refactor: remove all food POI references, clean up dead code

Remove pointsOfInterest from WorldState type, state serializer,
and client rendering. Remove foodPositions from map generator
interface and output. Update stale comment in worldSerializer.

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

client/src/scenes/GameScene.ts

@@ -408,7 +408,7 @@ export class GameScene extends Phaser.Scene {
   }
 
   private drawWorld(): void {
-    const { worldWidth, worldHeight, terrain, decorations, trunkDecorations, pointsOfInterest } = this.worldState;
+    const { worldWidth, worldHeight, terrain, decorations, trunkDecorations } = this.worldState;
 
     // --- LPC watergrass autotile layout (3 cols x 6 rows, 32x32 tiles) ---
     // The 3×3 grid (rows 2-4) shows a WATER pond on GRASS background:
@@ -592,18 +592,6 @@ export class GameScene extends Phaser.Scene {
     const aboveCharDepth = worldHeight * TILE_SIZE + 1;
     createLayer(decoData, 'trees', 'lpc_treesnstone', aboveCharDepth);
 
-    // Points of interest markers
-    const graphics = this.add.graphics();
-    graphics.setDepth(-6);
-    for (const poi of pointsOfInterest) {
-      graphics.fillStyle(0xcc8833, 0.7);
-      graphics.fillRect(
-        poi.position.x * TILE_SIZE + 8,
-        poi.position.y * TILE_SIZE + 8,
-        TILE_SIZE - 16,
-        TILE_SIZE - 16,
-      );
-    }
   }
 
   private async spawnEntities(entities: EntityState[]): Promise<void> {

server/src/map/__tests__/mapGenerator.test.ts

@@ -81,11 +81,6 @@ describe('generateMap — resource generation', () => {
     expect(berryTiles.length).toBeGreaterThan(0);
   });
 
-  it('does not generate food positions', () => {
-    const map = generateMap(32, 32, 42);
-    expect(map.foodPositions).toHaveLength(0);
-  });
-
   it('deterministic with same seed', () => {
     const a = generateMap(32, 32, 123);
     const b = generateMap(32, 32, 123);

server/src/map/mapGenerator.ts

@@ -6,7 +6,6 @@ export interface GeneratedMap {
   decorations: number[];
   trunkDecorations: number[];
   obstacles: Set<string>;
-  foodPositions: { x: number; y: number }[];
   resourceTiles: Array<{ x: number; y: number; resourceType: string }>;
 }
 
@@ -156,7 +155,6 @@ export function generateMap(
   const obstacles = new Set<string>();
   const resourceTiles: Array<{ x: number; y: number; resourceType: string }> = [];
 
-  const foodPositions: { x: number; y: number }[] = [];
   // Reserve positions that must stay clear
   const reserved = new Set<string>();
 
@@ -314,5 +312,5 @@ export function generateMap(
     }
   }
 
-  return { terrain, decorations, trunkDecorations, obstacles, foodPositions, resourceTiles };
+  return { terrain, decorations, trunkDecorations, obstacles, resourceTiles };
 }

server/src/network/stateSerializer.ts

@@ -89,7 +89,6 @@ export function serializeWorldState(world: World, map: GameMap): WorldState {
     worldHeight: map.height,
     tileSize: TILE_SIZE,
     obstacles: map.getObstacles(),
-    pointsOfInterest: [],
     terrain: map.terrain,
     decorations: map.decorations,
     trunkDecorations: map.trunkDecorations,

server/src/persistence/worldSerializer.ts

@@ -40,7 +40,7 @@ export function saveTiles(width: number, height: number, data: TileData): void {
       }
     }
 
-    // Save obstacles and foodPositions as metadata
+    // Save obstacles and berry bushes as metadata
     const upsertMeta = db.prepare(
       "INSERT INTO metadata (key, value) VALUES (?, ?) ON CONFLICT(key) DO UPDATE SET value = excluded.value"
     );

shared/src/types.ts

@@ -169,7 +169,6 @@ export interface WorldState {
   worldHeight: number;
   tileSize: number;
   obstacles: Position[];
-  pointsOfInterest: { type: 'food'; position: Position }[];
   terrain: number[];            // flat array [y * width + x], terrain type per tile
   decorations: number[];        // flat array [y * width + x], decoration tile index (-1 = none)
   trunkDecorations: number[];   // flat array [y * width + x], trunk tile index (-1 = none)