ToolAhead 0.4.0

Route warming: warm_routes = ["/", "auto"] on a service pre-requests the listed routes after every edit, once the service is ready — on-demand compiling dev servers (Next.js and friends) finish their rebuild inside the model's reasoning window instead of on the agent's first request. "auto" derives the route from the edited file for Next.js (app and pages router), Nuxt, and SvelteKit.

Safety: GET-only against the declared service origin, no off-origin redirects, responses never cached, newer edits supersede in-flight warm rounds, and manual services are never booted just for warming. Requires an approved toolahead.toml (toolahead trust).