fix: enable enforce-canonical-classes tailwind lint rule (#9427)

## Summary

Enable `better-tailwindcss/enforce-canonical-classes` lint rule and
auto-fix all 611 violations across 173 files. Stacked on #9417.

## Changes

- **What**: Simplify Tailwind classes to canonical forms via `eslint
--fix`:
  - `h-X w-X` → `size-X`
  - `overflow-x-hidden overflow-y-hidden` → `overflow-hidden`
  - and other canonical simplifications
- Enable `enforce-canonical-classes` as `'error'` in eslint config

## Review Focus

Mechanical auto-fix PR — all changes produced by `eslint --fix`. No
visual or behavioral changes; canonical forms are functionally
identical.

**Stack:** #9417 → **this PR** → PR 3 (class order)

Fixes #9300 (partial — 2 of 3 rules)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9427-fix-enable-enforce-canonical-classes-tailwind-lint-rule-31a6d73d365081a49340d7d4640ede45)
by [Unito](https://www.unito.io)

src/components/bottomPanel/tabs/terminal/BaseTerminal.vue

@@ -1,9 +1,6 @@
 <template>
-  <div
-    ref="rootEl"
-    class="relative h-full w-full overflow-hidden bg-neutral-900"
-  >
-    <div class="p-terminal h-full w-full rounded-none p-2">
+  <div ref="rootEl" class="relative size-full overflow-hidden bg-neutral-900">
+    <div class="p-terminal size-full rounded-none p-2">
       <div ref="terminalEl" class="terminal-host h-full" />
     </div>
     <Button

src/components/bottomPanel/tabs/terminal/LogsTerminal.vue

@@ -1,5 +1,5 @@
 <template>
-  <div class="h-full w-full bg-transparent">
+  <div class="size-full bg-transparent">
     <p v-if="errorMessage" class="p-4 text-center">
       {{ errorMessage }}
     </p>