feat: add Cesium semantic inspection mode

scripts/test-compress-glb.js

@@ -0,0 +1,32 @@
+#!/usr/bin/env node
+"use strict";
+
+const assert = require("assert");
+const fs = require("fs");
+const os = require("os");
+const path = require("path");
+const { writeCompressedMetadata } = require("./compress-glb");
+
+const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "compress-glb-"));
+const source = path.join(tempDir, "scene.json");
+const output = path.join(tempDir, "scene-compressed.json");
+const compressedGlb = path.join(tempDir, "scene-compressed.glb");
+
+fs.writeFileSync(source, `${JSON.stringify({
+  asset: "scene.glb",
+  assets: [
+    { id: "main", label: "Scene", type: "model", url: "scene.glb", enabled: true },
+    { id: "roads", label: "道路", type: "model", url: "scene-roads.glb", enabled: false, category: "semantic" },
+  ],
+}, null, 2)}\n`);
+
+writeCompressedMetadata(source, compressedGlb, output);
+const metadata = JSON.parse(fs.readFileSync(output, "utf8"));
+assert.equal(metadata.asset, "scene-compressed.glb");
+assert.deepEqual(metadata.assets.map((asset) => asset.id), ["main", "roads"]);
+assert.equal(metadata.assets[0].url, "scene-compressed.glb");
+assert.equal(metadata.assets[1].url, "scene-roads.glb");
+assert.equal(metadata.assets[1].category, "semantic");
+
+fs.rmSync(tempDir, { recursive: true, force: true });
+console.log("GLB compression metadata tests passed.");