Trace back everything (tested)

Signed-off-by: Asai Neko <sugar@sne.moe>

config.default.yaml

@@ -3,6 +3,7 @@ server:
     address: :8000
     external_url: https://example.com
     debug_mode: false
+    log_level: debug
 database:
     type: postgres
     host: 127.0.0.1
@@ -38,4 +39,4 @@ kyc:
     ali_access_key_id: example
     ali_access_key_secret: example
 tracer:
-    otel_controller_endpoint:
+    otel_controller_endpoint: localhost:4317