feat(bake-sprite): end-to-end sprite-mode orchestrator + CLI dispatch

tests/bake-sprite-fresh.test.js

@@ -0,0 +1,33 @@
+const { test } = require('node:test');
+const assert = require('node:assert');
+const fs = require('node:fs');
+const path = require('node:path');
+const os = require('node:os');
+const { bake } = require('../src/bake');
+
+const FRESH = path.resolve(__dirname, 'fixtures/sprite-fresh');
+
+test('bake sprite: fresh bake of 4 fixture sprites', async (t) => {
+    const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'bake-sprite-fresh-'));
+    t.after(() => fs.rmSync(tmp, { recursive: true, force: true }));
+
+    const result = await bake({
+        mode: 'sprite',
+        inDir: FRESH,
+        outDir: tmp,
+        atlasId: 'test',
+        padPx: 0,
+    });
+    assert.strictEqual(result.atlasId, 'test');
+    assert.strictEqual(result.spriteCount, 4);
+
+    // Outputs exist
+    assert.ok(fs.existsSync(path.join(tmp, 'test/sprites.diffuse.atlas.png')));
+    assert.ok(fs.existsSync(path.join(tmp, 'test/sprites.uv.json')));
+    assert.ok(fs.existsSync(path.join(tmp, 'test/sprites.atlas.lock.json')));
+
+    // UV-JSON has expected aliases
+    const uv = JSON.parse(fs.readFileSync(path.join(tmp, 'test/sprites.uv.json'), 'utf8'));
+    const aliases = Object.keys(uv.sprites).sort();
+    assert.deepStrictEqual(aliases, ['barrel_large', 'bed1', 'bench1', 'sack']);
+});