The Personal Health Score weighted the 0.20 mood-stability pillar
unconditionally — the fast-path read mood entries regardless of the
account's module state, so a user who turned the mood module off was
still scored (and silently penalised or rewarded) by a pillar hidden
everywhere else in the product. The dashboard already blanks the mood
tile and the coach snapshot unions mood out; the score ring and the
insights card pillar list did not.
Thread a default-on `moodEnabled` flag through the fast-path. When the
caller resolves the mood module as disabled the helper skips the mood
read entirely and leaves the series empty, so `moodStability` returns
null and the existing proportional null-redistribution re-scales the
surviving pillars to sum to 100. The analytics route resolves the
module server-side and threads the flag; the insights card hides the
Mood row via a new SSR-safe `useModuleEnabled` accessor so it never
advertises a pillar the account turned off.
Golden fixtures pin mood-on vs mood-off to different, correctly
re-weighted scores and assert the disabled read is never issued.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
