fix(view): release cache refresh locks on errors

[joshtrichards]

• Resolves: #

Summary

Fix View::getCacheEntry() so that, after lockFile() succeeds, release of its file and parent-directory refresh locks is attempted in finally.

Previously, the broad LockedException fallback also caught failures during refresh or lock release. That could skip cleanup and return cached metadata, leaving locks held until request shutdown and obscuring the cause of later lock contention.

Lock contention during shallow scanning or initial lock acquisition remains best-effort and returns the existing cache entry. Once lockFile() succeeds, however, getCacheEntry() owns the file and parent-directory refresh locks. A subsequent failure during refresh work or cleanup is no longer treated as initial lock contention: the method attempts release in finally and propagates the failure.

Follow-up ideas:

• lockFile() does not roll back locks already acquired if acquiring a parent lock fails. Addressing that partial-acquisition cleanup remains out of scope. (Edit: implemented via fix(view): implement partial lock cleanup in lockFile #62349)
• basicOperation() has similar lock-cleanup responsibilities and could probably benefit from a similar approach. In particular, its current cleanup is inside a catch, so an unlockFile() failure could obscure the original storage exception.

TODO

• Check existing test assumptions
• Consider expanding existing coverage
• Decide about backporting: worthiness + risk(s)

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)
• Labels added where applicable (ex: bug/enhancement, 3. to review, feature component)
• Milestone added for target branch/version (ex: 32.x for stable32)

AI (if applicable)

• The content of this PR was partly or fully generated using AI [tests]