refactor: share github remote parsing (#843)

packages/app/src/git/github-url.ts

@@ -1,42 +1,11 @@
-// TODO: this duplicates parseGitHubRepoFromRemote in packages/server/src/services/github-service.ts.
-// Consolidate into a shared package once we have a third caller.
+import { parseGitHubRemoteUrl } from "@server/shared/git-remote";
 
-// Note: SSH host aliases (e.g. `git@github-work:acme/repo.git` resolved via ~/.ssh/config)
-// are not detected here, so the GitHub action will silently not appear for those remotes.
 export function parseGitHubRepoFromRemote(remoteUrl: string | null | undefined): string | null {
   const trimmed = remoteUrl?.trim();
   if (!trimmed) {
     return null;
   }
-
-  let cleaned = trimmed;
-  if (cleaned.startsWith("git@github.com:")) {
-    cleaned = cleaned.slice("git@github.com:".length);
-  } else {
-    let parsed: URL;
-    try {
-      parsed = new URL(cleaned);
-    } catch {
-      return null;
-    }
-    if (parsed.hostname !== "github.com") {
-      return null;
-    }
-    try {
-      cleaned = decodeURIComponent(parsed.pathname.replace(/^\/+/, ""));
-    } catch {
-      return null;
-    }
-  }
-
-  cleaned = cleaned.replace(/\/+$/, "");
-  if (cleaned.endsWith(".git")) {
-    cleaned = cleaned.slice(0, -".git".length);
-  }
-  if (!cleaned.includes("/")) {
-    return null;
-  }
-  return cleaned;
+  return parseGitHubRemoteUrl(trimmed)?.repo ?? null;
 }
 
 export function buildGitHubBranchTreeUrl(input: {