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/types/game.ts

@@ -302,6 +302,37 @@ export interface AdvanceLegInput {
   transferEncounterIds: number[]
 }
 
+// Lineage types
+
+export interface LineageLegEntry {
+  legOrder: number
+  gameName: string
+  encounterId: number
+  pokemon: Pokemon
+  currentPokemon: Pokemon | null
+  nickname: string | null
+  catchLevel: number | null
+  faintLevel: number | null
+  deathCause: string | null
+  isShiny: boolean
+  routeName: string
+  isAlive: boolean
+  enteredHof: boolean
+  wasTransferred: boolean
+}
+
+export interface LineageEntry {
+  nickname: string | null
+  pokemon: Pokemon
+  legs: LineageLegEntry[]
+  status: 'alive' | 'dead'
+}
+
+export interface GenlockeLineage {
+  lineages: LineageEntry[]
+  totalLineages: number
+}
+
 // Graveyard types
 
 export interface GraveyardEntry {