fix(qr-scanner): robustly handle array/object detection results and guarantee dialog dismissal

- Update QRScannerDialog.vue to handle both array and object detection results in onDetect fallback logic (supports vue-qrcode-reader returning arrays).
- Ensure dialog closes and scan is processed for all detection result shapes.
- Use arrow function for close() to guarantee correct binding with vue-facing-decorator.
- Add enhanced logging for all dialog lifecycle and close/cleanup events.
- In WebDialogQRScanner, use direct mount result (not $refs) for dialogComponent to ensure correct instance.
- Add sessionId and improved logging for dialog open/close/cleanup lifecycle.

src/utils/LogCollector.ts

@@ -0,0 +1,45 @@
+type LogLevel = "log" | "info" | "warn" | "error";
+
+interface LogEntry {
+  level: LogLevel;
+  message: any[];
+  timestamp: string;
+}
+
+class LogCollector {
+  private logs: LogEntry[] = [];
+  private originalConsole: Partial<
+    Record<LogLevel, (..._args: any[]) => void>
+  > = {};
+
+  constructor() {
+    (["log", "info", "warn", "error"] as LogLevel[]).forEach((level) => {
+      this.originalConsole[level] = console[level];
+      console[level] = (..._args: any[]) => {
+        this.logs.push({
+          level,
+          message: _args,
+          timestamp: new Date().toISOString(),
+        });
+        this.originalConsole[level]?.apply(console, _args);
+      };
+    });
+  }
+
+  getLogs(): string {
+    return this.logs
+      .map(
+        (entry) =>
+          `[${entry.timestamp}] [${entry.level.toUpperCase()}] ${entry.message
+            .map((m) => (typeof m === "object" ? JSON.stringify(m) : String(m)))
+            .join(" ")}`,
+      )
+      .join("\n");
+  }
+
+  clear() {
+    this.logs = [];
+  }
+}
+
+export const logCollector = new LogCollector();