fix: address review comments

Author: akunft

specifications/SPEC_PLATFORM_SERVICE.md

@@ -204,7 +204,7 @@ ApplicationVersionDocument:
 ```mermaid
 graph TD
    A[User Request] --> X{External Token Provider?}
-   X -->|Yes| I[Create API Client with External Provider]
+   X -->|Yes| I_ext[Create API Client with External Provider]
    X -->|No| B{Token Cached?}
    B -->|Yes| C[Use Cached Token]
    B -->|No| D[OAuth Authentication]
@@ -219,6 +219,7 @@ graph TD
 
    H --> I[Create API Client]
    I --> J[Make API Request]
+   I_ext --> J
    J --> K[Return Results]
 
    L[Health Check] --> M[Check API Status]

src/aignostics/platform/_client.py

@@ -70,7 +70,11 @@ def __init__(self, cache_token: bool = True, token_provider: Callable[[], str] |
         Sets up resource accessors for applications, versions, and runs.
         """
         try:
-            logger.trace("Initializing client with cache_token={}, token_provider={}", cache_token, token_provider)
+            logger.trace(
+                "Initializing client with cache_token={}, token_provider={}",
+                cache_token,
+                type(token_provider).__name__ if token_provider is not None else None,
+            )
             self._api = Client.get_api_client(cache_token=cache_token, token_provider=token_provider)
             self.applications: Applications = Applications(self._api)
             self.runs: Runs = Runs(self._api)