Blickfeld-qb2

* Bugfix: Improved beam control
* Bugfix: Increased auto-stop duration from 1 minute to 5 minutes to avoid too many device restarts

**⚠ The release cannot be downgraded after an update**

* Bugfix: Static IP configuration in WebGUI enforced DNS server
* Bugfix: Support timeout with blickfeld-qb2-method of Blickfeld Flow
* Bugfix: Allow authorized client connections from C++ clients
* Bugfix: Only allow yaw rotation of volume zone
* Bugfix: Reboot button in WebGUI with proper overlay

Highlights
* Introduced User Management BETA; stable release planned for mid of March
* Added [Python Developer](https://docs.blickfeld.com/qb2/Qb2/developer/client_libraries/python.html) guides for [Open3D point cloud fetch](https://docs.blickfeld.com/qb2/Qb2/guides/core_processing_point_cloud_o3d.html), [health monitoring](https://docs.blickfeld.com/qb2/Qb2/guides/diagnostics_health.html), [network configuration](https://docs.blickfeld.com/qb2/Qb2/guides/system_network_configuration.html), and [firmware update](https://docs.blickfeld.com/qb2/Qb2/guides/system_firmware_update.html)
* Added automatic Qb2 alignment deviation detection, which is configured / recalibrated with a sensor setup configuration
* Introduced one-click update button in WebGUI for enhanced convenience
* Logs of the [Blickfeld Flow](https://docs.blickfeld.com/qb2/Qb2/developer/modules/flow.html) are now available via the [Log](https://docs.blickfeld.com/qb2/Qb2/protocol/blickfeld/diagnostics/services/log.html) service, providing comprehensive insights
* Fixed startup of [Blickfeld Flow](https://docs.blickfeld.com/qb2/Qb2/developer/modules/flow.html) with wireless network configuration
* Minor bugfixes and stability updates

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* Improve blickfeld_qb2 Python package: Fix synchronous client stream methods and add missing imports
* Improve robustness of laser control circuit

Highlights
* Improved diagnostics page in the WebGUI now displays more details and key performance parameters in a single view.
* Introduced [Volume Coverage](https://docs.blickfeld.com/qb2/Qb2/protocol/blickfeld/percept_processing/data/state.html#_blickfeld_percept_processing_data_State_Volume) that states the relation between measured and interpolated regions, providing an estimation of confidence for volume measurements.
* Restructured & extended [Qb2 Manual](https://docs.blickfeld.com/qb2/Qb2/index.html) with version history
* Added [API call](https://docs.blickfeld.com/qb2/Qb2/protocol/blickfeld/system/services/firmware.html#FetchAndInstall) to update the Qb2 sensor to the latest or specified firmware
* Added [API service](https://docs.blickfeld.com/qb2/Qb2/protocol/blickfeld/diagnostics/services/log.html) for diagnostics log streaming. For now, Blickfeld Proxy logs are available, enabling the tracing of gRPC calls.
* Improved synchronization & delays of SetScanPattern, Start & Stop API calls
* Added more [filter parameters to PointCloud service](https://docs.blickfeld.com/qb2/Qb2/protocol/blickfeld/core_processing/config/point_cloud.html#_blickfeld_core_processing_config_PointCloud_Filter) to allow a more fine-grained return selection

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**⚠ Due to security patches, the release cannot be downgraded after an update**

* Bugfix for aggregated health API: The watch stream showed regularly the false-positive error "Push: Software module not reachable".
* Bugfix for the Point Cloud Type "Filtered": The most recent point cloud was not returned in snapshot mode.