fix: reorder dashlet tabs — attention first, open cases last

Move "needs attention" tab to the right (first in RTL), make it active
by default, and move "open cases" to the left (last).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

manifest.json

@@ -3,7 +3,7 @@
     "module": "SmartAssistant",
     "description": "Unified AI Assistant for Legal CRM — floating chat with case memory, office alerts, and AI Gateway integration",
     "author": "klear",
-    "version": "2.5.0",
+    "version": "2.5.1",
     "acceptableVersions": [
         ">=8.0.0"
     ],