Reorder theme files + sync script rebuilds custom vars in standard order

Standard themes reorganized: Foundation → Layout → Navigation →
Forms → Components (alphabetical) → Bootstrap → Custom → Extensions

Sync script now fully rebuilds the custom file's :root block in
starter file order, preserving user values while reordering.
Missing variables are inserted at their correct position.

Bump 03.10.04

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

src/joomla.asset.json

@@ -17,7 +17,7 @@
 			"defgroup": "Joomla.Template.Site",
 			"ingroup": "MokoCassiopeia.Template.Assets",
 			"path": "./media/templates/site/mokocassiopeia/joomla.asset.json",
-			"version": "03.10.03",
+			"version": "03.10.04",
 			"brief": "Joomla asset registry for MokoCassiopeia"
 		}
 	},