fix(forge): preserve non-default port in forge web URLs (#2478)

"Open in browser" links for a self-hosted forge served on a non-standard
port (e.g. Forgejo/Gitea on :60443) dropped the port, producing
https://host/owner/repo/... instead of https://host:60443/owner/repo/...,
which 404s or hits the wrong service.

parseGitRemoteLocation discarded parsed.port (GitRemoteLocation had no
port field), and buildForgeBranchTreeUrl / buildForgeBlobUrl rebuilt the
origin from the portless host. Preserve the port on GitRemoteLocation and
reattach it in the web-URL builders, only for self-hosted http(s) origins
(an SSH port isn't the web port; a canonicalized cloud host uses the
default port). Host-identity matching (forge detection, cloud-host checks)
stays port-agnostic.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

packages/protocol/src/git-remote.test.ts

@@ -27,3 +27,25 @@ describe("isCompleteGitRemote", () => {
     }
   });
 });
+
+describe("parseGitRemoteLocation port", () => {
+  it("preserves an explicit non-default port from an https remote", () => {
+    expect(parseGitRemoteLocation("https://home-git.example.com:60443/team/repo.git")?.port).toBe(
+      "60443",
+    );
+  });
+
+  it("preserves a port from a plain http remote", () => {
+    expect(parseGitRemoteLocation("http://internal.example.com:3000/team/repo.git")?.port).toBe(
+      "3000",
+    );
+  });
+
+  it("omits the port for a default-port remote", () => {
+    expect(parseGitRemoteLocation("https://github.com/acme/repo.git")?.port).toBeUndefined();
+  });
+
+  it("has no port for an scp-form remote", () => {
+    expect(parseGitRemoteLocation("git@host.example.com:team/repo.git")?.port).toBeUndefined();
+  });
+});

packages/protocol/src/git-remote.ts

@@ -11,6 +11,13 @@ const TRANSPORT_BY_PROTOCOL: Record<string, GitRemoteLocation["transport"]> = {
 export interface GitRemoteLocation {
   transport: "scp" | "ssh" | "http" | "https";
   host: string;
+  /**
+   * Explicit non-default port from the remote (e.g. a self-hosted forge on
+   * `:60443`), or undefined for a default-port or scp-form remote. Kept separate
+   * from `host` so host-identity matching (forge detection, cloud-host checks)
+   * stays port-agnostic; only consumers that reconstruct a URL (web links) use it.
+   */
+  port?: string;
   path: string;
 }
 
@@ -71,7 +78,7 @@ export function parseGitRemoteLocation(remoteUrl: string): GitRemoteLocation | n
   const normalizedPath = normalizeRemotePath(path);
   if (!isValidRemoteHost(host) || !normalizedPath) return null;
 
-  return { transport, host, path: normalizedPath };
+  return { transport, host, port: parsed.port || undefined, path: normalizedPath };
 }
 
 export function parseGitHubRemoteIdentity(path: string): GitHubRemoteIdentity | null {