When debug is true: enable Twig debug mode (dump(), auto_reload,
DebugExtension), and stop caching sidecar-less pages — Renderer skips
the cache write, the dev router skips serving cache files, and
bootstrap clears stale cache on the first request that reaches PHP.
Also update docs: new Debug mode section on the config page, cache-
opt-out notes (debug + empty index.php sidecar) on the caching page,
and correct the Sass build target to App/css/main.css in AGENTS.md
and the styling page.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011FZQHKxu24mvojrJDwhWVS
codeandClaude Sonnet 5
6ae05da6de