Extract BIOME_CONFIGS and PRETTIER_CONFIGS as shared constants to eliminate
duplication between PROJECT_ROOT_MARKERS and detectFormatter(). Unify the
biome/prettier branches in resolveFormatterBin() via a FORMATTER_PACKAGES
map. Remove redundant path.resolve() in quality-gate.js.
Handle Windows .cmd shim resolution via spawnSync with strict path
validation. Removes shell:true injection risk, uses strict equality,
and restores .cmd support with path injection guard.
Invoke hook scripts directly via require() when they export a
run(rawInput) function, eliminating one Node.js process spawn per
hook invocation (~50-100ms).
Includes path traversal guard, timeouts, error logging, PR review
feedback, legacy hooks guard, normalized filePath, and restored
findProjectRoot config detection with package manager support.
Extract project-root discovery, formatter detection, and binary
resolution into a reusable module. Caches results per-process to
avoid redundant filesystem lookups on every Edit hook invocation.
This is the foundation for eliminating npx overhead in format hooks.
