fix(client): resolve three TypeScript type errors

Add missing Vite client type declarations, fix canvas-to-HTMLImageElement
cast in CharacterCompositor, and use proper Stats/StatName types in
NpcInfoPanel instead of loose Record<string, number>.

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

client/src/sprites/CharacterCompositor.ts

@@ -87,7 +87,7 @@ export class CharacterCompositor {
     }
 
     // Add composited texture to Phaser
-    this.scene.textures.addSpriteSheet(key, canvas, {
+    this.scene.textures.addSpriteSheet(key, canvas as unknown as HTMLImageElement, {
       frameWidth: SPRITE_FRAME_WIDTH,
       frameHeight: SPRITE_FRAME_HEIGHT,
     });

client/src/ui/NpcInfoPanel.ts

@@ -1,4 +1,4 @@
-import type { EntityState, NarrationEvent, MemoryEvent } from '@dflike/shared';
+import type { EntityState, NarrationEvent, MemoryEvent, Stats, StatName } from '@dflike/shared';
 
 const ACTIVITY_LABELS: Record<string, string> = {
   wander: 'Wandering',
@@ -630,10 +630,10 @@ export class NpcInfoPanel {
     }
   }
 
-  private updateStats(stats: Record<string, number>): void {
+  private updateStats(stats: Stats): void {
     const physicalKeys = ['STR', 'DEX', 'CON', 'INT', 'PER'];
     const personalityKeys = ['SOC', 'COU', 'CUR', 'EMP', 'TMP'];
-    const mapping: Record<string, string> = {
+    const mapping: Record<string, StatName> = {
       STR: 'strength', DEX: 'dexterity', CON: 'constitution', INT: 'intelligence', PER: 'perception',
       SOC: 'sociability', COU: 'courage', CUR: 'curiosity', EMP: 'empathy', TMP: 'temperament',
     };

client/src/vite-env.d.ts

@@ -0,0 +1 @@
+/// <reference types="vite/client" />