feat(github): support PR URLs in task creation dialog (#379)

apps/web/lib/api/domains/github-api.ts

@@ -3,6 +3,7 @@ import type {
   GitHubStatusResponse,
   GitHubOrg,
   GitHubRepoInfo,
+  GitHubPR,
   TaskPRsResponse,
   TaskPR,
   PRFeedback,
@@ -141,6 +142,19 @@ export async function searchOrgRepos(org: string, query?: string, options?: ApiR
   );
 }
 
+// PR info (lightweight)
+export async function fetchPRInfo(
+  owner: string,
+  repo: string,
+  number: number,
+  options?: ApiRequestOptions,
+) {
+  return fetchJson<GitHubPR>(
+    `/api/v1/github/prs/${encodeURIComponent(owner)}/${encodeURIComponent(repo)}/${number}/info`,
+    options,
+  );
+}
+
 // Remote repo branches
 export async function fetchRepoBranches(owner: string, repo: string, options?: ApiRequestOptions) {
   return fetchJson<{ branches: { name: string }[] }>(