Persistent Anthropic cost tracking to disk

Cost survives service restarts via /var/log/mc_anthropic_cost.json.
Saves after every API call. POS receipt prints at each $1 milestone.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

mc_aigod_paper.py

@@ -2017,7 +2017,23 @@ def _llm_call(model: str, system: str, user: str, config: dict,
 # --- Anthropic API cost tracking ---
 
 _anthropic_cost_lock = threading.Lock()
-_anthropic_total_cost = 0.0
+_anthropic_cost_file = "/var/log/mc_anthropic_cost.json"
+
+def _load_anthropic_cost():
+    try:
+        with open(_anthropic_cost_file) as f:
+            return json.load(f).get("total_cost", 0.0)
+    except:
+        return 0.0
+
+_anthropic_total_cost = _load_anthropic_cost()
+
+def _save_anthropic_cost():
+    try:
+        with open(_anthropic_cost_file, "w") as f:
+            json.dump({"total_cost": _anthropic_total_cost, "updated": time.strftime("%Y-%m-%dT%H:%M:%SZ")}, f)
+    except:
+        pass
 
 def _get_anthropic_cost():
     with _anthropic_cost_lock:
@@ -2072,6 +2088,7 @@ def _anthropic_call(model: str, system: str, user: str, config: dict,
     with _anthropic_cost_lock:
         prev_dollar = int(_anthropic_total_cost)
         _anthropic_total_cost += cost
+        _save_anthropic_cost()
         curr_dollar = int(_anthropic_total_cost)
         if curr_dollar > prev_dollar:
             log.info(f"Anthropic cost milestone: ${_anthropic_total_cost:.4f} / ${budget:.2f}")
@@ -3209,6 +3226,20 @@ def execute_response(response, context, config, praying_player=None):
                 )
             time.sleep(0.2)
 
+    # Flash title on the praying player's screen
+    if praying_player and (commands or message):
+        try:
+            rcon(
+                f'title {praying_player} times 5 40 15',
+                config["rcon_host"], config["rcon_port"], config["rcon_password"]
+            )
+            rcon(
+                f'title {praying_player} title {{"text":"Your prayers have been answered!","color":"gold","bold":true}}',
+                config["rcon_host"], config["rcon_port"], config["rcon_password"]
+            )
+        except Exception:
+            pass
+
     fallback = praying_player or (context["online_players"][0] if context["online_players"] else "")
     max_cmds = config.get("max_commands_per_response", 6)