Add share cards

api/internal/httpapi/ws.go

@@ -3,7 +3,7 @@
 // Scope: push JSON snapshots to subscribed clients. We never expect
 // client payloads larger than a ping/pong and we don't negotiate
 // extensions (compression, fragmentation). Anything fancier is out of
-// scope for Phase 2b — upgrade to a real ws library once we can run
+// scope for Phase 2b, upgrade to a real ws library once we can run
 // `go mod tidy` in a real build environment.
 package httpapi