Initial commit: twitter-cli for posting tweets via GraphQL API

Features:
- Post tweets and replies via Twitter GraphQL API
- Cookie extraction from Chrome (macOS)
- Env var and CLI argument authentication
- 19 passing tests with vitest
- Biome for linting

biome.json

@@ -0,0 +1,32 @@
+{
+	"$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+	"organizeImports": {
+		"enabled": true
+	},
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true,
+			"complexity": {
+				"noForEach": "off"
+			},
+			"style": {
+				"noNonNullAssertion": "off"
+			}
+		}
+	},
+	"formatter": {
+		"enabled": true,
+		"indentStyle": "tab",
+		"lineWidth": 120
+	},
+	"javascript": {
+		"formatter": {
+			"quoteStyle": "single",
+			"semicolons": "always"
+		}
+	},
+	"files": {
+		"ignore": ["dist/", "node_modules/", "*.d.ts"]
+	}
+}