fix(poster-cleanarr): bypass the GET cache on status polls

[chodeus]

Problem

Poster Cleanarr scans appeared to hang: the backend job finished in ~20 seconds, but the UI kept showing the scanning spinner for ~5 minutes, and retrying or navigating away restarted the wait.

Three pieces combine to cause it:

1. Scan jobs are enqueued without a module_name in their payload (backend/api/posters.py), so GET /api/jobs/{id}/log-tail takes its no-module-log early return and echoes next_offset back unchanged — the poll URL never varies between calls.
2. tailJobLog (frontend/src/utils/api/posters.js) called apiCore.get without opting out of the cache, and apiCore.get caches GET responses for 5 minutes by default.
3. pollJobUntilDone polls every 1.5s until it sees a terminal status — but after the first real fetch, every subsequent poll of the identical URL was served the cached running response until the TTL expired.

The cleanup LiveLogModal shares tailJobLog, so a cleanup job's final status was likewise masked for up to 5 minutes after the last log line.

Fix

Pass useCache: false on the two live-status reads:

• tailJobLog — the job log-tail poller (scan spinner + cleanup modal)
• getExecutionStatus — live module execution status shown when expanding a running job on the Jobs page, previously also on the default 5-minute cache

Audit of the same class

Swept every apiCore.get for status/poll reads served by the default cache. All other pollers already opt out or use deliberate short TTLs: fetchRunStates (30s TTL, poll loops pass useCache: false), getJob (5s TTL, Jobs page poll passes useCache: false), getStats (30s), listJobs (10s), cl2k seasonsStatus/uploadStatus, poster-self-heal, border-replacerr preview, and webhook provision status (all useCache: false).

Verification

• npm --prefix frontend run lint — pass
• npx prettier --check src — pass
• Backend job table confirmed healthy throughout (all scan jobs success within seconds); this is purely a frontend read-path fix.

Summary by CodeRabbit

• Bug Fixes
  • Execution status updates now display the latest available information instead of potentially cached results.
  • Job log polling now reflects current output and terminal statuses more reliably.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

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Run ID: 16659c9b-610a-47f8-84cb-fed05c2f6e0f

📥 Commits

Reviewing files that changed from the base of the PR and between 11f0c7d and b7be562.

📒 Files selected for processing (2)

• frontend/src/utils/api/modules.js
• frontend/src/utils/api/posters.js

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📝 Walkthrough

Walkthrough

The API client now bypasses GET caching for execution status and job log polling. The job log documentation describes the cache bypass. Request parameters and endpoints remain unchanged.

Changes

Execution polling freshness

Layer / File(s)	Summary
Disable caching for polling requests frontend/src/utils/api/modules.js, frontend/src/utils/api/posters.js	getExecutionStatus and tailJobLog pass cache bypass options to apiCore.get. The tailJobLog documentation reflects this behavior.

Estimated code review effort: 2 (Simple) | ~5 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: bypassing the GET cache for status polling.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/uncached-status-polls

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