v2.0.15 — oumta-dashboard: dot color follows cluster outcome

The per-cluster dot now reflects how the workload ended up after the
cluster's events, not the worst thing that happened inside it: if the
most recent state transition in the cluster was "-> healthy", the dot
turns green even when the cluster contains earlier degraded/warning
events. Falls back to the existing dominantSev logic for clusters
without any state transition (e.g. rollout-only clusters).

Matches the reality that a rollout which briefly degrades and then
recovers is a normal, healthy outcome — not a "warning" forever.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

config.php

@@ -1,7 +1,7 @@
 <?php
 
 define('APP_NAME', 'hyprcrd');
-define('APP_VERSION', '2.0.14');
+define('APP_VERSION', '2.0.15');
 
 // APP_DEBUG: gates verbose error responses (curl traces, upstream bodies).
 // Off by default; enable via env for local troubleshooting only.