Remove old unused files and clean up repository structure

Agent-Logs-Url: https://github.com/jquery-validation/validation-content/sessions/5608e6dd-347c-4281-81b1-3c53a3aeeac1

Co-authored-by: bytestream <1788397+bytestream@users.noreply.github.com>

Author: Copilot

Gruntfile.js

@@ -53,8 +53,8 @@ To test the site locally:
 - `documentation.md` - API documentation
 - `contribute.md` - Contribution guide
 - `reference.md` - General guidelines and reference
-- `entries/` - XML documentation entries (for API methods)
-- `pages/` - Original content files (kept for reference)
+- `_entries/` - Markdown documentation entries (for API methods, converted from XML)
+- `_layouts/` - Jekyll layout templates
 
 ### Deployment
 

README.md

@@ -8,14 +8,8 @@ markdown: kramdown
 
 # Exclude from processing
 exclude:
-  - Gruntfile.js
-  - package.json
-  - package-lock.json
   - node_modules
   - config.json
-  - config-sample.json
-  - entries2html.xsl
-  - notes.xsl
   - README.md
   - LICENSE-MIT.txt
   - .gitignore
@@ -24,8 +18,6 @@ exclude:
   - Gemfile
   - Gemfile.lock
   - GITHUB_PAGES_SETUP.md
-  - entries
-  - convert_entries.py
   - CONVERSION_NOTES.md
 
 # Collections