chore: add calc timing logs

backend/services/calc_service.py

@@ -1,10 +1,27 @@
+import logging
+import time
 from typing import Any
 
 from api.core.Auth import AlterState
 from core.basic.character import createCharacter
 
 
+logger = logging.getLogger('dcalc.calc')
+
+
 def calculate(state: AlterState, config: dict[str, Any] | None) -> dict[str, Any]:
+    started_at = time.perf_counter()
     safe_config = config or {}
     character = createCharacter(state.alter, state.equVersion)
-    return character.calc(safe_config)
+    created_at = time.perf_counter()
+    result = character.calc(safe_config)
+    finished_at = time.perf_counter()
+    logger.info(
+        'calc completed alter=%s equVersion=%s create_ms=%.2f calc_ms=%.2f total_ms=%.2f',
+        state.alter,
+        state.equVersion,
+        (created_at - started_at) * 1000,
+        (finished_at - created_at) * 1000,
+        (finished_at - started_at) * 1000,
+    )
+    return result