edit-form.tsx missing isViewAs dep (view-as correctness) + weekly-kpi.ts unused eslint-disable

eslint flags src/app/(protected)/mi-cursada/[id]/editar/edit-form.tsx:425 with a missing isViewAs dependency in a hook — flagged as a correctness smell, not style, since isViewAs gates view-as behavior. Also unused eslint-disable for no-var in src/lib/weekly-kpi.ts:36 (pure lint cleanup, bundle together). Surfaced by coder-mars-cc during MARS-593/wi-cancel push, 2026-07-31, pre-existing, not introduced by that push.