Exclude local credentials, private data, and generated artifacts

Import the existing local project snapshot. This commit organizes existing files; it does not represent newly developed functionality.

.gitignore

@@ -0,0 +1,36 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+# Local secrets and private runtime state
+.env
+.env.*
+!.env.example
+*.pem
+*.key
+*.pfx
+*.session*
+*.db*
+*.sqlite*
+*.tsbuildinfo