chore: add .gitignore for Python, Frappe, and editor artifacts

Keeps __pycache__/ and ns_app.egg-info/ out of the working tree status,
plus the usual bench, node, OS, and local-secret noise.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,93 @@
+# --- Python ---
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+
+# --- Packaging / build ---
+build/
+dist/
+sdist/
+wheels/
+develop-eggs/
+eggs/
+.eggs/
+*.egg-info/
+*.egg
+MANIFEST
+pip-wheel-metadata/
+
+# --- Virtualenvs ---
+env/
+venv/
+.venv/
+ENV/
+.python-version
+
+# --- Testing / coverage ---
+.pytest_cache/
+.tox/
+.nox/
+.coverage
+.coverage.*
+htmlcov/
+coverage.xml
+*.cover
+.hypothesis/
+.mypy_cache/
+.ruff_cache/
+.dmypy.json
+
+# --- Frappe / bench ---
+*.log
+logs/
+sites/
+node_modules/
+__snapshots__/
+.frappe
+locks/
+*.sqlite3
+*.sql
+*.sql.gz
+private/
+public/files/
+public/dist/
+public/build.json
+*.bak
+
+# --- Node / assets ---
+npm-debug.log*
+yarn-error.log*
+yarn.lock
+package-lock.json
+.pnpm-debug.log*
+.parcel-cache/
+.esbuild/
+
+# --- Editors / IDEs ---
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+*.sublime-project
+*.sublime-workspace
+
+# --- OS ---
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+Thumbs.db
+ehthumbs.db
+desktop.ini
+
+# --- Secrets / local config ---
+.env
+.env.*
+!.env.example
+*.pem
+*.key
+.claude/settings.local.json