Initial release: JMAP Webmail Client

A modern, privacy-focused webmail client built with Next.js and the JMAP protocol.
Designed for Stalwart Mail Server.

Features:
- Full email operations (compose, reply, forward, threading)
- Real-time push notifications
- Dark/light theme support
- Mobile responsive design
- Keyboard shortcuts
- Drag-and-drop organization
- i18n (English/French)
- Security-first (external content blocked, HTML sanitization)

lib/debug.ts

@@ -0,0 +1,77 @@
+import { useSettingsStore } from '@/stores/settings-store';
+
+/**
+ * Debug logger that respects the debugMode setting.
+ * Use this instead of console.log for conditional debug output.
+ */
+export const debug = {
+  /**
+   * Log a debug message (only when debugMode is enabled)
+   */
+  log: (...args: unknown[]) => {
+    if (useSettingsStore.getState().debugMode) {
+      console.log('[DEBUG]', ...args);
+    }
+  },
+
+  /**
+   * Log a warning message (only when debugMode is enabled)
+   */
+  warn: (...args: unknown[]) => {
+    if (useSettingsStore.getState().debugMode) {
+      console.warn('[DEBUG]', ...args);
+    }
+  },
+
+  /**
+   * Log an error message (always logs, regardless of debugMode)
+   */
+  error: (...args: unknown[]) => {
+    console.error('[ERROR]', ...args);
+  },
+
+  /**
+   * Start a collapsed console group (only when debugMode is enabled)
+   */
+  group: (label: string) => {
+    if (useSettingsStore.getState().debugMode) {
+      console.group(`[DEBUG] ${label}`);
+    }
+  },
+
+  /**
+   * End a console group (only when debugMode is enabled)
+   */
+  groupEnd: () => {
+    if (useSettingsStore.getState().debugMode) {
+      console.groupEnd();
+    }
+  },
+
+  /**
+   * Start a performance timer (only when debugMode is enabled)
+   */
+  time: (label: string) => {
+    if (useSettingsStore.getState().debugMode) {
+      console.time(`[DEBUG] ${label}`);
+    }
+  },
+
+  /**
+   * End a performance timer (only when debugMode is enabled)
+   */
+  timeEnd: (label: string) => {
+    if (useSettingsStore.getState().debugMode) {
+      console.timeEnd(`[DEBUG] ${label}`);
+    }
+  },
+
+  /**
+   * Log a table (only when debugMode is enabled)
+   */
+  table: (data: unknown) => {
+    if (useSettingsStore.getState().debugMode) {
+      console.table(data);
+    }
+  }
+};