Relocates all example YAML files from the `examples/` directory to `data/examples/`.
Updates `docs/schema-design.md` to reflect the new path for example files.
- Introduce `scope`, `tags`, `min_version`, `homepage`, and `installation` fields for enhanced discoverability and guidance.
- Remove `install` and `compatibility` objects, replacing them with a simplified `installation` string field.
- Add `examples/` directory with full exemplar files for each extension type.
- Update `schema-design.md` to reflect new schema, clarify field definitions, and improve documentation structure.
- Renames the `description` field to `tagline` in schema and data files.
- Renames the `full_description` field to `description` in schema and data files.
- Updates all relevant YAML data files, documentation, and templates to reflect these changes.
- Adjusts character limits and descriptions for the new fields.
