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/helpers/workspace.ts

@@ -9,10 +9,35 @@ interface TempRepo {
   cleanup: () => Promise<void>;
 }
 
+async function configureRemote(input: {
+  repoPath: string;
+  withRemote: boolean;
+  originUrl: string | undefined;
+}): Promise<void> {
+  const { repoPath, withRemote, originUrl } = input;
+  if (withRemote) {
+    // Deterministic local remote to avoid relying on external auth/network in e2e.
+    const remoteDir = path.join(repoPath, "remote.git");
+    await mkdir(remoteDir, { recursive: true });
+    execSync(`git init --bare -b main ${remoteDir}`, { cwd: repoPath, stdio: "ignore" });
+    execSync(`git remote add origin ${remoteDir}`, { cwd: repoPath, stdio: "ignore" });
+    execSync("git push -u origin --all", { cwd: repoPath, stdio: "ignore" });
+    return;
+  }
+  if (originUrl) {
+    // Daemon reads origin for project grouping; no fetch occurs, so a synthetic URL is fine.
+    execSync(`git remote add origin ${JSON.stringify(originUrl)}`, {
+      cwd: repoPath,
+      stdio: "ignore",
+    });
+  }
+}
+
 export const createTempGitRepo = async (
   prefix = "paseo-e2e-",
   options?: {
     withRemote?: boolean;
+    originUrl?: string;
     paseoConfig?: Record<string, unknown>;
     files?: Array<{ path: string; content: string }>;
     branches?: string[];
@@ -74,14 +99,7 @@ export const createTempGitRepo = async (
     execSync("git checkout main", { cwd: repoPath, stdio: "ignore" });
   }
 
-  if (withRemote) {
-    // Deterministic local remote to avoid relying on external auth/network in e2e.
-    const remoteDir = path.join(repoPath, "remote.git");
-    await mkdir(remoteDir, { recursive: true });
-    execSync(`git init --bare -b main ${remoteDir}`, { cwd: repoPath, stdio: "ignore" });
-    execSync(`git remote add origin ${remoteDir}`, { cwd: repoPath, stdio: "ignore" });
-    execSync("git push -u origin --all", { cwd: repoPath, stdio: "ignore" });
-  }
+  await configureRemote({ repoPath, withRemote, originUrl: options?.originUrl });
 
   return {
     path: repoPath,