refactor: 重构限流系统和健康监控，支持按 API 格式区分

- 将 adaptive_concurrency 重命名为 adaptive_rpm，从并发控制改为 RPM 控制
- 健康监控器支持按 API 格式独立管理健康度和熔断器状态
- 新增 model_permissions 模块，支持按格式配置允许的模型
- 重构前端提供商相关表单组件，新增 Collapsible UI 组件
- 新增数据库迁移脚本支持新的数据结构

frontend/src/mocks/data.ts

@@ -424,8 +424,7 @@ export const MOCK_ADMIN_API_KEYS: AdminApiKeysResponse = {
 export const MOCK_PROVIDERS: ProviderWithEndpointsSummary[] = [
   {
     id: 'provider-001',
-    name: 'duck_coding_free',
-    display_name: 'DuckCodingFree',
+    name: 'DuckCodingFree',
     description: '',
     website: 'https://duckcoding.com',
     provider_priority: 1,
@@ -451,8 +450,7 @@ export const MOCK_PROVIDERS: ProviderWithEndpointsSummary[] = [
   },
   {
     id: 'provider-002',
-    name: 'open_claude_code',
-    display_name: 'OpenClaudeCode',
+    name: 'OpenClaudeCode',
     description: '',
     website: 'https://www.openclaudecode.cn',
     provider_priority: 2,
@@ -477,8 +475,7 @@ export const MOCK_PROVIDERS: ProviderWithEndpointsSummary[] = [
   },
   {
     id: 'provider-003',
-    name: '88_code',
-    display_name: '88Code',
+    name: '88Code',
     description: '',
     website: 'https://www.88code.org/',
     provider_priority: 3,
@@ -503,8 +500,7 @@ export const MOCK_PROVIDERS: ProviderWithEndpointsSummary[] = [
   },
   {
     id: 'provider-004',
-    name: 'ikun_code',
-    display_name: 'IKunCode',
+    name: 'IKunCode',
     description: '',
     website: 'https://api.ikuncode.cc',
     provider_priority: 4,
@@ -531,8 +527,7 @@ export const MOCK_PROVIDERS: ProviderWithEndpointsSummary[] = [
   },
   {
     id: 'provider-005',
-    name: 'duck_coding',
-    display_name: 'DuckCoding',
+    name: 'DuckCoding',
     description: '',
     website: 'https://duckcoding.com',
     provider_priority: 5,
@@ -561,8 +556,7 @@ export const MOCK_PROVIDERS: ProviderWithEndpointsSummary[] = [
   },
   {
     id: 'provider-006',
-    name: 'privnode',
-    display_name: 'Privnode',
+    name: 'Privnode',
     description: '',
     website: 'https://privnode.com',
     provider_priority: 6,
@@ -584,8 +578,7 @@ export const MOCK_PROVIDERS: ProviderWithEndpointsSummary[] = [
   },
   {
     id: 'provider-007',
-    name: 'undying_api',
-    display_name: 'UndyingAPI',
+    name: 'UndyingAPI',
     description: '',
     website: 'https://vip.undyingapi.com',
     provider_priority: 7,