- 'holes' / 'hoyos' added to MOBILE_UNITS alongside CFS/GPM/gal/ac-in/ac-ft
with integer-only validation: submit button greys out and the keyboard
raises the numeric keypad (no decimal) when the unit is selected.
- Language toggle in the headgate list header (next to logout) flips
every screen between English and Spanish. Choice is persisted to the
existing 'wl_lang' cookie for 1y, so the user's last selection
sticks across logout/relogin.
- i18n strings lifted into shared src/lib/water-log/i18n.ts (single
source of truth, en/es parity enforced by tests). All mobile screens
(Pin, HeadgateList, LogForm, Success) plus the loadHeadgates error
in the orchestrator consume the dictionary. Brand strip, aria-labels,
segmented control labels, success recap, and submit-button labels
all go through getT()/formatUnit()/displayUnit().
- 26 new unit tests (tests/unit/water-log-i18n.test.ts) cover: en/es
dict parity, holes catalog + hoyos translation, all the
detectInitialLang() branches (SSR/cookie/navigator), setLangCookie
read/write, label interpolation helpers, and the unit catalog.
Refs /tmp/refactor-water-log.md (Commit B plan)