Consolidate PR review/rework pipelines — eliminate redundancy

[nextlevelshit]

Problem

We have 4 overlapping pipelines for the PR review→fix→reply cycle:

Pipeline	Type	Steps
ops-pr-review	Leaf	Review PR, post findings
ops-pr-rework	Leaf	Fetch → triage → fix → push (no reply, uses git add -A)
ops-pr-fix-review	Leaf	Fetch → triage → fix → push → reply (superset of rework)
impl-review-loop	Composition	impl-issue → ops-pr-review → ops-pr-rework → re-review

ops-pr-fix-review is a strict superset of ops-pr-rework. impl-review-loop hardcodes 2 iterations and chains leaf pipelines that already overlap.

Proposal

Leaf pipelines (granular, composable)

1. ops-pr-review (keep, existing) — Review a PR, produce structured findings artifact
2. ops-pr-triage (new, extracted from rework) — Classify findings as accept/reject/defer/skip
3. ops-pr-fix (new, extracted from rework) — Apply accepted fixes, run tests, commit, push
4. ops-pr-reply (new) — Post per-comment resolutions and summary on the PR

Composition pipelines (wire leafs together)

5. ops-pr-rework → composition of: ops-pr-triage → ops-pr-fix
6. ops-pr-fix-review → composition of: ops-pr-review → ops-pr-triage → ops-pr-fix → ops-pr-reply
7. impl-review-loop → composition of: impl-issue → ops-pr-fix-review (with loop/iteration config)

Cleanup

• Delete current monolithic ops-pr-rework.yaml (replace with composition version)
• Delete current monolithic ops-pr-fix-review.yaml (replace with composition version)
• Fix git add -A → targeted staging in ops-pr-fix
• Include GitHub Copilot/bot reviews in ops-pr-review and ops-pr-triage

Design principles

• Each leaf pipeline does ONE thing (single responsibility)
• Composition pipelines are thin orchestrations — no inline logic
• Same leaf steps are reusable across different compositions
• Loop iterations handled by composition config, not hardcoded steps

Acceptance criteria

• Extract 4 leaf pipelines from existing code
• Rewrite 3 composition pipelines as thin orchestrations
• Delete monolithic ops-pr-rework.yaml and ops-pr-fix-review.yaml
• git add -A replaced with targeted staging
• Copilot/bot reviews included in review extraction
• All existing pipelines that reference ops-pr-rework updated
• wave validate passes on all new pipelines

[nextlevelshit]

Progress

Minimal consolidation done:

• Deleted ops-pr-rework.yaml (superseded by ops-pr-fix-review)
• Updated impl-review-loop to use ops-pr-fix-review instead of ops-pr-rework

Remaining work (full decomposition per issue proposal):

• Extract 4 leaf pipelines from ops-pr-fix-review: ops-pr-triage, ops-pr-fix, ops-pr-reply
• Convert ops-pr-fix-review to composition of leafs
• This is a larger refactor — the current minimal fix resolves the redundancy without the maintenance overhead of 4 additional pipelines