[Feature] Integrate Automated Draw.io to PNG Export via GitHub Actions #14
Description
Currently, the README.md suggests manual or local mise exec scripts for converting .drawio files to .png. To ensure documentation parity in a multi-contributor environment, this process should be automated.
Proposed Solution:
Implement a GitHub Action using the rlespinasse/drawio-export-action.
Reasoning: This ensures that every PR containing a .drawio change automatically updates the corresponding image asset, preventing "stale" diagrams.
Technical Constraint: Must support the -s 2 (scale) and --transparent flags as specified in the current skill documentation.