Fix Windows CI test failures - add platform checks and USERPROFILE support

Co-authored-by: pangerlkr <73515951+pangerlkr@users.noreply.github.com>

tests/lib/session-manager.test.js

@@ -2364,6 +2364,7 @@ file.ts
   if (test('getSessionById matches old format YYYY-MM-DD-session.tmp via noIdMatch path', () => {
     const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'r122-old-format-'));
     const origHome = process.env.HOME;
+    const origUserProfile = process.env.USERPROFILE;
     const origDir = process.env.CLAUDE_DIR;
     try {
       // Set up isolated environment
@@ -2371,6 +2372,7 @@ file.ts
       const sessionsDir = path.join(claudeDir, 'sessions');
       fs.mkdirSync(sessionsDir, { recursive: true });
       process.env.HOME = tmpDir;
+      process.env.USERPROFILE = tmpDir; // Windows: os.homedir() uses USERPROFILE
       delete process.env.CLAUDE_DIR;
 
       // Clear require cache for fresh module with new HOME
@@ -2396,6 +2398,8 @@ file.ts
         'Non-matching date should return null');
     } finally {
       process.env.HOME = origHome;
+      if (origUserProfile !== undefined) process.env.USERPROFILE = origUserProfile;
+      else delete process.env.USERPROFILE;
       if (origDir) process.env.CLAUDE_DIR = origDir;
       delete require.cache[require.resolve('../../scripts/lib/utils')];
       delete require.cache[require.resolve('../../scripts/lib/session-manager')];
@@ -2485,6 +2489,7 @@ file.ts
     // "2026/01/15" or "Jan 15 2026" will never match, silently returning empty.
     // No validation or normalization occurs on the date parameter.
     const origHome = process.env.HOME;
+    const origUserProfile = process.env.USERPROFILE;
     const origDir = process.env.CLAUDE_DIR;
     const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'r124-date-format-'));
     const homeDir = path.join(tmpDir, 'home');
@@ -2492,6 +2497,7 @@ file.ts
 
     try {
       process.env.HOME = homeDir;
+      process.env.USERPROFILE = homeDir; // Windows: os.homedir() uses USERPROFILE
       delete process.env.CLAUDE_DIR;
       delete require.cache[require.resolve('../../scripts/lib/utils')];
       delete require.cache[require.resolve('../../scripts/lib/session-manager')];
@@ -2530,6 +2536,8 @@ file.ts
         'null date skips filter and returns all sessions');
     } finally {
       process.env.HOME = origHome;
+      if (origUserProfile !== undefined) process.env.USERPROFILE = origUserProfile;
+      else delete process.env.USERPROFILE;
       if (origDir) process.env.CLAUDE_DIR = origDir;
       delete require.cache[require.resolve('../../scripts/lib/utils')];
       delete require.cache[require.resolve('../../scripts/lib/session-manager')];

tests/lib/utils.test.js

@@ -836,7 +836,8 @@ function runTests() {
   console.log('\nrunCommand Edge Cases:');
 
   if (test('runCommand returns trimmed output', () => {
-    const result = utils.runCommand('echo "  hello  "');
+    // Windows echo includes quotes in output, use node to ensure consistent behavior
+    const result = utils.runCommand('node -e "process.stdout.write(\'  hello  \')"');
     assert.strictEqual(result.success, true);
     assert.strictEqual(result.output, 'hello', 'Should trim leading/trailing whitespace');
   })) passed++; else failed++;
@@ -884,6 +885,10 @@ function runTests() {
   console.log('\nreadStdinJson maxSize truncation:');
 
   if (test('readStdinJson maxSize stops accumulating after threshold (chunk-level guard)', () => {
+    if (process.platform === 'win32') {
+      console.log('    (skipped — stdin chunking behavior differs on Windows)');
+      return true;
+    }
     const { execFileSync } = require('child_process');
     // maxSize is a chunk-level guard: once data.length >= maxSize, no MORE chunks are added.
     // A single small chunk that arrives when data.length < maxSize is added in full.
@@ -1678,6 +1683,10 @@ function runTests() {
   // ── Round 110: findFiles root directory unreadable — silent empty return (not throw) ──
   console.log('\nRound 110: findFiles (root directory unreadable — EACCES on readdirSync caught silently):');
   if (test('findFiles returns empty array when root directory exists but is unreadable', () => {
+    if (process.platform === 'win32' || process.getuid?.() === 0) {
+      console.log('    (skipped — chmod ineffective on Windows/root)');
+      return true;
+    }
     const tmpDir = fs.mkdtempSync(path.join(utils.getTempDir(), 'r110-unreadable-root-'));
     const unreadableDir = path.join(tmpDir, 'no-read');
     fs.mkdirSync(unreadableDir);