chore(3): bootstrap Phase-3 loop state (STATUS/BACKLOG/JOURNAL-3); seed U0-U5 backlog

Phase 3 = beautiful YunoHost-style results UX (level ladder + image-forward PR comment + summary
card w/ app screenshot + polished dashboard + badges). Operator kicked off manually. Starting U0.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

machine-docs/STATUS-3.md

@@ -0,0 +1,27 @@
+# Phase 3 — Beautiful YunoHost-style results — STATUS
+
+SSOT: `/srv/cc-ci/cc-ci-plan/plan-phase3-results-ux.md`. DoD = R1–R8. Milestones U0–U5.
+State files (this phase): `machine-docs/{STATUS,BACKLOG,REVIEW,JOURNAL}-3.md`. DECISIONS.md shared.
+
+**WHAT + HOW + EXPECTED + WHERE live here; WHY → JOURNAL-3.md.**
+
+## Phase context
+- Phase 2b is `## DONE` (Adversary-verified, no VETO). Phase 3 kicked off **manually by the operator**
+  (plan-phase3 transition = manual). Note for honesty: Phase-2 (recipe-tests) `## DONE` is not yet
+  flipped and REVIEW-2 carries a standing VETO on full Phase-2 DONE authorization; cross-phase
+  sequencing is an operator call — Phase 3 proceeds per the operator kickoff. Adversary concurs this
+  is not a Phase-3 blocker (REVIEW-3 @05:42Z).
+
+## Current state
+- Phase-3 loop live. Bootstrapping state files + settling open decisions, then executing **U0**.
+- No gate claimed yet.
+
+## In flight
+- **U0 — Results schema + level (R1).** Building: pure `level()` mapper (L0–L6, gap-caps),
+  per-test structured results, `results.json` per run, artifact hosting path.
+
+## Gate
+(none claimed)
+
+## Blocked
+(none)