Add a complete documentation subtree for the DeepLabCut-live GUI. New files include index, README, features, user guide (with overview), quickstart/install, camera backends (aravis backend and camera support), timestamp format, and a myst.yml site config. Update _toc.yml to add a DLC-Live section and link the new index, install and overview pages. These docs provide installation steps, backend recommendations, feature descriptions, processor/plugin guidance, recording/timestamp formats, and camera configuration details for the GUI.

Move DLC-Live GUI docs from docs/gui/dlc-live/... into docs/dlc-live/dlc-live-gui, update the table of contents to include the GUI under DeepLabCut-Live!, and remove the old placeholder. Add the main_window screenshot to the new static path. Revise documentation pages (index, overview, install) to improve structure and wording, add cross-links to quickstart and user guide, insert caution/important notes, and reference the Model Zoo (file:model-zoo). Update install instructions to require cloning from GitHub, add venv/activation notes, and change pip extras names to live-latest-pytorch / live-latest-tensorflow. Include temporary TODO/myst comments in myst.yml.

Rename the environment heading to explicitly mention virtual environments, emphasize TensorFlow availability on Windows for Python >3.10, and add an "Alternative: Install with conda" section. The new section shows how to create and activate a conda environment and provides pip editable install commands for PyTorch and TensorFlow backends (with links to official install guides). Also update the run instruction to allow invoking dlclivegui directly (or via uv).

Rewrite the DeepLabCut-Live-GUI overview: rename the app to dlclivegui and add startup instructions (activate env / uv run). Restructure the Main Window and workflow sections, add a startup screenshot, and clarify DLCLive and processor functionality with a new footnote linking to DLCLive processors. Expand Recording and Encoding sections with tips, controls, and a stronger warning about irreversible overlay recording. Add menu bar actions, keyboard shortcuts, small UI/wording tweaks, and various notes/tips to improve usability and clarity.

Move camera backend docs into the user_guide subtree, add camera setup link to the DLC-Live GUI index and TOC, and tidy backend documentation. Renamed aravis_backend.md and camera_support.md into docs/dlc-live/dlc-live-gui/user_guide/cameras_backends/, added an important note marking Aravis support as experimental, converted internal links to the {doc} role, and cleaned up the backend list (including a placeholder for GenTL). These changes surface camera setup in the GUI docs and improve clarity/structure.

Move camera backend docs into the user_guide TOC and update links; refresh dlc-live GUI docs to clarify backend behavior and installation. Key changes: fix TOC path and index reference for camera_support, add note about OpenCV resolution/FPS limitations, reorganize and reword camera_support.md (headings, supported backends, platform recommendations, installation steps, and comparison table), mark Aravis as experimental on macOS and update its docs with minor formatting, troubleshooting and platform notes. Small formatting and clarity improvements throughout.

Rename and relocate timestamp_format.md to docs/dlc-live/dlc-live-gui/user_guide/misc/timestamp_format.md and add the new file to _toc.yml so it appears in the documentation navigation. Also tidy up the page content: change the heading to "Video Timestamp Format" and pluralize "video(s)" in the introductory sentence.

Delete docs/dlc-live/dlc-live-gui/README.md and docs/dlc-live/dlc-live-gui/features.md as part of a documentation cleanup. Update any references or links pointing to these files if content was moved or consolidated elsewhere.

Correct the camera setup link path in the DLC Live GUI docs and add a note about OpenCV controls. The docs now warn that OpenCV resolution and FPS settings are best-effort and may be inconsistent depending on camera drivers and hardware.

Clarify and reorganize Aravis backend documentation: reword experimental note, introduce a file anchor for the page, and namespace Aravis-specific settings under an "aravis" key (nesting previous properties). Rename the property from `camera_id` to `device_id` in the table and examples, and update the camera support page to reference the Aravis doc anchor for details and troubleshooting.

Normalize heading capitalization and minor formatting in the camera backend docs. Add a reference link for the Aravis backend and reorganize the Quick installation guide into a tab-set with Aravis (Linux/macOS) and GenTL (Windows) installation instructions. Also adjust the 'Detailed Backend Documentation' heading to 'In more detail' and tidy related links and notes.