feat(git): add multi-remote push with remote selection and fork-aware PR creation (#365)

* fix: Usage drop down should be scrollable

* fix: When there are multiple remotes, provide the user with an option of which branch to push to

* feat(gitview): add remote-push selection and auto checkout on create

* feat: enable selecting remote when creating PR

* fix: show PR icon in create button when not creating

* fix(pullrequest): drop remote picker and use explicit remote

* feat: add remote selection for PR status and creation

* fix: improve PR creation with selected remote and fork head

* chore(ui): simplify PR remote link UI

* fix(web): handle cross-repo PRs and branch validation

* feat: add remote selection for commit and push

* feat(git): delegate PR head source resolution to server

* chore(web): remove noisy PR creation logs

packages/web/src/api/github.ts

@@ -90,9 +90,14 @@ export const createWebGitHubAPI = (): GitHubAPI => ({
     return payload;
   },
 
-  async prStatus(directory: string, branch: string): Promise<GitHubPullRequestStatus> {
+  async prStatus(directory: string, branch: string, remote?: string): Promise<GitHubPullRequestStatus> {
+    const params = new URLSearchParams({
+      directory,
+      branch,
+      ...(remote ? { remote } : {}),
+    });
     const response = await fetch(
-      `/api/github/pr/status?directory=${encodeURIComponent(directory)}&branch=${encodeURIComponent(branch)}`,
+      `/api/github/pr/status?${params.toString()}`,
       { method: 'GET', headers: { Accept: 'application/json' } }
     );
     const payload = await jsonOrNull<GitHubPullRequestStatus & { error?: string }>(response);