feat(provider): 增加 Claude Code 适配器、高级配置能力与 OAuth 账号类型统一解析

- 新增 Claude Code provider adapter (context, envelope, plugin, constants)
- 扩展 provider admin 路由，支持 Claude Code 高级配置 (CRUD)
- 统一 OAuth 账号类型解析逻辑，前后端对齐
- 重构 BatchAssignModelsDialog / ModelMappingDialog，简化组件逻辑
- handler 基类增强: request_builder 支持 Claude Code 信封格式
- CLI stream/sync mixin 适配 Claude Code 流式与同步模式
- 扩展 candidate builder / failover / scheduler 对 Claude Code 的支持
- 前端增加请求时间线可视化 (HorizontalRequestTimeline)
- 补充 Claude Code envelope / runtime controls / distributed sessions 等测试

Closes #183
Closes #185

Co-Authored-By: AAEE86 <ppk0227@hotmail.com>

src/models/admin_requests.py

@@ -80,6 +80,87 @@ class ProxyConfig(BaseModel):
         return self
 
 
+class PoolAdvancedConfig(BaseModel):
+    """通用号池配置（适用于所有 Provider 类型）。"""
+
+    sticky_session_ttl_seconds: int | None = Field(
+        None,
+        ge=60,
+        le=86400,
+        description="粘性会话 TTL（秒），同一对话始终路由到同一 Key。None = 禁用",
+    )
+    load_threshold_percent: int | None = Field(
+        None,
+        ge=10,
+        le=100,
+        description="负载率阈值（%），超过时该 Key 被降权。默认 80",
+    )
+    lru_enabled: bool = Field(True, description="LRU 调度（优先选择最久未用的 Key）")
+    cost_window_seconds: int | None = Field(
+        None,
+        ge=3600,
+        le=86400,
+        description="滚动成本窗口（秒）。默认 18000（5 小时）",
+    )
+    cost_limit_per_key_tokens: int | None = Field(
+        None, ge=0, description="每个 Key 在窗口内的最大 token 用量。None = 不限"
+    )
+    cost_soft_threshold_percent: int | None = Field(
+        None,
+        ge=0,
+        le=100,
+        description="成本软阈值（%），超过时优先选用其他 Key。默认 80",
+    )
+    rate_limit_cooldown_seconds: int | None = Field(
+        None, ge=10, le=3600, description="429 冷却时间（秒）。默认 300"
+    )
+    overload_cooldown_seconds: int | None = Field(
+        None, ge=5, le=600, description="529 冷却时间（秒）。默认 30"
+    )
+    proactive_refresh_seconds: int | None = Field(
+        None,
+        ge=60,
+        le=600,
+        description="OAuth Token 提前刷新秒数。默认 180（3 分钟）",
+    )
+    health_policy_enabled: bool = Field(
+        True, description="启用号池健康策略（按上游错误码自动冷却/禁用 Key）"
+    )
+    unschedulable_rules: list[dict] | None = Field(
+        None,
+        description="关键词临时不可调度规则: [{'keyword': '...', 'duration_minutes': 5}]",
+    )
+
+
+class ClaudeCodeAdvancedConfig(BaseModel):
+    """Claude Code 特有配置。"""
+
+    max_sessions: int | None = Field(
+        None, ge=1, le=1000, description="最大活跃会话数（为空表示不限制）"
+    )
+    session_idle_timeout_minutes: int | None = Field(
+        None, ge=1, le=1440, description="会话空闲超时（分钟）"
+    )
+    enable_tls_fingerprint: bool = Field(
+        False, description="是否启用 TLS 指纹模拟（模拟 Node.js/Claude Code 客户端）"
+    )
+    session_id_masking_enabled: bool = Field(
+        False, description="是否启用会话 ID 伪装（固定 metadata.user_id 中 session 片段）"
+    )
+
+    @model_validator(mode="after")
+    def normalize_session_control(self) -> "ClaudeCodeAdvancedConfig":
+        # 未启用会话限制时，不保留超时配置，避免产生误导。
+        if self.max_sessions is None:
+            self.session_idle_timeout_minutes = None
+            return self
+
+        # 启用会话限制但未设置超时时，回落到 5 分钟默认值。
+        if self.session_idle_timeout_minutes is None:
+            self.session_idle_timeout_minutes = 5
+        return self
+
+
 class CreateProviderRequest(BaseModel):
     """创建 Provider 请求"""
 
