web: disallow crawlers and quiet the game port

Adds robots.txt with Disallow: / plus noindex/X-Robots-Tag on the site and app. The v5 server treats an HTTP request as a malformed frame, closes silently before HELLO, and suppresses the common TLS scanner noise. Deploy now verifies robots.txt.

1 files changed, 1 insertions, 0 deletions

diff --git a/web/play/src/slots.ts b/web/play/src/slots.ts
index cfc9070..c8af52a 100644
--- a/web/play/src/slots.ts
+++ b/web/play/src/slots.ts
@@ -68,6 +68,7 @@ export function renderSlots(
       const tile = node("div", "tile", symbol);
       tile.classList.add(`sym-${symbol}`);
       if (active) tile.classList.add("spinning");
+      if (!active && flat.length === 0) tile.classList.add("placeholder");
       if (!active && (view.win_cells ?? []).includes(index)) tile.classList.add("win");
       tiles.push(tile);
       reel.append(tile);