docs(P00): research findings + persona assessment

---ci---
project: acdl
phase: 0
milestone: v1.30
status: research
---/ci---

.ciagent/CHECKPOINT.json

@@ -1,10 +1,10 @@
 {
   "phase": 0,
-  "stage": "clarify",
+  "stage": "research",
   "milestone": "v1.30",
   "phase_role": "pre_execution",
   "attempts": 0,
-  "updated_at": "2026-08-20T13:25:00Z",
+  "updated_at": "2026-08-20T13:35:00Z",
   "project": "acdl",
   "projects": ["acdl", "nova-blockchain-exchange"],
   "active_milestone": "v1.30",
@@ -23,5 +23,5 @@
     "branches_deleted": true,
     "releases_created": true
   },
-  "notes": "v1.30 Phase 0 CLARIFY complete. D-241 (discrete artifact, overrides STATE.md intake assumption 3), D-242 (narrow render_pptx.py extension), D-243 (month-only date anchor). STATE.md intake assumption 3 overridden. Spec §7 Q1-Q4 auto-resolved at full autonomy. Next: RESEARCH."
+  "notes": "v1.30 Phase 0 RESEARCH complete. R1-R8: render pipeline behavior+limits, smoke-test conventions, Marp frontmatter/footer/notes, theme enforcement, python-pptx install (resolved), vision grounding, CAP-024 non-collision, slides.yml non-interference. PERSONAS.md: lead-developer + backend-engineer + ci-doc-writer (phase-specific) + ci-cli-engineer. frontend/data/security deactivated. Next: PLAN."
 }