fix(skills): harden openclaw persona forge

tests/scripts/openclaw-persona-forge-gacha.test.js

@@ -0,0 +1,91 @@
+const assert = require('assert');
+const path = require('path');
+const { spawnSync } = require('child_process');
+
+const SCRIPT = path.join(
+  __dirname,
+  '..',
+  '..',
+  'skills',
+  'openclaw-persona-forge',
+  'gacha.py'
+);
+
+function findPython() {
+  const candidates = process.platform === 'win32'
+    ? ['python', 'python3']
+    : ['python3', 'python'];
+
+  for (const candidate of candidates) {
+    const result = spawnSync(candidate, ['--version'], { encoding: 'utf8' });
+    if (result.status === 0) {
+      return candidate;
+    }
+  }
+
+  return null;
+}
+
+function runGacha(pythonBin, arg) {
+  return spawnSync(pythonBin, [SCRIPT, arg], {
+    encoding: 'utf8',
+    maxBuffer: 10 * 1024 * 1024,
+  });
+}
+
+function runTest(name, fn) {
+  try {
+    fn();
+    console.log(`  PASS: ${name}`);
+    return true;
+  } catch (error) {
+    console.log(`  FAIL: ${name}`);
+    console.error(`    ${error.message}`);
+    return false;
+  }
+}
+
+function assertSingleDrawOutput(result) {
+  assert.strictEqual(result.status, 0, result.stderr);
+  assert.match(result.stdout, /\[身份\] 前世身份:/);
+  assert.match(result.stdout, /\[概括\] 一句话概括:/);
+}
+
+function main() {
+  console.log('\n=== Testing openclaw-persona-forge/gacha.py ===\n');
+
+  const pythonBin = findPython();
+  if (!pythonBin) {
+    console.log('  PASS: skipped (python runtime unavailable)');
+    return;
+  }
+
+  let passed = 0;
+  let failed = 0;
+
+  const tests = [
+    ['clamps zero draws to one', () => {
+      assertSingleDrawOutput(runGacha(pythonBin, '0'));
+    }],
+    ['clamps negative draws to one', () => {
+      assertSingleDrawOutput(runGacha(pythonBin, '-3'));
+    }],
+  ];
+
+  for (const [name, fn] of tests) {
+    if (runTest(name, fn)) {
+      passed += 1;
+    } else {
+      failed += 1;
+    }
+  }
+
+  console.log(`\nPassed: ${passed}`);
+  console.log(`Failed: ${failed}`);
+
+  if (failed > 0) {
+    process.exit(1);
+  }
+}
+
+main();