docs: Add LICENSE, CONTRIBUTING.md, CHANGELOG.md, and .gitignore

- Add MIT License for open source clarity
- Add .gitignore to prevent unwanted files in commits
- Add CONTRIBUTING.md guidelines for contributors
- Add CHANGELOG.md template for version tracking

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.gitignore

@@ -0,0 +1,36 @@
+# OS
+.DS_Store
+Thumbs.db
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Backups
+*.bak
+*.backup
+
+# Logs
+*.log
+logs/
+
+# Dependencies
+node_modules/
+__pycache__/
+venv/
+env/
+
+# Build outputs
+build/
+dist/
+*.o
+*.a
+*.so
+
+# Temporary files
+.tmp/
+temp/
+*.tmp