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/error-reporting.ts

@@ -0,0 +1,43 @@
+import { debug } from "./debug";
+
+interface ErrorReport {
+  error: Error;
+  errorInfo?: React.ErrorInfo;
+  zone: string;
+  timestamp: Date;
+  userAgent: string;
+  url: string;
+}
+
+/**
+ * Report an error to the logging system.
+ * In debug mode, logs detailed information to the console.
+ * Future: Can be extended to send to external error tracking services.
+ */
+export function reportError(
+  error: Error,
+  zone: string,
+  errorInfo?: React.ErrorInfo
+): void {
+  const report: ErrorReport = {
+    error,
+    errorInfo,
+    zone,
+    timestamp: new Date(),
+    userAgent: typeof navigator !== "undefined" ? navigator.userAgent : "SSR",
+    url: typeof window !== "undefined" ? window.location.href : "",
+  };
+
+  // Always log errors
+  debug.error(`[ErrorBoundary:${zone}]`, error.message, {
+    stack: error.stack,
+    componentStack: errorInfo?.componentStack,
+    url: report.url,
+    timestamp: report.timestamp.toISOString(),
+  });
+
+  // Future: Send to error tracking service (Sentry, etc.)
+  // if (process.env.NODE_ENV === 'production') {
+  //   sendToErrorService(report);
+  // }
+}