test(runtime-host): migrate queue tests to typed requests

[liugddx]

Summary

Migrate the three stale RuntimeHostConnection alias calls left in execution-host-queue.test.ts after #3784 made typed request<K>() the sole operation API.

• queryTurn -> request('turn.query', ...)
• stopTurn -> request('turn.stop', ...)
• startTurn -> request('turn.start', ...)

Inputs and assertions are unchanged. This restores the Runtime Host TypeScript build on current main and allows native CI lanes to reach their actual tests.

Verification

• Core, Storage, MCP, Runtime, and Runtime Host builds passed locally.
• lint, format, and git diff --check passed.
• The complete queue suite currently cannot start on current main because fix(storage): converge duplicate session metadata migration 30 #3788 leaves message_admissions absent. That failure reproduces without this patch and is independent of the typed request migration.

Fixes #3790.

AI use

Codex located and migrated the three stale test calls and ran the listed checks.

[liugddx]

Superseded by #3796. The typed-request test migration cannot pass required CI independently because current main also needs the duplicate migration-30 convergence from #3788; #3796 keeps the two root-cause fixes as separate commits in one mergeable repair.