feat: cross-platform support with Node.js scripts

- Rewrite all bash hooks to Node.js for Windows/macOS/Linux compatibility
- Add package manager auto-detection (npm, pnpm, yarn, bun)
- Add scripts/lib/ with cross-platform utilities
- Add /setup-pm command for package manager configuration
- Add comprehensive test suite (62 tests)

Co-authored-by: zerx-lab

tests/run-all.js

@@ -0,0 +1,76 @@
+#!/usr/bin/env node
+/**
+ * Run all tests
+ *
+ * Usage: node tests/run-all.js
+ */
+
+const { execSync } = require('child_process');
+const path = require('path');
+const fs = require('fs');
+
+const testsDir = __dirname;
+const testFiles = [
+  'lib/utils.test.js',
+  'lib/package-manager.test.js',
+  'hooks/hooks.test.js'
+];
+
+console.log('╔══════════════════════════════════════════════════════════╗');
+console.log('║           Everything Claude Code - Test Suite            ║');
+console.log('╚══════════════════════════════════════════════════════════╝');
+console.log();
+
+let totalPassed = 0;
+let totalFailed = 0;
+let totalTests = 0;
+
+for (const testFile of testFiles) {
+  const testPath = path.join(testsDir, testFile);
+
+  if (!fs.existsSync(testPath)) {
+    console.log(`⚠ Skipping ${testFile} (file not found)`);
+    continue;
+  }
+
+  console.log(`\n━━━ Running ${testFile} ━━━`);
+
+  try {
+    const output = execSync(`node "${testPath}"`, {
+      encoding: 'utf8',
+      stdio: ['pipe', 'pipe', 'pipe']
+    });
+    console.log(output);
+
+    // Parse results from output
+    const passedMatch = output.match(/Passed:\s*(\d+)/);
+    const failedMatch = output.match(/Failed:\s*(\d+)/);
+
+    if (passedMatch) totalPassed += parseInt(passedMatch[1], 10);
+    if (failedMatch) totalFailed += parseInt(failedMatch[1], 10);
+
+  } catch (err) {
+    console.log(err.stdout || '');
+    console.log(err.stderr || '');
+
+    // Parse results even on failure
+    const output = (err.stdout || '') + (err.stderr || '');
+    const passedMatch = output.match(/Passed:\s*(\d+)/);
+    const failedMatch = output.match(/Failed:\s*(\d+)/);
+
+    if (passedMatch) totalPassed += parseInt(passedMatch[1], 10);
+    if (failedMatch) totalFailed += parseInt(failedMatch[1], 10);
+  }
+}
+
+totalTests = totalPassed + totalFailed;
+
+console.log('\n╔══════════════════════════════════════════════════════════╗');
+console.log('║                     Final Results                        ║');
+console.log('╠══════════════════════════════════════════════════════════╣');
+console.log(`║  Total Tests: ${String(totalTests).padStart(4)}                                      ║`);
+console.log(`║  Passed:      ${String(totalPassed).padStart(4)}  ✓                                   ║`);
+console.log(`║  Failed:      ${String(totalFailed).padStart(4)}  ${totalFailed > 0 ? '✗' : ' '}                                   ║`);
+console.log('╚══════════════════════════════════════════════════════════╝');
+
+process.exit(totalFailed > 0 ? 1 : 0);