Feat/provider icon color (#385)

* feat(ui): add color prop support to ProviderIcon component

* feat(health): add stream check core functionality

Add new stream-based health check module to replace model_test:
- Add stream_check command layer with single and batch provider checks
- Add stream_check DAO layer for config and log persistence
- Add stream_check service layer with retry mechanism and health status evaluation
- Add frontend HealthStatusIndicator component
- Add frontend useStreamCheck hook

This provides more comprehensive health checking capabilities.

* refactor(health): replace model_test with stream_check

Replace model_test module with stream_check across the codebase:
- Remove model_test command and service modules
- Update command registry in lib.rs to use stream_check commands
- Update module exports in commands/mod.rs and services/mod.rs
- Remove frontend useModelTest hook
- Update stream_check command implementation

This refactoring provides clearer naming and better separation of concerns.

* refactor(db): clean up unused database tables and optimize schema

Remove deprecated and unused database tables:
- Remove proxy_usage table (replaced by proxy_request_logs)
- Remove usage_daily_stats table (aggregation done on-the-fly)
- Rename model_test_logs to stream_check_logs with updated schema
- Remove related DAO methods for proxy_usage
- Update usage_stats service to use proxy_request_logs only
- Refactor usage_script to work with new schema

This simplifies the database schema and removes redundant data storage.

* refactor(ui): update frontend components for stream check

Update frontend components to use stream check API:
- Refactor ModelTestConfigPanel to use stream check config
- Update API layer to use stream_check commands
- Add HealthStatus type and StreamCheckResult interface
- Update ProviderList to use new health check integration
- Update AutoFailoverConfigPanel with stream check references
- Improve UI layout and configuration options

This completes the frontend migration from model_test to stream_check.

* feat(health): add configurable test models and reasoning effort support

Enhance stream check service with configurable test models:
- Add claude_model, codex_model, gemini_model to StreamCheckConfig
- Support reasoning effort syntax (model@level or model#level)
- Parse and apply reasoning_effort for OpenAI-compatible models
- Remove hardcoded model names from check functions
- Add unit tests for model parsing logic
- Remove obsolete model_test source files

This allows users to customize which models are used for health checks.

src/components/providers/HealthStatusIndicator.tsx

@@ -0,0 +1,45 @@
+import React from "react";
+import { cn } from "@/lib/utils";
+import type { HealthStatus } from "@/lib/api/model-test";
+
+interface HealthStatusIndicatorProps {
+  status: HealthStatus;
+  responseTimeMs?: number;
+  className?: string;
+}
+
+const statusConfig = {
+  operational: {
+    color: "bg-emerald-500",
+    label: "正常",
+    textColor: "text-emerald-600 dark:text-emerald-400",
+  },
+  degraded: {
+    color: "bg-yellow-500",
+    label: "降级",
+    textColor: "text-yellow-600 dark:text-yellow-400",
+  },
+  failed: {
+    color: "bg-red-500",
+    label: "失败",
+    textColor: "text-red-600 dark:text-red-400",
+  },
+};
+
+export const HealthStatusIndicator: React.FC<HealthStatusIndicatorProps> = ({
+  status,
+  responseTimeMs,
+  className,
+}) => {
+  const config = statusConfig[status];
+
+  return (
+    <div className={cn("flex items-center gap-2", className)}>
+      <div className={cn("w-2 h-2 rounded-full", config.color)} />
+      <span className={cn("text-xs font-medium", config.textColor)}>
+        {config.label}
+        {responseTimeMs !== undefined && ` (${responseTimeMs}ms)`}
+      </span>
+    </div>
+  );
+};

src/components/providers/ProviderList.tsx

@@ -9,7 +9,7 @@ import type { CSSProperties } from "react";
 import type { Provider } from "@/types";
 import type { AppId } from "@/lib/api";
 import { useDragSort } from "@/hooks/useDragSort";
-import { useModelTest } from "@/hooks/useModelTest";
+import { useStreamCheck } from "@/hooks/useStreamCheck";
 import { ProviderCard } from "@/components/providers/ProviderCard";
 import { ProviderEmptyState } from "@/components/providers/ProviderEmptyState";
 
@@ -49,11 +49,11 @@ export function ProviderList({
     appId,
   );
 
-  // 模型测试
-  const { testProvider, isTesting } = useModelTest(appId);
+  // 流式健康检查
+  const { checkProvider, isChecking } = useStreamCheck(appId);
 
   const handleTest = (provider: Provider) => {
-    testProvider(provider.id, provider.name);
+    checkProvider(provider.id, provider.name);
   };
 
   if (isLoading) {
@@ -100,7 +100,7 @@ export function ProviderList({
               onConfigureUsage={onConfigureUsage}
               onOpenWebsite={onOpenWebsite}
               onTest={handleTest}
-              isTesting={isTesting(provider.id)}
+              isTesting={isChecking(provider.id)}
               isProxyRunning={isProxyRunning}
               isProxyTakeover={isProxyTakeover}
             />