docs: clean up public repo — remove IDE files, fix stale refs
- Untrack .claude/commands/ and .windsurf/workflows/ (personal IDE config)
- Fix .gitignore: scope /CLAUDE.md to root only, add .claude/, remove
incorrect .github/workflows/ exclusion (CI needs these tracked)
- Rename docs/ANTIGRAVITY.md → docs/CLAUDE.md (Claude Desktop setup;
"Antigravity" was an internal codename, confusing to public users)
- Fix stale repo name: masdevid/mt5-mcp → masdevid/mt5-quant in
README.md, docs/CLAUDE.md, CURSOR.md, QUICKSTART.md, VSCODE.md, WINDSURF.md
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Devid HW
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