v0.14.7

Added

• :hmr_timeout option on Volt.DevServer (and the :server config profile) controls the HMR websocket idle timeout. Defaults to 60_000ms.
• CSS @import and url() relationships are now tracked through Vize's parser-backed CSS selectors so HMR can invalidate and hot-swap stylesheets, CSS modules, and framework-emitted styles when an imported stylesheet or referenced asset changes.
• CSS dependency tracking now resolves extensionless local imports to .css files and directory imports to index.css files.
• Svelte-emitted styles participate in CSS asset dependency tracking for HMR.

Changed

• CSS dependency graph updates for physical CSS, CSS modules, and framework-emitted styles now flow through one HMR path.
• HMR websocket messages (ping, pong, update, error) now flow through Volt.HMR.Message, which uses JSONCodec for struct<->JSON (de)serialization with Jason performing the final binary encoding.
• Added json_codec as a runtime dependency.

Fixed

• Cyclic CSS import graphs no longer report the changed stylesheet as its own HMR dependent.
• CSS module and framework-emitted style dependency links are removed when styles stop referencing an asset.
• HMR websocket no longer drops idle connections after 60 seconds. The browser client now sends a periodic {"type":"ping"} heartbeat, and the server replies with {"type":"pong"}, preventing Bandit's websocket read_timeout from closing an otherwise idle socket. The client also tracks pongs and force-reconnects if the link goes half-open. This eliminates the spurious [Volt] Disconnected. Reconnecting... console noise observed on long-lived demo/dev pages with no file changes.