test(e2e): widen keyless boot-smoke kill budgets to 30s

The keyless Loader-path smokes killed the child 10s after spawn, but a
loaded CI e2e runner routinely needs longer just to boot the unbuilt tsx
tree: on this branch's run the coding-agent smoke burned both retries and
failed at 30s wall-clock, and the sibling smokes passed only on retry x2
(master's latest run shows the same near-misses). The budget guards
against a HANG, not slowness — raise kill to 30s and the vitest test
timeout to 45s so a slow boot no longer masquerades as one.

examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts

@@ -67,8 +67,8 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> {
 
     const timer = setTimeout(() => {
       proc.kill('SIGKILL')
-      reject(new Error(`code-mode overlay did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`))
-    }, 10_000)
+      reject(new Error(`code-mode overlay did not exit within 30s. stdout:\n${stdout}\nstderr:\n${stderr}`))
+    }, 30_000)
 
     proc.on('exit', (code) => {
       clearTimeout(timer)
@@ -87,5 +87,5 @@ describe('code-mode overlay keyless smoke (real code-mode.cordis.yml via the Loa
     const { stdout, code } = await bootAndEof()
     expect(code).toBe(0)
     expect(stdout).toContain('code-mode agent ready.')
-  }, 15_000)
+  }, 45_000)
 })