pmf-initlisted

# Init — App Design Guide > Before executing this workflow, read and apply `../HOST_CONTRACT.md`. Creates a per-app design guide `.lib.pen` file. The `.lib.pen` extension is required so Pencil can import it as a library in other `.pen` files. `material-design-guide.lib.pen` is kept as a shared library, and a separate file is created for each app. ## Step 0 — Environment Verification Verification is split into two groups. **Group A** is required for file operations, and **Group B** is required for Pencil/Dart operations. If Group A fails, stop immediately. Group B is verified after Step 2 completes (just before opening the Pencil file). ### Group A — File Operation Prerequisites (verified in Step 0) #### A-1. Verify Python 3.9+ Installation ```bash python3 --version ``` - Python 3.9 or higher → proceed to next verification - Missing or version too low → **stop**: > "Python 3.9 or higher is required. Please install it and try again." #### A-2. Verify materialyoucolor Package ```bash python3 -c "import materialyoucolor; print('ok')" ``` - `ok` output → proceed to next verification - ImportError → **stop**: > "Please run pip install materialyoucolor and try again." #### A-3. Verify Python Script Files Exist Resolve `<plugin-root>` from the shared host contract, then run: ```bash python3 -c "import pathlib; root=pathlib.Path('<plugin-root>'); [exit(1) for p in ['pencil/md3calc/hct_palette.py','pencil/md3calc/gen_dart.py'] if not (root/p).exists()]" ``` - Both fi