fix(fs): ignore ETIMEDOUT in scandir on network mounts

[sentry]

Previously, ETIMEDOUT errors encountered during readdir operations on network or cloud-mounted filesystems (e.g., CloudStorage, Ubuntu server mounts) were being reported to Sentry. While the filesystem scan itself gracefully recovers from these transient errors by returning an empty list and continuing, the isIgnorableFileError() function did not include ETIMEDOUT in its allow-list. This led to noisy, spurious error reports in Sentry.

This change updates src/lib/dsn/fs-utils.ts to add ETIMEDOUT to the list of ignorable file system error codes. This ensures that transient connection timeouts during filesystem scans are no longer captured by Sentry, reducing noise without altering the scan's behavior.

Fixes CLI-1ZB

_{Comment @sentry <feedback> on this PR to have Autofix iterate on the changes.}

[github-actions]

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[github-actions]

Codecov Results 📊

✅ Patch coverage is 100.00%. Project has 5334 uncovered lines.
✅ Project coverage is 81.82%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
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+ Coverage    81.81%    81.82%    +0.01%
==========================================
  Files          423       423         —
  Lines        29343     29343         —
  Branches     19118     19119        +1
==========================================
+ Hits         24006     24009        +3
- Misses        5337      5334        -3
- Partials      1989      1988        -1

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[jared-outpost]

Rebuilt this branch on current main — it had diverged with no common ancestor (created before the pnpm-workspace restructure at #1254), so it couldn't be rebased normally and showed as conflicting.

Verified the bug still exists: isIgnorableFileError in packages/cli/src/lib/dsn/fs-utils.ts handles ENOENT/EACCES/EPERM/EISDIR/ENOTDIR/EINVAL/ELOOP but not ETIMEDOUT. Re-applied the one-line allow-list addition at the file's current location and added an ETIMEDOUT case to fs-utils.test.ts. Lint, typecheck, and the fs-utils tests pass locally; PR is now mergeable.