feat(procgen): 添加程序化生成工具包 (#331)

- 添加噪声函数 (Perlin, Simplex, Worley, FBM)
- 添加种子随机数生成器 (SeededRandom)
- 添加加权随机选择和洗牌工具
- 添加蓝图节点 (SampleNoise2D, SeededRandom, WeightedPick 等)

packages/procgen/tsup.config.ts

@@ -0,0 +1,12 @@
+import { defineConfig } from 'tsup';
+
+export default defineConfig({
+    entry: ['src/index.ts'],
+    format: ['esm'],
+    dts: true,
+    splitting: false,
+    sourcemap: true,
+    clean: true,
+    treeshake: true,
+    tsconfig: 'tsconfig.build.json'
+});