Gate B #26: shared validation module (V-1, V-2, V-3)
- V-1: SKU charset [A-Z0-9-]{3,24}, accepted/rejected with specific error codes
- V-2: title/short_title/description UTF-8 within WooCommerce maxLength,
enforced at field-exit and submit (200/200/2500 chars, Unicode code-point counting)
- V-3: validation module version hash, client caches, submit carries hash,
mismatch returns 412 with fresh module (not 409)
25 unit tests green, zero browser/DOM/network dependencies.
Re-exports through pipeline/index.ts for shared use.
grokbot_ty
d5d8c49e04