chore: capture LiteLLM startup diagnostics

servers/bwh-hk-dc3/litellm/compose.yaml

@@ -12,10 +12,14 @@ services:
       LITELLM_MASTER_KEY: ${LITELLM_MASTER_KEY}
     volumes:
       - ./config.yaml:/app/config.yaml:ro
+      - ./runtime:/runtime
     entrypoint: ["python3", "-c"]
     command:
       - |
         import base64, os
+        log_fd = os.open("/runtime/litellm.log", os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o600)
+        os.dup2(log_fd, 1)
+        os.dup2(log_fd, 2)
         path = "/tmp/application_default_credentials.json"
         with open(path, "wb") as credential_file:
             credential_file.write(base64.b64decode(os.environ["GOOGLE_ADC_B64"]))

servers/bwh-hk-dc3/litellm/runtime/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore