Fix flaky hosted API tests: unify SQLite timeout, increase httpx timeout, fix missing await

[devin-ai-integration]

Fixes two flaky test failures observed on main (workflow run, commit 11576ed):

• test_get_runs_in_queue_concurrency_limit_and_limit[1] — httpx.ReadError caused by sqlite3.OperationalError: database is locked
• test_delete_task_run_deletes_logs — httpx.ConnectTimeout

Changes

1. Unify SQLite busy_timeout to 60s for all modes (configurations.py)

The test-mode SQLite busy_timeout was 30s while production used 60s. Under heavy parallel test execution (pytest-xdist), the hosted API server subprocess and test process share the same SQLite file, and lock contention can exceed 30s. The connect_args timeout is also bumped from 30s to 60s to match.

2. Increase hosted_api_client httpx timeout to 30s (tests/fixtures/api.py)

The default httpx timeout of 5s is too aggressive when the hosted server is slow to respond under CI load. This is a broad fix that helps all tests using hosted_api_client.

3. Fix missing await on asyncio.sleep(1) (test_task_runs.py)

test_delete_task_run_deletes_logs had asyncio.sleep(1) without await, which creates a coroutine object that's immediately discarded. This turned the polling loop into a tight busy-loop hammering the database instead of yielding between retries.

Review checklist for humans

• Verify the 30s httpx timeout for hosted_api_client is appropriate — not so generous that it masks real server issues, but note it's still well under the 90s pytest-timeout
• The PRAGMA busy_timeout is now unconditionally 60s (no test/prod branch), while connect_args timeout still has a test-mode branch — confirm this asymmetry is acceptable
• The await asyncio.sleep(1) fix is clearly correct but verify the surrounding polling logic still has the right semantics

Checklist

• This pull request references any related issue by including "closes <link to issue>"
  • If no issue exists and your change is not a small fix, please create an issue first.
• If this pull request adds new functionality, it includes unit tests that cover the changes
• If this pull request removes docs files, it includes redirect settings in mint.json.
• If this pull request adds functions or classes, it includes helpful docstrings.

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[devin-ai-integration]

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[codspeed-hq]

Merging this PR will not alter performance

✅ 2 untouched benchmarks

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_{Comparing devin/1773342657-fix-flaky-hosted-api-tests (8b8a90e) with main (5188608)}