fix(circleci): skip HTTP 500 errors and apply TimeAfter window on full sync

[jbsmith7741]

Summary

Two bug fixes for the CircleCI workflow and job collectors:

1. Skip HTTP 500 responses from corrupt CircleCI Server records

CircleCI Server occasionally returns 500 Internal Server Error for pipelines whose internal records are corrupt or stuck (e.g. a pipeline exists in the DB but its /workflow endpoint errors). Previously, this caused ignoreDeletedBuilds to fall through and abort the entire collector subtask. Both the workflow and job collectors now use a renamed ignoreDeletedOrBrokenBuilds hook that treats 500 the same as 404 (data-retention deletion) — a non-fatal, per-item skip so collection continues past broken entries.

Before                                     After
─────────────────────────────────────────  ─────────────────────────────────────────
HTTP 404  →  ErrIgnoreAndContinue (skip)   HTTP 404  →  ErrIgnoreAndContinue (skip)
HTTP 500  →  error propagated, run aborts  HTTP 500  →  ErrIgnoreAndContinue (skip)

2. Apply SyncPolicy.TimeAfter window on full sync

The DB iterator clause that limits which pipelines/workflows trigger downstream API calls previously only activated when isIncremental == true. This meant a full sync with a TimeAfter policy still iterated every historical tool-layer row and issued an API request for each one. The condition is now if createdAfter != nil, so both incremental and windowed full syncs skip rows outside the time window.

The boundary condition also changed from > to >= so the exact bookmark timestamp is not silently dropped.

Before                                     After
─────────────────────────────────────────  ─────────────────────────────────────────
Full sync + TimeAfter  →  all rows iterated,    Full sync + TimeAfter  →  rows before
  API call per row regardless of age              window skipped, boundary inclusive
Incremental            →  rows after bookmark   Incremental            →  unchanged
  (exclusive)

Does this close any open issues?

Closes #8948

Screenshots

N/A — no UI changes.

Other Information

[klesh]

LGTM.
Thanks for your contribution.

BTW. I would like to know if you are interested in becoming an Apache Committer of the project? I would like to nominate you, please send me email: klesh@apache.org if you are interested. https://community.apache.org/contributors/becomingacommitter.html