feat(hub): friendlier welcome page, link previews, robots.txt and favicon

Welcome page: privacy said once, a three-step "how it works", a
documentation box, download (green) and legal links under the sign-in
form, on a dark gradient backdrop covering the whole page.
Link previews: Open Graph tags in the app shell, rendered for
identity.id, with the square icon as image.
robots.txt, favicon and touch icon served at the origin root.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/app.py b/packages/meshbay-hub/src/meshbay_hub/app.py
index b1d9626..7ccf598 100644
--- a/packages/meshbay-hub/src/meshbay_hub/app.py
+++ b/packages/meshbay-hub/src/meshbay_hub/app.py
@@ -37,6 +37,7 @@ from meshbay_hub.api.signaling import router as signaling_router
 from meshbay_hub.api.users import router as users_router
 from meshbay_hub.api.users import set_config as users_set_config
 from meshbay_hub.api.webapp import ASSET_V, CSP, STATIC_DIR
+from meshbay_hub.api.webapp import configure as webapp_configure
 from meshbay_hub.api.webapp import router as webapp_router
 from meshbay_hub.auth import generate_hub_keypair, load_hub_keypair
 from meshbay_hub.config import HubConfig
@@ -97,6 +98,9 @@ def create_app(cfg: HubConfig | None = None) -> FastAPI:
     from meshbay_hub.config import load_config
     if cfg is None:
         cfg = load_config()
+    # Here rather than in the lifespan: the shell is served by routes that exist
+    # as soon as the app does, and a test client need not start it to read them.
+    webapp_configure(cfg.identity.id)
 
     @asynccontextmanager
     async def lifespan(app: FastAPI):