Handle deep link notifications from new Flutter DAP - #6140

src/test/flutter_debug/flutter_run.test_device.test.ts:641

• The stubbed showWarningMessage call arguments are being interpreted incorrectly: args[1] is the first button label (a string), not a string[]. This makes the buttons assertion ineffective and can mask failures. Also, the test should wait for the dialog to be shown before asserting, to avoid flakiness.

		assert.ok(showInformationMessage.called);
		const args = showInformationMessage.getCalls()[0].args;
		const message = args[0] as string;
		const buttons = args[1] as string[];
		assert.ok(message.includes("A RenderFlex overflowed by"));
		assert.ok(buttons[0], "Inspect Widget");
	});

src/extension/commands/debug.ts:1061

• The catch block drops the underlying exception details, which makes it harder to diagnose why a deep link failed to parse. Logging the caught error/stack alongside the URL would provide much better troubleshooting information.

		} catch {
			this.logger.error(`Failed to parse DevTools deep link URL: ${deepLinkUrl}`);
			return undefined;
		}