feat(status): show money-supply metric in /status

Adds economy.get_economy_stats() (single-scan total coins, house balance,
player-held coins, player count) and a "Rahavaru" field to /status, so admins
can see whether the sinks are keeping pace with minted income. Also removed a
duplicate bot_admin_check import.

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

tests/test_leaderboards.py

@@ -47,3 +47,31 @@ class TestGetAllLeaderboards:
         fish = run(economy.get_all_leaderboards())["fish"]
         counts = [c for _, c in fish]
         assert counts == sorted(counts, reverse=True)
+
+
+class TestEconomyStats:
+    def test_totals_split_house_from_players(self, fake_pb, monkeypatch):
+        monkeypatch.setattr(economy.house, "HOUSE_ID", 999)
+        monkeypatch.setattr(economy.house, "_house_pb_id", None)
+        # three players + the house
+        for uid, bal in [(1, 100), (2, 250), (3, 0)]:
+            run(economy.get_user(uid))
+            fake_pb.record_for(uid)["balance"] = bal
+        run(economy.get_user(999))
+        fake_pb.record_for(999)["balance"] = 5000
+
+        stats = run(economy.get_economy_stats())
+        assert stats["total_coins"] == 100 + 250 + 0 + 5000
+        assert stats["house_balance"] == 5000
+        assert stats["player_coins"] == 350
+        assert stats["player_count"] == 3   # house excluded
+
+    def test_no_house_configured(self, fake_pb, monkeypatch):
+        monkeypatch.setattr(economy.house, "HOUSE_ID", None)
+        run(economy.get_user(1))
+        fake_pb.record_for(1)["balance"] = 42
+        stats = run(economy.get_economy_stats())
+        assert stats["total_coins"] == 42
+        assert stats["house_balance"] == 0
+        assert stats["player_coins"] == 42
+        assert stats["player_count"] == 1