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HealthLog/src
Marc-André BombeckandClaude Opus 4.7 a8562727a7 fix(dashboard): BD-Zielbereich headline shows all-time, not 30-day
Marc reported the BD-Zielbereich tile pinned at exactly 50/50/50 for
7T, 30T, and the headline ("total") on his real production data — the
fourth attempt at this surface (v1.4.15 → v1.4.16 → v1.4.18 → v1.4.19).

Root cause: the analytics route routed `bpInTargetPct` (the headline)
through `windows.last30Days?.pct` — a literal copy of the `30T`
sub-value. Since `computeBpInTargetWindows` only returned 7d + 30d
windows, the headline could never legitimately differ from `30T`. For
Marc's real data (572 paired readings since 2022, recent 30d = 50 %,
all-time ≈ 11 %) the tile read 50 % / 50 % / 50 % and looked
algorithmically pinned — exactly the symptom he reported.

The previous three passes treated this as either a predicate bug
(v1.4.16 ceiling-vs-narrow-band, real and merged) or a missing
`avg7`/`avg30` wiring (v1.4.18, also real and merged). Both fixes
landed correctly, but neither addressed the headline duplication.

Fix:
  - `computeBpInTargetWindows` now returns a third `allTime` window
    that aggregates EVERY paired reading in the input series.
  - The analytics route fetches all paired BP rows (no 30-day cutoff)
    and routes the headline through `windows.allTime?.pct`. The route
    only re-pairs once internally so the cost is paid once per request.
  - The 7T / 30T sub-values are unchanged (still windowed slices of
    the same input).

Failing test reproduces the bug with Marc's data shape (`allTime` MUST
not equal `last30Days` once older history is present); fix turns it
green. Integration test seeds 40 paired readings against real Postgres
and asserts all three windows compute independently.

Hand-counted against Marc's prod data:
  - 7T:        50 % (1/2) — matches what he sees, real coincidence
  - 30T:       50 % (5/10) — matches what he sees, real coincidence
  - Headline:  ~11 % (62/572) — was 50 %, now correct

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-10 13:01:08 +02:00
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