feat: add one-click git sync button

Combine fetch, pull with rebase, and push into one sync action
Keep remote dropdown focused on safe fetch actions
Block sync when uncommitted changes would conflict with rebase

packages/web/server/lib/git/service.js

@@ -1804,12 +1804,15 @@ export async function collectDiffs(directory, files = []) {
 
 export async function pull(directory, options = {}) {
   const git = await createGit(directory);
+  const pullOptions = options.rebase === true
+    ? { ...(options.options && typeof options.options === 'object' && !Array.isArray(options.options) ? options.options : {}), '--rebase': null }
+    : options.options || {};
 
   try {
     const result = await git.pull(
       options.remote || 'origin',
       options.branch,
-      options.options || {}
+      pullOptions
     );
 
     return {