feat: add models management and usage history components

- Introduced RequestContentDialog for displaying request content details.
- Added UsageBarChart for visualizing token usage data.
- Implemented UsageHistorySection to manage and display usage history with filtering and pagination.
- Created provider-types for managing provider-related types.
- Developed ModelsPage to encapsulate models configuration, providers, and usage history.
- Defined usage-history types and utility functions for managing usage data.
- Updated routing to include models page and redirect agents to models.
- Refactored chat store to integrate models instead of agents.
- Established models store for managing model-related state and data fetching.

electron/utils/token-usage-writer.ts

@@ -1,21 +1,39 @@
 import { app } from 'electron';
 import * as fs from 'fs';
 import * as path from 'path';
-import { parseSessionKey } from '@runtime/lib/agents';
+import { parseSessionKey } from '@runtime/lib/models';
 
-export function getTranscriptFilePath(sessionKey: string): string {
+const PRIMARY_TRANSCRIPT_ROOT_DIR = 'models';
+const LEGACY_TRANSCRIPT_ROOT_DIR = 'agents';
+
+function buildTranscriptFilePath(sessionKey: string, rootDirName: string): string {
   const parsed = parseSessionKey(sessionKey);
-  let agentId = parsed.isAgentSession ? parsed.agentId : 'default';
+  const agentId = parsed.isAgentSession ? parsed.agentId : 'default';
   let sessionId = parsed.isAgentSession ? parsed.sessionId : sessionKey;
 
   if (!sessionId) {
     sessionId = 'unknown';
   }
 
-  const baseDir = path.join(app.getPath('userData'), 'agents', agentId, 'sessions');
+  const baseDir = path.join(app.getPath('userData'), rootDirName, agentId, 'sessions');
   return path.join(baseDir, `${sessionId}.jsonl`);
 }
 
+export function getTranscriptFilePath(sessionKey: string): string {
+  return buildTranscriptFilePath(sessionKey, PRIMARY_TRANSCRIPT_ROOT_DIR);
+}
+
+export function getLegacyTranscriptFilePath(sessionKey: string): string {
+  return buildTranscriptFilePath(sessionKey, LEGACY_TRANSCRIPT_ROOT_DIR);
+}
+
+export function getTranscriptPathCandidates(sessionKey: string): string[] {
+  return Array.from(new Set([
+    getTranscriptFilePath(sessionKey),
+    getLegacyTranscriptFilePath(sessionKey),
+  ]));
+}
+
 export function appendTranscriptLine(sessionKey: string, lineObject: any): void {
   const filePath = getTranscriptFilePath(sessionKey);
   fs.mkdirSync(path.dirname(filePath), { recursive: true });