Fix sync options sent to the backend when pushing a site

[sejas]

Related issues

• Fixes STU-1003

Proposed Changes

• Fix options sent to the backend when pushing a site when selecting the All files and folders option.
• Add a specific test case to validate the conversion from tree to options.

Testing Instructions

• Checkout this branch and apply this diff

diff --git a/src/ipc-handlers.ts b/src/ipc-handlers.ts
index 2222476e..40fcbdbf 100644
--- a/src/ipc-handlers.ts
+++ b/src/ipc-handlers.ts
@@ -826,6 +826,8 @@ export async function pushArchive(
 		formData.push( [ 'options', optionsToSync.join( ',' ) ] );
 	}
 
+	console.log( 'formData', formData );
+	return { success: true }; // don't add this line if you want to test also the email
 	try {
 		await wpcom.req.post( {
 			path: `/sites/${ remoteSiteId }/studio-app/sync/import`,

• Run npm start
• Go to the sync tab and click push
• Select "All files and folders"
• Click Push
• Observe that it appears [ 'options', 'contents,plugins,themes,uploads' ] in the node console. Before this PR the options sent were only contents.
• Test other cases

Pre-merge Checklist

• Have you checked for TypeScript, React or other console errors?

[github-actions]

📊 Performance Test Results

Comparing 4b38140 vs trunk

site-editor

Metric	trunk	4b38140	Diff	Change
load	11553.00 ms	10735.00 ms	-818.00 ms	🟢 -7.1%

site-startup

Metric	trunk	4b38140	Diff	Change
siteCreation	128549.00 ms	123213.00 ms	-5336.00 ms	🟢 -4.2%
siteStartup	39805.00 ms	49092.00 ms	+9287.00 ms	🔴 23.3%

---

Results are median values from multiple test runs.

Legend: 🟢 Improvement (faster) | 🔴 Regression (slower) | ⚪ No change

[nightnei]

Works as expected 👍
I was thinking that we could optimize it to use just startsWith w/o trailing slash, but proposed way looks more clear and specific 👍

[katinthehatsite]

Thanks for fixing this, works well 👍