feat(timeline): add eventCardConfig accent matrix + DTO test factories

getAccentConfig(entry) maps each EVENT to its glyph (* / † / ⚭ / ★ / ◍), German
redundant-cue label, and accent kind (REQ-007/008/018). test-factories build
TimelineEntryDTO/TimelineDTO mirroring the real wire shape for component specs.

Refs #779
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/lib/timeline/eventCardConfig.spec.ts

@@ -0,0 +1,53 @@
+import { describe, it, expect } from 'vitest';
+import { getAccentConfig } from './eventCardConfig';
+import type { components } from '$lib/generated/api';
+
+type TimelineEntryDTO = components['schemas']['TimelineEntryDTO'];
+
+function event(overrides: Partial<TimelineEntryDTO>): TimelineEntryDTO {
+	return {
+		kind: 'EVENT',
+		precision: 'YEAR',
+		derived: false,
+		senderName: '',
+		receiverName: '',
+		...overrides
+	};
+}
+
+describe('getAccentConfig', () => {
+	it('maps a derived birth to the * glyph and "Geburt"', () => {
+		const cfg = getAccentConfig(event({ derived: true, derivedType: 'BIRTH' }));
+		expect(cfg.glyph).toBe('*');
+		expect(cfg.label).toBe('Geburt');
+		expect(cfg.accent).toBe('derived');
+	});
+
+	it('maps a derived death to the † glyph and "Tod"', () => {
+		const cfg = getAccentConfig(event({ derived: true, derivedType: 'DEATH' }));
+		expect(cfg.glyph).toBe('†');
+		expect(cfg.label).toBe('Tod');
+		expect(cfg.accent).toBe('derived');
+	});
+
+	it('maps a derived marriage to the ⚭ glyph and "Heirat"', () => {
+		const cfg = getAccentConfig(event({ derived: true, derivedType: 'MARRIAGE' }));
+		expect(cfg.glyph).toBe('⚭');
+		expect(cfg.label).toBe('Heirat');
+		expect(cfg.accent).toBe('derived');
+	});
+
+	it('maps a HISTORICAL event to the world glyph and "Weltgeschehen"', () => {
+		const cfg = getAccentConfig(event({ type: 'HISTORICAL' }));
+		expect(cfg.glyph).toBe('◍');
+		expect(cfg.label).toBe('Weltgeschehen');
+		expect(cfg.accent).toBe('historical');
+	});
+
+	it('maps a curated PERSONAL event to the ★ glyph and "Familie"', () => {
+		const cfg = getAccentConfig(event({ type: 'PERSONAL', eventId: 'e-1' }));
+		expect(cfg.glyph).toBe('★');
+		expect(cfg.label).toBe('Familie');
+		expect(cfg.accent).toBe('curated');
+	});
+});