✨ Försterkreislauf: Setzlinge beim Fällen, Försterhaus, Förster-Job

- Gefällter Baum → 1–2 tree_seed im Stockpile (zufällig)
- Neues Gebäude forester_hut (50 wood): Log-Hütten-Grafik, Klick öffnet Info-Panel
- Zonenmarkierung: Edit-Zone-Tool, Radius 5 Tiles, halbtransparente Overlay-Anzeige
- Neuer JobType 'forester': Nisse pflanzen Setzlinge auf markierten Zonen-Tiles
- Chop-Priorisierung: Zonen-Bäume werden vor natürlichen Bäumen gefällt
- Nisse-Panel & Info-Panel zeigen forester-Priorität-Button

Closes #25

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

src/types.ts

@@ -32,18 +32,19 @@ export const PLANTABLE_TILES = new Set<TileType>([TileType.GRASS, TileType.DARK_
 
 export type ItemId = 'wood' | 'stone' | 'wheat_seed' | 'carrot_seed' | 'wheat' | 'carrot' | 'tree_seed'
 
-export type BuildingType = 'floor' | 'wall' | 'chest' | 'bed' | 'stockpile_zone'
+export type BuildingType = 'floor' | 'wall' | 'chest' | 'bed' | 'stockpile_zone' | 'forester_hut'
 
 export type CropKind = 'wheat' | 'carrot'
 
-export type JobType = 'chop' | 'mine' | 'farm'
+export type JobType = 'chop' | 'mine' | 'farm' | 'forester'
 
 export type AIState = 'idle' | 'walking' | 'working' | 'sleeping'
 
 export interface JobPriorities {
-  chop: number   // 0 = disabled, 1 = highest, 4 = lowest
+  chop: number      // 0 = disabled, 1 = highest, 4 = lowest
   mine: number
   farm: number
+  forester: number  // plant tree seedlings in forester zones
 }
 
 export interface VillagerJob {
@@ -112,6 +113,16 @@ export interface TreeSeedlingState {
   underlyingTile: TileType
 }
 
+/**
+ * The set of tiles assigned to one forester hut's planting zone.
+ * Tiles are stored as "tileX,tileY" key strings.
+ */
+export interface ForesterZoneState {
+  buildingId: string
+  /** Tile keys "tileX,tileY" that the player has marked for planting. */
+  tiles: string[]
+}
+
 export interface WorldState {
   seed: number
   tiles: number[]
@@ -127,6 +138,8 @@ export interface WorldState {
    * Value is remaining milliseconds until the tile reverts to GRASS.
    */
   tileRecovery: Record<string, number>
+  /** Forester zone definitions, keyed by forester_hut building ID. */
+  foresterZones: Record<string, ForesterZoneState>
 }
 
 export interface GameStateData {
@@ -156,3 +169,4 @@ export type GameAction =
   | { type: 'REMOVE_TREE_SEEDLING';    seedlingId: string }
   | { type: 'SPAWN_RESOURCE';          resource: ResourceNodeState }
   | { type: 'TILE_RECOVERY_START';     tileX: number; tileY: number }
+  | { type: 'FORESTER_ZONE_UPDATE';    buildingId: string; tiles: string[] }