Feat/open projects config to any (#681)

* feat(server): derive owner/repo display name for any remote host

Generalize deriveProjectGroupingName so any remote:<host>/<segments...>
project key returns the last two path segments (owner/repo) instead of
just the trailing segment. Path-fallback for non-remote keys is unchanged.

Brings GitLab, Gitea, Bitbucket, and self-hosted remotes to parity with
the prior github.com-only behavior — no separate special-case needed.

* feat(app): show projects from any git remote in Projects settings

Remove the isSupportedProjectKey filter so workspaces with non-GitHub
remotes (GitLab, Gitea, Bitbucket, self-hosted, ssh-style) appear in the
Projects list and route to the project settings screen. The daemon RPCs,
config schema, and registry were already host-agnostic; this lifts a
client-side filter that hid them.

Also remove the now-vestigial hiddenUnsupportedRemoteCount field from
ProjectSummary, BuildProjectsResult, and UseProjectsResult — once the
filter is gone, the count is always zero and the field is dead state.
This is an internal app-package type, not a wire schema, so deletion is
safe.

* chore(app): simplify Projects empty state to "No projects yet"

Drop the "Non-GitHub remote projects aren't supported yet" empty-state
branch — it can no longer fire now that any git remote is shown. The
empty state is unconditional now.

* test(app): cover non-GitHub remote in projects-settings e2e

Add a fixture that creates a temp git repo with origin pointing at a
gitlab.com URL and exercises the same paseo.json read/edit/save flow
already covered for local repos. Verifies the project surfaces with the
"acme/app" display name and that the round-trip persists correctly.

Extracted the remote-setup branch in createTempGitRepo into a small
configureRemote helper to keep the main function under the cyclomatic
complexity limit.

---------

Co-authored-by: Mathias Kurz <mkurz@stamus-networks.com>

packages/app/e2e/projects-settings.spec.ts

@@ -14,6 +14,7 @@ interface ProjectsSettingsProject {
 
 interface ProjectsSettingsFixtures {
   editableProject: ProjectsSettingsProject;
+  gitlabRemoteProject: ProjectsSettingsProject;
 }
 
 const initialPaseoConfig = {
@@ -46,6 +47,22 @@ const test = base.extend<ProjectsSettingsFixtures>({
       path: repo.path,
     });
 
+    await client.close();
+    await repo.cleanup();
+  },
+  gitlabRemoteProject: async ({ page: _page }, provide) => {
+    const client = await connectNewWorkspaceDaemonClient();
+    const repo = await createTempGitRepo("projects-settings-gitlab-", {
+      paseoConfig: initialPaseoConfig,
+      originUrl: "https://gitlab.com/acme/app.git",
+    });
+    const openedProject = await openProjectViaDaemon(client, repo.path);
+
+    await provide({
+      name: openedProject.projectDisplayName,
+      path: repo.path,
+    });
+
     await client.close();
     await repo.cleanup();
   },
@@ -119,4 +136,16 @@ test.describe("Projects settings", () => {
     await saveProjectConfig(page);
     await expectProjectConfigSaved(editableProject);
   });
+
+  test("user edits worktree setup on a non-GitHub remote project", async ({
+    page,
+    gitlabRemoteProject,
+  }) => {
+    expect(gitlabRemoteProject.name).toBe("acme/app");
+    await openProjects(page);
+    await openProjectSettings(page, gitlabRemoteProject.name);
+    await editWorktreeSetup(page, updatedSetup);
+    await saveProjectConfig(page);
+    await expectProjectConfigSaved(gitlabRemoteProject);
+  });
 });