feat(models): bridge Chat Completions and Responses through Claude runtime

scripts/session-store-regression.ts

@@ -1,6 +1,7 @@
+import { modelBridgeHistoryDirectory } from '../src/main/model-bridge/paths'
 import assert from 'node:assert/strict'
 import { testTerminalHostPlugin } from './test-terminal-host-plugin'
-import { mkdir, mkdtemp, readFile, readdir, rm } from 'node:fs/promises'
+import { mkdir, mkdtemp, readFile, readdir, rm, writeFile } from 'node:fs/promises'
 import { tmpdir } from 'node:os'
 import { join } from 'node:path'
 import { pathToFileURL } from 'node:url'
@@ -8,6 +9,7 @@ import { build } from 'esbuild'
 import type { ChatMessage, SessionMeta, ToolCallRecord } from '../src/shared/types'
 
 interface SessionStoreApi {
+  deleteSession(sessionId: string): Promise<void>
   listSessions(): Promise<SessionMeta[]>
   createSession(title?: string): Promise<SessionMeta>
   appendMessage(sessionId: string, message: ChatMessage): Promise<void>
@@ -265,6 +267,16 @@ async function main(): Promise<void> {
     assert.deepEqual(afterRecovery, inMemory,
       'session:messages should remain consistent after the write queue recovers')
 
+    const deletedHistory = modelBridgeHistoryDirectory(state.userData, recovered.id)
+    const retainedHistory = modelBridgeHistoryDirectory(state.userData, targetSession.id)
+    await mkdir(deletedHistory, { recursive: true })
+    await mkdir(retainedHistory, { recursive: true })
+    await writeFile(join(deletedHistory, 'route.json'), '{}')
+    await writeFile(join(retainedHistory, 'route.json'), '{}')
+    await coldModule.sessions.deleteSession(recovered.id)
+    await assert.rejects(readFile(join(deletedHistory, 'route.json')), /ENOENT/)
+    assert.equal(await readFile(join(retainedHistory, 'route.json'), 'utf8'), '{}', 'deleting one session preserves another bridge history')
+    assert.ok(!modelBridgeHistoryDirectory(state.userData, '../escape').includes('..'), 'session identifiers are hashed, not path segments')
     console.log('session-store-regression: all checks passed')
   } finally {
     if (previous === undefined) delete globals[STATE_KEY]