allowed_models,
             "quota_usd": user.quota_usd,
             "used_usd": user.used_usd,
@@ -375,7 +375,7 @@ class AdminUpdateUserAdapter(AdminApiAdapter):
             "username": user.username,
             "role": user.role.value,
             "allowed_providers": user.allowed_providers,
-            "allowed_endpoints": user.allowed_endpoints,
+            "allowed_api_formats": user.allowed_api_formats,
             "allowed_models": user.allowed_models,
             "quota_usd": user.quota_usd,
             "used_usd": user.used_usd,