Note

Adds WebSocket reconnect with retries and ping timeout, conditionally sets auth header in Python clients, and surfaces connection-loss errors to prevent hangs.

• Server runtime (template/server/messaging.py):
  • WebSocket resilience: Add reconnect() with MAX_RECONNECT_RETRIES and PING_TIMEOUT; wrap send in retry loop catching ConnectionClosedError/WebSocketException and reconnecting.
  • Error propagation: On receiver teardown, enqueue Error and UnexpectedEndOfExecution for ongoing executions to avoid hangs.
  • Execution flow: Create per-execution message_id and Execution right before send; serialize request with _get_execute_request.
• Python client (python/e2b_code_interpreter/*):
  • Auth header handling: Set headers with X-Access-Token only if token present for both async and sync run_code and create_code_context.
• Changesets: Patch releases for @e2b/code-interpreter-template (add retry) and @e2b/code-interpreter-python (fix header issue).

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