fix(cli): resolve executable path for Claude CLI on Windows

server/shared/claude-cli-path.test.ts

@@ -0,0 +1,47 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import {
+  resolveClaudeCodeExecutablePath,
+  type ResolveClaudeCodeExecutablePathDependencies,
+} from '@/shared/claude-cli-path.js';
+
+test('resolveClaudeCodeExecutablePath resolves the npm Claude wrapper to its native exe on Windows', () => {
+  const wrapperDir = 'C:\\nvm4w\\nodejs';
+  const nativePath = `${wrapperDir}\\node_modules\\@anthropic-ai\\claude-code\\bin\\claude.exe`;
+  const execFileSync =
+    (() => `${wrapperDir}\\claude\r\n${wrapperDir}\\claude.cmd\r\n`) as unknown as ResolveClaudeCodeExecutablePathDependencies['execFileSync'];
+  const readFileSync = (() => '') as unknown as ResolveClaudeCodeExecutablePathDependencies['readFileSync'];
+
+  const resolved = resolveClaudeCodeExecutablePath('claude', {
+    platform: 'win32',
+    execFileSync,
+    existsSync: (candidate) => candidate === nativePath,
+    readFileSync,
+  });
+
+  assert.equal(resolved, nativePath);
+});
+
+test('resolveClaudeCodeExecutablePath keeps an explicit JavaScript launcher path unchanged', () => {
+  const scriptPath = 'C:\\tools\\claude.js';
+
+  const resolved = resolveClaudeCodeExecutablePath(scriptPath, {
+    platform: 'win32',
+  });
+
+  assert.equal(resolved, scriptPath);
+});
+
+test('resolveClaudeCodeExecutablePath falls back to the configured command when PATH lookup fails', () => {
+  const execFileSync = (() => {
+    throw new Error('not found');
+  }) as unknown as ResolveClaudeCodeExecutablePathDependencies['execFileSync'];
+
+  const resolved = resolveClaudeCodeExecutablePath('claude', {
+    platform: 'win32',
+    execFileSync,
+  });
+
+  assert.equal(resolved, 'claude');
+});