refactor(qr): improve QR code scanning robustness and error handling

- Enhance JWT extraction with unified path handling and validation
- Add debouncing to prevent duplicate scans
- Improve error handling and logging throughout QR flow
- Add proper TypeScript interfaces for QR scan results
- Implement mobile app lifecycle handlers (pause/resume)
- Enhance logging with structured data and consistent levels
- Clean up scanner resources properly on component destroy
- Split contact handling into separate method for better organization
- Add proper type for UserNameDialog ref

This commit improves the reliability and maintainability of the QR code
scanning functionality while adding better error handling and logging.

src/utils/logger.ts

@@ -31,6 +31,17 @@ export const logger = {
       logToDb(message + argsString);
     }
   },
+  info: (message: string, ...args: unknown[]) => {
+    if (
+      process.env.NODE_ENV !== "production" ||
+      process.env.VITE_PLATFORM === "capacitor"
+    ) {
+      // eslint-disable-next-line no-console
+      console.info(message, ...args);
+      const argsString = args.length > 0 ? " - " + safeStringify(args) : "";
+      logToDb(message + argsString);
+    }
+  },
   warn: (message: string, ...args: unknown[]) => {
     if (
       process.env.NODE_ENV !== "production" ||