feat(session-query): add model-facing tools (round 1)

packages/host/runtime/tests/host-runtime.spec.ts

@@ -141,6 +141,24 @@ describe('bootHost / startHost', () => {
     await handle.dispose()
   })
 
+  it('assembles workspace-authorized session query tools over the derived SQLite index', async () => {
+    const persistenceRoot = mkdtempSync(join(tmpdir(), 'dsh-boot-session-query-'))
+    const handle = await bootHost({
+      persistenceRoot,
+      workspaceContext: false,
+    })
+    expect(handle.ctx.get('sessionQuery')).toBeDefined()
+    expect(handle.ctx.tools.schemas().map(schema => schema.name)).toEqual(expect.arrayContaining([
+      'session_search',
+      'session_event_search',
+      'session_trace',
+      'session_event_trace',
+      'session_event_read',
+    ]))
+    expect(handle.ctx.tools.get('session_search')?.timeoutMs).toBe(30_000)
+    await handle.dispose()
+  })
+
   it('startHost assembles api + handler over the same defaults and dedupes dispose', async () => {
     const running = await boot()
     expect(running.defaults).toMatchObject({ provider: 'scripted', model: 'test-model' })