chore: ajustes de configuração diversos

- tsconfig: target ES2017 → ES2022, remove ignoreDeprecations 6.0
- gitignore: ignora pasta .codex
- next.config: remove linha em branco supérflua

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tsconfig.json

@@ -1,8 +1,7 @@
 {
 	"compilerOptions": {
-		"ignoreDeprecations": "6.0",
 		"baseUrl": ".",
-		"target": "ES2017",
+		"target": "ES2022",
 		"lib": ["dom", "dom.iterable", "esnext"],
 		"allowJs": true,
 		"skipLibCheck": true,