FxJournalStats Badge on Free Embeds

Embeds on the Free plan now carry a small Made with FxJournalStats badge.

🏷️ What changes #

• Free embeds show a subtle badge that links back to FxJournalStats. It's faded until you hover over it, and on stat cards and bar, line and area charts it sits in its own row under the chart, so it never covers your data.
• Every paid plan removes the badge. Nothing to turn on: it disappears as soon as you're on a paid plan.
• Your charts and objectives otherwise work exactly as before.