Initial commit: Clean DSS implementation

Migrated from design-system-swarm with fresh git history.
Old project history preserved in /home/overbits/apps/design-system-swarm

Core components:
- MCP Server (Python FastAPI with mcp 1.23.1)
- Claude Plugin (agents, commands, skills, strategies, hooks, core)
- DSS Backend (dss-mvp1 - token translation, Figma sync)
- Admin UI (Node.js/React)
- Server (Node.js/Express)
- Storybook integration (dss-mvp1/.storybook)

Self-contained configuration:
- All paths relative or use DSS_BASE_PATH=/home/overbits/dss
- PYTHONPATH configured for dss-mvp1 and dss-claude-plugin
- .env file with all configuration
- Claude plugin uses ${CLAUDE_PLUGIN_ROOT} for portability

Migration completed: $(date)
🤖 Clean migration with full functionality preserved

admin-ui/js/core/theme.js

@@ -0,0 +1,94 @@
+/**
+ * Theme Manager - Handles light/dark theme with cookie persistence
+ */
+
+class ThemeManager {
+  constructor() {
+    this.cookieName = 'dss-theme';
+    this.cookieExpireDays = 365;
+    this.init();
+  }
+
+  init() {
+    // Load theme from cookie or default to dark
+    const savedTheme = this.getCookie(this.cookieName) || 'dark';
+    this.setTheme(savedTheme, false); // Don't save on init
+  }
+
+  /**
+   * Get cookie value
+   */
+  getCookie(name) {
+    const value = `; ${document.cookie}`;
+    const parts = value.split(`; ${name}=`);
+    if (parts.length === 2) {
+      return parts.pop().split(';').shift();
+    }
+    return null;
+  }
+
+  /**
+   * Set cookie value
+   */
+  setCookie(name, value, days) {
+    const date = new Date();
+    date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
+    const expires = `expires=${date.toUTCString()}`;
+    document.cookie = `${name}=${value};${expires};path=/;SameSite=Lax`;
+  }
+
+  /**
+   * Set theme (light or dark)
+   */
+  setTheme(theme, save = true) {
+    const html = document.documentElement;
+
+    if (theme === 'dark') {
+      html.classList.add('dark');
+      html.classList.remove('light');
+    } else {
+      html.classList.add('light');
+      html.classList.remove('dark');
+    }
+
+    // Save to cookie
+    if (save) {
+      this.setCookie(this.cookieName, theme, this.cookieExpireDays);
+    }
+
+    // Dispatch event for other components
+    window.dispatchEvent(new CustomEvent('theme-changed', {
+      detail: { theme }
+    }));
+
+    return theme;
+  }
+
+  /**
+   * Toggle between light and dark
+   */
+  toggle() {
+    const currentTheme = this.getCurrentTheme();
+    const newTheme = currentTheme === 'dark' ? 'light' : 'dark';
+    return this.setTheme(newTheme);
+  }
+
+  /**
+   * Get current theme
+   */
+  getCurrentTheme() {
+    return document.documentElement.classList.contains('dark') ? 'dark' : 'light';
+  }
+
+  /**
+   * Check if dark mode is active
+   */
+  isDark() {
+    return this.getCurrentTheme() === 'dark';
+  }
+}
+
+// Create singleton instance
+const themeManager = new ThemeManager();
+
+export default themeManager;