//! pushkin-daemon: the warm-path validation server (spec §4.3, §8.1, §8.4).
//! Serves the same uniform result JSON as the cold in-process path over a
//! Unix domain socket under `.pushkin/`; holds parsers and per-file state
//! warm; probes schema epochs eagerly at startup. The daemon is an
//! optimization, never a gate-weakening layer: shims that cannot reach it
//! fall back to the cold path, and warm results must be byte-identical to
//! cold ones (Phase 4 conformance-parity tests).