chore: bump version to 0.6.3 (#264)

Claude-Session: https://claude.ai/code/session_0178nPaQqSGVe7Y1fR2ovDTK

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

Author: quickbeard

package.json

@@ -1,6 +1,6 @@
 {
   "name": "codev-ai",
-  "version": "0.5.19",
+  "version": "0.6.3",
   "description": "CoDev — AI Coding Agent Hub. Install, configure, and manage multiple AI coding agents.",
   "keywords": [
     "ai",