* Refactor web examples and tutorials
- Consolidate web/docs and web/samples into web/examples
- Remove literal programming blocks from Markdown tutorials
- Replace tutorial_template.html with a fully embedded template in serve.py
- Move serve.py to web/examples/serve.py and update dependency rules
- Update filament-js wrapper to expose _malloc, _free and set GEN_MIPMAPPABLE usage
- Update sample materials and WebGL asset generation within web/examples/CMakeLists.txt
- Add python venv instructions and usage details to web/README.md
- Remove obsolete examples, Pipfile, and demo templates
* Transfer web tutorials and samples to docs_src
- Introduce copy_web_docs.py api to deploy and rewrite web sample outputs into the docs output tree
- Hook copy_web_docs into docs_src/build/run.py natively
- Configure duplicates.json to map WebGL outputs to embedded .md docs
- Strip html skeleton out of examples in run.py so they map into markdown cleanly
- Update update-docs workflow to pre-build the WebGL target
- Remove obsolete remote docs path from src_raw
- Add explanatory comments to copy_web_docs.py and run.py
- Add index page with thumbnails for Web Tutorials and samples
- Add github link to page
- Fix link in contributing.md
- Small update to docs_src/README.md
- Remove logo in the core docs
- Move branching.md and release_guide.md to /docs_src
- Add "under construction" warning for the web samples
- Update matdbg README.md
- Use mdbook to generate a book from collection of documents
- documents are
- copied and processed from READMEs
- original content stored in the docs_src folder
- markdeep docs transformed into embedded html
- Main logic is in script docs_src/build/run.py
