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fix(timeline): keep HISTORICAL events out of inline clustering

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buildEventLookup keyed on `kind === 'EVENT' && eventId` with no type
check, so a HISTORICAL curated event with ≥1 linked letter entered the
lookup and rendered as a mint EventCluster card — silently downgrading
from the full-width WorldBand that #779 REQ-009 mandates ("world-bands
render exactly as before").

The lookup now excludes `type === 'HISTORICAL'`, so a world event always
keeps its WorldBand and its letters stay loose chronological. Closes the
spec gap pinned as REQ-014. Fixes review finding #2.

Refs #850
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Marcel
2026-06-15 22:06:01 +02:00
parent b5319876eb
commit 0fc7ef5d3b
4 changed files with 53 additions and 4 deletions
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@@ -207,5 +207,5 @@
| REQ-011 | wrapping header keeps #842 add-event CTA + #780 filter trigger; meta-line drops the grouping segment | #850 | inline-event-clustering | `frontend/src/routes/zeitstrahl/+page.svelte` | `page.svelte.spec.ts#renders the meta sub-line with range and counts, no grouping segment`, `#drops the letters segment instead of showing "0 Briefe"` (no "Gruppierung") | Done |
| REQ-012 | show-more/less labels are new Paraglide keys in de/en/es; unused #827 grouping/Thema keys removed | #850 | inline-event-clustering | `frontend/messages/{de,en,es}.json`, `frontend/src/lib/timeline/EventCluster.svelte` | `messages.spec.ts#zeitstrahl visual-fidelity keys are present in all locales` (now asserts `timeline_bucket_show_more`/`_less`; `timeline_grouping_date` removed) | Done |
| REQ-013 | `GET /api/timeline` failure → existing localized error state via `getErrorMessage(code)` (unchanged #779) | #850 | inline-event-clustering | `frontend/src/routes/zeitstrahl/+page.svelte` (unchanged error path) | covered by #779 `zeitstrahl` error-state tests (regression — no change) | Done |
| REQ-014 | HISTORICAL curated event with ≥1 linked letter keeps its full-width WorldBand — never clusters into a card (preserves #779 REQ-009); its letters stay loose | #850 | inline-event-clustering | `frontend/src/lib/timeline/eventClustering.ts` (`buildEventLookup` excludes HISTORICAL) | `eventClustering.spec.ts#excludes a HISTORICAL event from the lookup`; `YearBand.svelte.spec.ts#renders a HISTORICAL event with a same-year linked letter as a WorldBand, letter loose` | Planned |
| REQ-014 | HISTORICAL curated event with ≥1 linked letter keeps its full-width WorldBand — never clusters into a card (preserves #779 REQ-009); its letters stay loose | #850 | inline-event-clustering | `frontend/src/lib/timeline/eventClustering.ts` (`buildEventLookup` excludes HISTORICAL) | `eventClustering.spec.ts#excludes a HISTORICAL event so its letters stay loose, keeping its WorldBand (REQ-014)`; `TimelineView.svelte.spec.ts#keeps a HISTORICAL event a WorldBand with a same-year linked letter — never clusters (REQ-014)` | Done |
| REQ-015 | a cross-year ✉ card is placed at its earliest linked letter's chronological position in the band — never appended after later-dated loose letters | #850 | inline-event-clustering | `frontend/src/lib/timeline/YearBand.svelte` | `YearBand.svelte.spec.ts#interleaves a cross-year card before a later-dated loose letter in the same band` | Planned |