Release 2026.08.02-1

SQLite replaces Postgres, and two fixes from using the thing.

- The database is a file under ./storage instead of a second container. Ten
  members never needed a database server, and the driver is pure Go, so the
  build stays CGO_ENABLED=0 and the dependency count is unchanged. One bind
  mount is now the whole backup: no pgdata, no healthcheck-gated depends_on,
  no startup retry loop. Timestamps are UTC text, idle_ttl is seconds, the
  divisive/unified boards carry their own stddev, and foreign keys are on by
  pragma. Tests get a database file each and run without any setup
- Invites are copied, not clicked. An invite is something to send, and the
  anchor opened the join form in the admin's own browser
- Feedback asks for more than faults: the footer reads "Ongelmia? Ideoita?
  Palautetta?" and the page behind it invites ideas rather than only bugs
- Kuuntele YouTubessa opens in a new tab, so a half-typed review survives it

lyrics.go

@@ -241,14 +241,14 @@ func (a *app) autoFetchLyrics(ctx context.Context, subID int64, title, artist st
 	if lyrics == "" {
 		return
 	}
-	tag, err := a.pool.Exec(ctx,
+	res, err := a.db.ExecContext(ctx,
 		`update submissions set lyrics = $2 where id = $1 and lyrics is null`,
 		subID, cleanLyrics(lyrics))
 	if err != nil {
 		slog.Error("save lyrics", "ctx", "submissions", "error", err, "submission", subID)
 		return
 	}
-	if tag.RowsAffected() > 0 {
+	if affected(res) > 0 {
 		slog.Info("lyrics found", "ctx", "submissions", "submission", subID)
 	}
 }