Add skill training advisor with recipe data and one-click goals.

Co-authored-by: Cursor <cursoragent@cursor.com>

game_data/ATTRIBUTION.md

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+# Game data attribution
+
+Recipe JSON files in `recipes/` are synced from the Idle Fantasy open-source game:
+
+- **Source:** https://github.com/tristinbaker/IdleFantasy
+- **Path:** `app/src/main/assets/data/recipes/`
+- **License:** GNU General Public License v3.0
+
+Refresh with: `python scripts/sync_game_data.py`
+
+The `manifest.json` file records the upstream git ref used for the last sync.