docs: CHANGELOG + REPORT — sparkyfitness finalization + validation

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+## 2026-07-03 — sparkyfitness FINALIZED + live-validated (both VERIFY markers resolved); REUSE probe-naming row
+
+The first worked example of the new `felhom-app-catalog` skill (felhom.eu). Both
+`VERIFY-BEFORE-FINALIZE` healthcheck guesses resolved by inspecting the real images on the demo box:
+frontend (Alpine/nginx) HAS BusyBox wget → drafted `wget --spider :80/` probe confirmed + kept;
+server HAS node v24.17.0 → node-exec `:3010/api/health` probe confirmed (path proven live:
+`{"status":"UP"}`). Frontend `container_name` renamed → `sparkyfitness` (= the stack name): the
+controller-side probe dials the exact-name container, fallback is the FIRST prefix match (could be
+the DB) — new REUSE.md §2 "Probe-container naming" row records the convention (verified in
+felhom-controller healthprobe.go). Mem-sum comment added (512+1024+256 = 1792M, value unchanged).
+Live-validated on demo via the real dashboard UI (sync + Frissítés): 3/3 containers healthy,
+controller probe `healthy: true` (http :80 → 200), `sparky.demo-felhom.eu` 200 via Traefik;
+data_key secrets untouched (server/db containers not recreated). Kept deployed.
+
 ## 2026-07-03 — docs: CLAUDE.md light expansion
 
 The minimal REUSE-rollout stub expanded to a proper (still ~30-line) CLAUDE.md: what the repo is