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.
