v2.0.14 — ghost + spinner on card move

Moving a card to another bucket took a visible round-trip (PATCH +
reloadAll) during which the card sat unchanged in the source bucket,
leaving the user wondering if the drop registered. Now every
bucket-move path marks the affected cards `.card-moving` as soon as
the action fires: 50% opacity, dark scrim and a centred accent-ring
spinner. The next renderBoard() rebuilds the DOM so the class comes
off automatically — no explicit cleanup needed.

Call sites:
- drag-drop onto a bucket tile (single + multi-select)
- drag onto an existing bucket to nest it (auto-super-bucket create)
- context-menu → Bucket → <target>

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', '2.0.13');
+define('APP_VERSION', '2.0.14');
 
 // APP_DEBUG: gates verbose error responses (curl traces, upstream bodies).
 // Off by default; enable via env for local troubleshooting only.