@@ -148,6 +229,12 @@ class CreateProviderRequest(BaseModel):
     request_timeout: float | None = Field(
         None, ge=1, le=600, description="非流式请求整体超时（秒）"
     )
+    pool_advanced: PoolAdvancedConfig | None = Field(
+        None, description="号池高级配置（适用于所有 Provider 类型）"
+    )
+    claude_code_advanced: ClaudeCodeAdvancedConfig | None = Field(
+        None, description="Claude Code 特有配置"
+    )
     config: dict[str, Any] | None = Field(None, description="其他配置")
 
     @field_validator("provider_type")
@@ -214,6 +301,13 @@ class CreateProviderRequest(BaseModel):
             valid_types = [t.value for t in ProviderBillingType]
             raise ValueError(f"无效的计费类型，有效值为: {', '.join(valid_types)}")
 
+    @model_validator(mode="after")
+    def validate_claude_code_advanced_scope(self) -> "CreateProviderRequest":
+        provider_type = (self.provider_type or "custom").strip()
+        if self.claude_code_advanced is not None and provider_type != "claude_code":
+            raise ValueError("claude_code_advanced 仅适用于 provider_type=claude_code")
+        return self
+
 
 class UpdateProviderRequest(BaseModel):
     """更新 Provider 请求"""
@@ -244,6 +338,12 @@ class UpdateProviderRequest(BaseModel):
     request_timeout: float | None = Field(
         None, ge=1, le=600, description="非流式请求整体超时（秒）"
     )
+    pool_advanced: PoolAdvancedConfig | None = Field(
+        None, description="号池高级配置（适用于所有 Provider 类型）"
+    )
+    claude_code_advanced: ClaudeCodeAdvancedConfig | None = Field(
+        None, description="Claude Code 特有配置"
+    )
     config: dict[str, Any] | None = None
 
     # 复用相同的验证器
@@ -258,6 +358,15 @@ class UpdateProviderRequest(BaseModel):
         CreateProviderRequest.validate_provider_type.__func__
     )
 
+    @model_validator(mode="after")
+    def validate_claude_code_advanced_scope(self) -> "UpdateProviderRequest":
+        # 更新场景下 provider_type 可能不在 payload 中，最终校验由路由层结合数据库值完成。
+        if self.claude_code_advanced is not None and self.provider_type is not None:
+            provider_type = (self.provider_type or "custom").strip()
+            if provider_type != "claude_code":
+                raise ValueError("claude_code_advanced 仅适用于 provider_type=claude_code")
+        return self
+
 
 class CreateEndpointRequest(BaseModel):
     """创建 Endpoint 请求"""

src/models/endpoint_models.py

@@ -10,7 +10,7 @@ from typing import Any, Literal
 
 from pydantic import BaseModel, ConfigDict, Field, field_validator
 
-from src.models.admin_requests import ProxyConfig
+from src.models.admin_requests import ClaudeCodeAdvancedConfig, PoolAdvancedConfig, ProxyConfig
 
 # ========== Header Rule 类型定义 ==========
 # 请求头规则支持三种操作：
@@ -934,6 +934,10 @@ class ProviderUpdateRequest(BaseModel):
     request_timeout: float | None = Field(
         None, ge=1, le=600, description="非流式请求整体超时（秒）"
     )
+    claude_code_advanced: ClaudeCodeAdvancedConfig | None = Field(
+        None, description="Claude Code 高级配置"
+    )
+    pool_advanced: PoolAdvancedConfig | None = Field(None, description="通用号池配置")
 
 
 class ProviderWithEndpointsSummary(BaseModel):
@@ -974,6 +978,10 @@ class ProviderWithEndpointsSummary(BaseModel):
         default=None, description="流式请求首字节超时（秒）"
     )
     request_timeout: float | None = Field(default=None, description="非流式请求整体超时（秒）")
+    claude_code_advanced: ClaudeCodeAdvancedConfig | None = Field(
+        default=None, description="Claude Code 高级配置"
+    )
+    pool_advanced: PoolAdvancedConfig | None = Field(default=None, description="通用号池配置")
 
     # Endpoint 统计
     total_endpoints: int = Field(default=0, description="总 Endpoint 数量")