fix: enable enforce-consistent-class-order tailwind lint rule (#9428)

## Summary

Enable `better-tailwindcss/enforce-consistent-class-order` lint rule and
auto-fix all 1027 violations across 263 files. Stacked on #9427.

## Changes

- **What**: Sort Tailwind classes into consistent order via `eslint
--fix`
- Enable `enforce-consistent-class-order` as `'error'` in eslint config
- Purely cosmetic reordering — no behavioral or visual changes

## Review Focus

Mechanical auto-fix PR — all changes are class reordering only. This is
the largest diff but lowest risk since it changes no class names, only
their order.

**Stack:** #9417 → #9427 → **this PR**

Fixes #9300 (partial — 3 of 3 rules)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9428-fix-enable-enforce-consistent-class-order-tailwind-lint-rule-31a6d73d3650811c9065f5178ba3e724)
by [Unito](https://www.unito.io)

src/components/sidebar/tabs/nodeLibrary/AllNodesPanel.vue

@@ -1,8 +1,8 @@
 <template>
-  <TabsContent value="all" class="flex-1 overflow-y-auto h-full">
+  <TabsContent value="all" class="h-full flex-1 overflow-y-auto">
     <!-- Favorites section -->
     <h3
-      class="px-4 py-2 text-xs font-medium uppercase tracking-wide text-muted-foreground mb-0"
+      class="mb-0 px-4 py-2 text-xs font-medium tracking-wide text-muted-foreground uppercase"
     >
       {{ $t('sideToolbar.nodeLibraryTab.sections.bookmarked') }}
     </h3>
@@ -22,7 +22,7 @@
     <div v-for="(section, index) in sections" :key="section.category ?? index">
       <h3
         v-if="section.category && sortOrder !== 'alphabetical'"
-        class="px-4 py-2 text-xs font-medium uppercase tracking-wide text-muted-foreground mb-0"
+        class="mb-0 px-4 py-2 text-xs font-medium tracking-wide text-muted-foreground uppercase"
       >
         {{ $t(NODE_CATEGORY_LABELS[section.category]) }}
       </h3>