Align usage dashboard with CCSwitch

Filter request logs to model API calls and add request, provider, model, and settings tabs.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/lib/types.ts

@@ -66,6 +66,8 @@ export interface LogEntry {
   time: string;
   method: string;
   path: string;
+  app?: string;
+  provider?: string;
   model?: string;
   status: number;
   duration_ms: number;