Add genlocke lineage tracking with aligned timeline view

Implement read-only lineage view that traces Pokemon across genlocke legs
via existing transfer records. Backend walks transfer chains to build
lineage entries; frontend renders them as cards with a column-aligned
timeline grid so leg dots line up vertically across all lineages.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/hooks/useGenlockes.ts

@@ -1,5 +1,5 @@
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query'
-import { advanceLeg, createGenlocke, getGamesByRegion, getGenlockes, getGenlocke, getGenlockeGraveyard, getLegSurvivors } from '../api/genlockes'
+import { advanceLeg, createGenlocke, getGamesByRegion, getGenlockes, getGenlocke, getGenlockeGraveyard, getGenlockeLineages, getLegSurvivors } from '../api/genlockes'
 import type { AdvanceLegInput, CreateGenlockeInput } from '../types/game'
 
 export function useGenlockes() {
@@ -23,6 +23,13 @@ export function useGenlockeGraveyard(id: number) {
   })
 }
 
+export function useGenlockeLineages(id: number) {
+  return useQuery({
+    queryKey: ['genlockes', id, 'lineages'],
+    queryFn: () => getGenlockeLineages(id),
+  })
+}
+
 export function useRegions() {
   return useQuery({
     queryKey: ['games', 'by-region'],