fix(shell): stop clipping last terminal row on alt-screen

src/apps/shell/public/page-css.test.ts

@@ -0,0 +1,17 @@
+import { readFileSync } from 'node:fs';
+import { join } from 'node:path';
+import { describe, expect, it } from 'vitest';
+
+const css = readFileSync(join(__dirname, 'page.css'), 'utf8');
+
+describe('shell page.css terminal rendering', () => {
+  it('does not clip the last terminal row on the alternate screen buffer', () => {
+    // A clip-path inset on .alt-screen .xterm-screen hides the bottom row of
+    // TUI apps (e.g. the Claude Code mode/status line). Regression guard for
+    // the workaround that amputated one full row of content.
+    const altScreenBlocks = css.match(/\.alt-screen[^{]*\{[^}]*\}/g) ?? [];
+    for (const block of altScreenBlocks) {
+      expect(block).not.toMatch(/clip-path/);
+    }
+  });
+});

src/apps/shell/public/page.css

@@ -346,11 +346,6 @@
   display: none !important;
 }
 
-/* Clip the last row — 17px ≈ 14px font × 1.2 line-height */
-.page-shell .alt-screen .xterm-screen {
-  clip-path: inset(0 0 17px 0);
-}
-
 /* ── Browser pane ─────────────────────────────────────────────────── */
 .page-shell .browser-nav {
   display: flex;