A typed apiFetch wrapper owns the envelope unwrap, the ok-check and the
error read for every client call — two hundred call sites across the
app migrate onto it and a lint rule keeps raw api fetches out for good.
The legacy timezone helpers fold into the tz module and test fixtures
drop personal names.
Maintainer-voice sweep across `src/`. ~190 references to the
maintainer by first name in code comments and JSDoc neutralised to
"the maintainer", "the live tenant", "users", or "the user" depending
on context. Three sed passes covering ~50 distinct patterns
(`Marc reported`, `Marc wants`, `Marc kept`, `Marc rolled back`, etc.).
Test fixtures (`displayName: "Marc B."`, `username: "marc"`,
`<HeroStrip userName="Marc">`) kept as opaque test data per the brief.
CHANGELOG normalisation. The v1.4.14 + v1.4.15 entries paired a
German bullet with its English translation by historical design — the
in-app copy is English-default and the user docs are English, so the
mixed-language style was a holdover from the early-marathon notes.
A one-off node script extracted the `_..._` English paragraph from
each bilingual bullet and rewrote the entry as that text. ~44 bullets
reduced; one Docs bullet that lost a leading word in the regex
fixed by hand.
CLAUDE.md → CONTRIBUTING-AI.md rename so the filename is no longer
AI-vendor-specific. `CONTRIBUTING.md` reference updated. `AGENTS.md`
stays in place for multi-agent compatibility (the conventions doc is
shared with Codex / Cursor / etc.).
Wave-4 state wrap. STATE.md now records C1–C5 + D + D2 as complete;
v1421-backlog.md grew a "Closed in v1.4.22" header listing the 20
items the marathon landed; `.planning/phase-W4-report.md` documents
the per-commit decisions, test deltas, and the 23 items deferred to
v1.4.23 with reasoning.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Marc reported clicking "All" on a chart's range buttons displayed
"+0.0 kg/Woche" even when his weight clearly drifted across years.
Root cause: `weeklyDelta = (lastTrend - firstTrend) / windowDays *
7` is mathematically correct but the per-week rate becomes
vanishingly small for multi-year windows (~0.07 kg/week for
10 kg over 3 years), and the 1-decimal `fmt.number(delta, 1)`
formatter rounds it to "0.0".
Fix: extract a pure `computeWindowTrend()` helper at
`src/lib/analytics/window-trend.ts`. For windows ≥ 90 days we
additionally surface a split-half delta — the mean of the
second half of the visible series minus the mean of the first
half. That number cannot round to zero unless the metric truly
didn't move, and it's exactly what Marc wants to see when he
asks "what changed across all my data?". For short windows the
per-week rate stays the only display because it's still the most
actionable metric there.
The chart trend line surfaces both: "WEIGHT: +0.1 kg/week
(0.1 %/week) · Total +5.4 kg (6.7 %)" on the All view of a
multi-year account.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Marc-André Bombeck