test(cli): include Opus 5 in provider expectations

[dwyanewang]

Linked issue

Closes #2424.

Type of change

• Bug fix
• New feature (with prior issue + design alignment)
• Refactor / code improvement
• Docs

What does this PR do

The Claude model manifest now contains 12 entries after Opus 5 was added, but the CLI provider integration test still expected 11. That made cli-tests (shard 2/3) fail deterministically before it could verify the remaining provider commands.

This updates the CLI expectations to:

• include claude-opus-5 as the latest release
• describe claude-opus-4-8 as the previous release

The change is limited to the stale provider-test expectations.

How did you verify it

Before the change, I built the server stack and ran packages/cli/tests/15-provider.test.ts. The Claude assertion failed with:

AssertionError: claude output should match the current catalog size
12 !== 11

After the change, I ran the same provider test with the CI-pinned Codex CLI (@openai/codex@0.105.0), OpenCode, and an isolated CODEX_HOME. All 11 provider command tests passed, including the Claude catalog assertion.

I also ran:

npm run build:server
npm run format
npm run typecheck
npm run lint

Lint completed with 0 warnings and 0 errors.

Checklist

• One focused change. Unrelated cleanups split out.
• npm run typecheck passes
• npm run lint passes
• npm run format ran (Biome)
• UI changes include screenshots or video for every affected platform (not applicable; test-only change)
• Tests added or updated where it made sense