chore(pr-template): Consolidate PR templates into PULL_REQUEST_TEMPLATE directory

[aRustyDev]

Summary

Consolidates PR templates by moving the existing default template into the .github/PULL_REQUEST_TEMPLATE/ directory alongside the wiki-update template. This follows GitHub's convention for multiple PR templates.

Related Issues

Type of Change

• CI/CD

MCP Server(s) Affected

None - this is a repository configuration change.

Changes Made

• Moved .github/pull_request_template.md → .github/PULL_REQUEST_TEMPLATE/mcp-server-default.md
• Deleted remote branch pr/pr-template-wiki-updates (already merged)

Current Template Structure

.github/PULL_REQUEST_TEMPLATE/
├── mcp-server-default.md   # Default template for MCP server changes
└── wiki-update.md          # Template for Wiki documentation updates

Checklist

• Labels applied correctly
• Documentation updated (if applicable)

Notes

With multiple templates in the PULL_REQUEST_TEMPLATE/ directory, contributors can select the appropriate template when creating a PR by appending ?template=<filename> to the PR URL, e.g.:

• ?template=mcp-server-default.md
• ?template=wiki-update.md