Fix Service Bus lock renewal for long-running topic callbacks#51
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**Summary** - Adds parent-side proactive lock renewal for in-flight Azure topic messages while callback workers are still running. - Registers messages with `AutoLockRenewer` before starting callback execution. - Tracks in-flight callback tasks and releases tracking during settlement. - Cancels process workers only after the message lock has actually expired, preventing duplicate long-running processing after lock loss. - Adds configurable process fallback behavior with `TOPIC_CALLBACK_PROCESS_FALLBACK_MODE`. - Bumps package version to `0.0.26`. - Adds unit coverage for proactive renewal, lock-loss handling, fallback behavior, and in-flight cleanup. **Testing** - `python -m pytest` - `273 passed`, `1` existing warning.
shweta2101
approved these changes
Jun 1, 2026
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Summary
AutoLockRenewerbefore starting callback execution.TOPIC_CALLBACK_PROCESS_FALLBACK_MODE.0.0.26.Testing
python -m pytest273 passed,1existing warning.