v2.0.16 — oumta-dashboard: green dot for rollout-only clusters

Clusters with no state-transition events (e.g. a clean rollout that
didn't cause a degradation) now show a green dot instead of blue.
Rationale: absence of a transition means the workload stayed in its
existing state — the rollout went through unscathed, which is the
healthy outcome a reader is scanning for.

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', '2.0.15');
+define('APP_VERSION', '2.0.16');
 
 // APP_DEBUG: gates verbose error responses (curl traces, upstream bodies).
 // Off by default; enable via env for local troubleshooting only.