Add CAD_Extruder

[Physic69]

No description provided.

[shockley6668]

Thanks for the Stage 3 submission. The concept and code structure look promising, but several required deliverables are still incomplete:

1. Add the final demo video and replace all TO ADD / <INSERT_YOUTUBE_LINK_HERE> placeholders.
2. Rename docs/architechure.md to docs/architecture.md, or update every link to the actual filename.
3. Document one complete command or launch sequence that starts both vision_node and cad_writer_node. The current Quick Start starts only the perception node.
4. Add the referenced benchmark logs/screenshots and update the incomplete status in README.
5. Rename the showcase file using the required format, for example Physic69-Project-InteractiveAICADExtractor.md, and complete the PR description.

Please also document how to configure the hard-coded camera, model, vocabulary, and output paths. Once the demo, documentation link, and complete startup workflow are added, the PR can be reviewed again.