polish(economy): surface bank/lootbox/achievement stats in /stats and /adminview

- /stats and /profile stats now show lootboxes opened and achievements unlocked
  alongside the best streak.
- /adminview shows bank balance, achievements count, lootboxes opened, and any
  pending (escrowed) wager.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013VbAVsrZuYesea99mPMmPT

strings/admin.py

@@ -19,6 +19,9 @@ ADMINVIEW_UI: dict[str, str] = {
     "banned_yes":      "🚫 JAH",
     "banned_no":       "✅ Ei",
     "f_balance":       "💰 Saldo",
+    "f_bank":          "🏦 Pangas",
+    "f_extras":        "🏅 Muu",
+    "extras_val":      "Saavutusi: {ach}\nÕnnekaste: {lootboxes}\nOotel panus: {wager}",
     "f_exp":           "📊 EXP / Tase",
     "f_streak":        "🔥 Streak",
     "f_banned":        "🚫 Keelatud",

strings/economy.py

@@ -341,7 +341,7 @@ STATS_UI: dict[str, str] = {
     "social_field":    "🤝 Sotsiaalne",
     "social_val":      "Kingitud: {given}\nSaadud: {received}",
     "records_field":   "🔥 Rekordid",
-    "records_val":     "Pikim päevane streak: **{streak}** päeva",
+    "records_val":     "Pikim päevane streak: **{streak}** päeva\n🎁 Õnnekaste avatud: **{lootboxes}**\n🏅 Saavutusi: **{achievements}/{ach_total}**",
 }
 
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