refactor: move setup scripts out of src/ to reduce build token count

Setup scripts are standalone CLI tools run via tsx with no runtime
imports from the main app. Moving them out of src/ excludes them from
the tsc build output and reduces the compiled bundle size.

- git mv src/setup/ setup/
- Fix imports to use ../src/logger.js and ../src/config.js
- Update package.json, vitest.config.ts, SKILL.md references
- Fix platform tests to be cross-platform (macOS + Linux)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

setup/service.test.ts

@@ -0,0 +1,134 @@
+import { describe, it, expect } from 'vitest';
+import path from 'path';
+
+/**
+ * Tests for service configuration generation.
+ *
+ * These tests verify the generated content of plist/systemd/nohup configs
+ * without actually loading services.
+ */
+
+// Helper: generate a plist string the same way service.ts does
+function generatePlist(nodePath: string, projectRoot: string, homeDir: string): string {
+  return `<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>Label</key>
+    <string>com.nanoclaw</string>
+    <key>ProgramArguments</key>
+    <array>
+        <string>${nodePath}</string>
+        <string>${projectRoot}/dist/index.js</string>
+    </array>
+    <key>WorkingDirectory</key>
+    <string>${projectRoot}</string>
+    <key>RunAtLoad</key>
+    <true/>
+    <key>KeepAlive</key>
+    <true/>
+    <key>EnvironmentVariables</key>
+    <dict>
+        <key>PATH</key>
+        <string>/usr/local/bin:/usr/bin:/bin:${homeDir}/.local/bin</string>
+        <key>HOME</key>
+        <string>${homeDir}</string>
+    </dict>
+    <key>StandardOutPath</key>
+    <string>${projectRoot}/logs/nanoclaw.log</string>
+    <key>StandardErrorPath</key>
+    <string>${projectRoot}/logs/nanoclaw.error.log</string>
+</dict>
+</plist>`;
+}
+
+function generateSystemdUnit(
+  nodePath: string,
+  projectRoot: string,
+  homeDir: string,
+  isSystem: boolean,
+): string {
+  return `[Unit]
+Description=NanoClaw Personal Assistant
+After=network.target
+
+[Service]
+Type=simple
+ExecStart=${nodePath} ${projectRoot}/dist/index.js
+WorkingDirectory=${projectRoot}
+Restart=always
+RestartSec=5
+Environment=HOME=${homeDir}
+Environment=PATH=/usr/local/bin:/usr/bin:/bin:${homeDir}/.local/bin
+StandardOutput=append:${projectRoot}/logs/nanoclaw.log
+StandardError=append:${projectRoot}/logs/nanoclaw.error.log
+
+[Install]
+WantedBy=${isSystem ? 'multi-user.target' : 'default.target'}`;
+}
+
+describe('plist generation', () => {
+  it('contains the correct label', () => {
+    const plist = generatePlist('/usr/local/bin/node', '/home/user/nanoclaw', '/home/user');
+    expect(plist).toContain('<string>com.nanoclaw</string>');
+  });
+
+  it('uses the correct node path', () => {
+    const plist = generatePlist('/opt/node/bin/node', '/home/user/nanoclaw', '/home/user');
+    expect(plist).toContain('<string>/opt/node/bin/node</string>');
+  });
+
+  it('points to dist/index.js', () => {
+    const plist = generatePlist('/usr/local/bin/node', '/home/user/nanoclaw', '/home/user');
+    expect(plist).toContain('/home/user/nanoclaw/dist/index.js');
+  });
+
+  it('sets log paths', () => {
+    const plist = generatePlist('/usr/local/bin/node', '/home/user/nanoclaw', '/home/user');
+    expect(plist).toContain('nanoclaw.log');
+    expect(plist).toContain('nanoclaw.error.log');
+  });
+});
+
+describe('systemd unit generation', () => {
+  it('user unit uses default.target', () => {
+    const unit = generateSystemdUnit('/usr/bin/node', '/home/user/nanoclaw', '/home/user', false);
+    expect(unit).toContain('WantedBy=default.target');
+  });
+
+  it('system unit uses multi-user.target', () => {
+    const unit = generateSystemdUnit('/usr/bin/node', '/home/user/nanoclaw', '/home/user', true);
+    expect(unit).toContain('WantedBy=multi-user.target');
+  });
+
+  it('contains restart policy', () => {
+    const unit = generateSystemdUnit('/usr/bin/node', '/home/user/nanoclaw', '/home/user', false);
+    expect(unit).toContain('Restart=always');
+    expect(unit).toContain('RestartSec=5');
+  });
+
+  it('sets correct ExecStart', () => {
+    const unit = generateSystemdUnit('/usr/bin/node', '/srv/nanoclaw', '/home/user', false);
+    expect(unit).toContain('ExecStart=/usr/bin/node /srv/nanoclaw/dist/index.js');
+  });
+});
+
+describe('WSL nohup fallback', () => {
+  it('generates a valid wrapper script', () => {
+    const projectRoot = '/home/user/nanoclaw';
+    const nodePath = '/usr/bin/node';
+    const pidFile = path.join(projectRoot, 'nanoclaw.pid');
+
+    // Simulate what service.ts generates
+    const wrapper = `#!/bin/bash
+set -euo pipefail
+cd ${JSON.stringify(projectRoot)}
+nohup ${JSON.stringify(nodePath)} ${JSON.stringify(projectRoot)}/dist/index.js >> ${JSON.stringify(projectRoot)}/logs/nanoclaw.log 2>> ${JSON.stringify(projectRoot)}/logs/nanoclaw.error.log &
+echo $! > ${JSON.stringify(pidFile)}`;
+
+    expect(wrapper).toContain('#!/bin/bash');
+    expect(wrapper).toContain('nohup');
+    expect(wrapper).toContain(nodePath);
+    expect(wrapper).toContain('nanoclaw.pid');
+  });
+});