Fix Stylelint errors: add @source to ignored at-rules, reorder @import before @source

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

.stylelintrc.json

@@ -3,7 +3,7 @@
     "rules": {
         "at-rule-no-unknown": null,
         "scss/at-rule-no-unknown": [true, {
-            "ignoreAtRules": ["use", "tailwind", "apply", "variants", "responsive", "screen", "layer"]
+            "ignoreAtRules": ["use", "tailwind", "apply", "variants", "responsive", "screen", "layer", "source"]
         }],
         "no-descending-specificity": null
     }

assets/app.scss

@@ -1,3 +1,3 @@
 @import "tailwindcss";
-@source "../templates";
 @import 'https://fonts.googleapis.com/css2?family=Intel+One+Mono:ital,wght@0,300..700;1,300..700&display=swap';
+@source "../templates";