WIP - improvements to token usage tracking, simulator added for live testing, improvements to file loading

test_simulation_files/config.json

@@ -0,0 +1,16 @@
+{
+  "database": {
+    "host": "localhost",
+    "port": 5432,
+    "name": "testdb",
+    "ssl": true
+  },
+  "cache": {
+    "redis_url": "redis://localhost:6379",
+    "ttl": 3600
+  },
+  "logging": {
+    "level": "INFO",
+    "format": "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
+  }
+}