fix(calm-suite): label save items plainly under a layout-scoped section header

The two save items read as duplicates ("CALM JSON — with layout" / "Save As… (new
file)"). Move the "what you get" into the section header and let the items be the
familiar pair:

  JSON w/ CALM Suite Layout
    Save        ⌘S
    Save as...  ⇧⌘S

Labels only; onsave/onsaveas unchanged. Studio 498 tests; build clean.

Claude-Session: https://claude.ai/code/session_01QDBBQRnkBcihrZRt24L41b
Signed-off-by: Eddie Knight <knight@linux.com>

Author: eddie-knight

calm-suite/calm-studio/apps/studio/src/lib/toolbar/Toolbar.svelte

@@ -287,14 +287,14 @@
 
 			{#if showExportMenu}
 				<div class="export-menu" role="menu" aria-label="Save and export options">
-					<div class="export-menu-label">Save (keeps your layout)</div>
+					<div class="export-menu-label">JSON w/ CALM Suite Layout</div>
 					<button
 						type="button"
 						class="export-menu-item"
 						role="menuitem"
 						onclick={() => handleExportOption(onsave)}
 					>
-						<span>CALM JSON — with layout</span>
+						<span>Save</span>
 						<span class="menu-shortcut">⌘S</span>
 					</button>
 					<button
@@ -303,7 +303,7 @@
 						role="menuitem"
 						onclick={() => handleExportOption(onsaveas)}
 					>
-						<span>Save As… (new file)</span>
+						<span>Save as...</span>
 						<span class="menu-shortcut">⇧⌘S</span>
 					</button>
 					<div class="export-menu-divider" role="separator"></div>

calm-suite/calm-studio/apps/studio/src/tests/components/Toolbar.test.ts

@@ -79,19 +79,19 @@ describe('Toolbar — button callbacks', () => {
 		expect(onopen).toHaveBeenCalledOnce();
 	});
 
-	it('calls onsave from the "with layout" item in the Save / Export menu', async () => {
+	it('calls onsave from the Save item in the Save / Export menu', async () => {
 		const onsave = vi.fn();
 		const { getByRole, getByText } = render(Toolbar, { props: makeToolbarProps({ onsave }) });
 		await fireEvent.click(getByRole('button', { name: /save or export diagram/i }));
-		await fireEvent.click(getByText('CALM JSON — with layout'));
+		await fireEvent.click(getByText('Save'));
 		expect(onsave).toHaveBeenCalledOnce();
 	});
 
-	it('calls onsaveas from the "Save As" item in the menu', async () => {
+	it('calls onsaveas from the "Save as..." item in the menu', async () => {
 		const onsaveas = vi.fn();
 		const { getByRole, getByText } = render(Toolbar, { props: makeToolbarProps({ onsaveas }) });
 		await fireEvent.click(getByRole('button', { name: /save or export diagram/i }));
-		await fireEvent.click(getByText(/Save As/));
+		await fireEvent.click(getByText('Save as...'));
 		expect(onsaveas).toHaveBeenCalledOnce();
 	});