Merge upstream origin/main (v2.60.0) with fork customizations preserved

Incorporates 78 upstream commits while preserving all local fork intent:
- Keep deleted: dhh-rails, kieran-rails, dspy-ruby, andrew-kane-gem-writer (FastAPI pivot)
- Merge both: ce-review (zip-agent-validator + design-conformance-reviewer wiring),
  kieran-python-reviewer (upstream pipeline + FastAPI conventions),
  ce-brainstorm/ce-plan/ce-work (upstream improvements + deploy wiring checks),
  todo-create (upstream template refs + assessment block),
  best-practices-researcher (upstream rename + FastAPI refs)
- Accept remote: 142 remote-only files, plugin.json, README.md
- Keep local: 71 local-only files (custom agents, skills, commands, voice)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

plugins/compound-engineering/skills/ce-review/references/review-output-template.md

@@ -83,6 +83,15 @@ Use this **exact format** when presenting synthesized review findings. Findings
 - Residual risks: No rate limiting on export endpoint
 - Testing gaps: No test for concurrent export requests
 
+### Zip Agent Validation
+
+- Evaluated: 8 zip-agent comments
+- Validated: 2 (appear as findings #3 and #6 above)
+- Collapsed: 6
+  - `app/services/order_service.rb:45`: "Missing error handling" -- handled by ApplicationService base class rescue
+  - `app/controllers/api/orders_controller.rb:18`: "Unbounded query" -- pagination enforced by ApiController concern
+  - _(4 more collapsed for stylistic/formatting concerns)_
+
 ---
 
 > **Verdict:** Ready with fixes
@@ -131,6 +140,7 @@ This fails because: no pipe-delimited tables, no severity-grouped `###` headers,
 - **Schema Drift Check section** -- results from schema-drift-detector. Omit if the agent did not run.
 - **Deployment Notes section** -- key checklist items from deployment-verification-agent. Omit if the agent did not run.
 - **Coverage section** -- suppressed count, residual risks, testing gaps, failed reviewers
+- **Zip Agent Validation section** -- summary of zip-agent comment evaluation: total, validated (with cross-references to findings table), collapsed (with reasons). Omit if the agent did not run.
 - **Summary uses blockquotes** for verdict, reasoning, and fix order
 - **Horizontal rule** (`---`) separates findings from verdict
 - **`###` headers** for each section -- never plain text headers