Feature/tilemap editor (#237)

* feat: 添加 Tilemap 编辑器插件和组件生命周期支持

* feat(editor-core): 添加声明式插件注册 API

* feat(editor-core): 改进tiledmap结构合并tileset进tiledmapeditor

* feat: 添加 editor-runtime SDK 和插件系统改进

* fix(ci): 修复SceneResourceManager里变量未使用问题

packages/tilemap-editor/src/tools/ITilemapTool.ts

@@ -0,0 +1,31 @@
+/**
+ * Tilemap Tool Interface
+ */
+
+import type { TilemapComponent } from '@esengine/tilemap';
+import type { TileSelection } from '../stores/TilemapEditorStore';
+
+export interface ToolContext {
+    tilemap: TilemapComponent;
+    selectedTiles: TileSelection | null;
+    currentLayer: number;
+    layerLocked: boolean;
+    brushSize: number;
+    editingCollision: boolean;
+    tileWidth: number;
+    tileHeight: number;
+}
+
+export interface ITilemapTool {
+    readonly id: string;
+    readonly name: string;
+    readonly icon: string;
+    readonly cursor: string;
+
+    onMouseDown(tileX: number, tileY: number, ctx: ToolContext): void;
+    onMouseMove(tileX: number, tileY: number, ctx: ToolContext): void;
+    onMouseUp(tileX: number, tileY: number, ctx: ToolContext): void;
+
+    // Preview tiles to highlight during drag
+    getPreviewTiles?(tileX: number, tileY: number, ctx: ToolContext): { x: number; y: number }[];
+}