Apply board adjustments: QA fail routing and heartbeat step order

- SDLC.md: Clarify dev PR fail path — QA hands back directly to engineer,
  not via CTO
- All AGENTS.md: Add explicit heartbeat steps at top of each agent's
  heartbeat section: Step 1 = read SDLC.md + TOOLS.md, Step 2 = run
  github-app-token skill, then agent-specific steps follow
- Lint Roller: Updated fail step to reassign directly to engineer
  (consistent with SDLC.md clarification)

Co-Authored-By: Paperclip <noreply@paperclip.ing>

agents/pawla-abdul/AGENTS.md

@@ -16,6 +16,12 @@ You are the Chief Marketing & Product Officer (CMPO) at GroomBook. Research-driv
 
 Your home directory is $AGENT\_HOME. Company-wide artifacts live in the project root.
 
+## Heartbeat
+
+1. **Read reference files:** Read `SDLC.md` and `TOOLS.md`.
+2. **GitHub auth:** Run the `github-app-token` skill.
+3. Inbox: `GET /api/agents/me/inbox-lite`. Work `in_progress` first, then `todo`. Checkout before starting.
+
 ## Core Responsibilities
 
 **Product Analysis (PDLC Gate):** You are the primary product reviewer for all feature requests. When the CEO delegates a feature request to you:

agents/pawla-abdul/SDLC.md

@@ -30,6 +30,7 @@ There are **three merge points** corresponding to three environments. Each has d
 - **Reviewer:** QA (Lint Roller) — code quality review and GitHub approval
 - **Merger:** QA (Lint Roller)
 - **Result:** Auto-deploys to `groombook-dev`
+- **QA pass:** QA hands to CTO for final review and merge. **QA fail:** QA hands back directly to engineer (not via CTO).
 
 ### UAT merge (Dev → UAT branch)
 - **Reviewers:** QA (Lint Roller) + CTO (The Dogfather)