When on autopilot, quit the game when initialization fails

[AnsisMalins]

Pull Request Description

What does this PR change?

This change has the game quit when it is irrecoverably dead. Normally, in that case, the game just stays at the pyramid spinner forever.

Test Instructions

On Windows, the command line is
Decentraland.exe -logFile "%CD%\log.txt" --autopilot

On Windows, the aa folder is in
Decentraland_windows64\Decentraland_Data\StreamingAssets

On macOS, the command line is
open Decentraland.app --args -logFile "$PWD/log.txt" --autopilot

On macOS, the aa folder is in
build/Decentraland.app/Contents/Resources/Data/StreamingAsets

To get inside Decentraland.app, you right click and pick Show Package Contents.

Test Steps

1. Unzip the build
2. Delete the contents of the aa folder
3. Run the game with the arguments listed above
4. See that the game quits immediately
5. See that the log file contains a message about the game being irrecoverably dead

Quality Checklist

• Changes have been tested locally
• Documentation has been updated (if required)
• Performance impact has been considered
• For SDK features: Test scene is included

Code Review Reference

Please review our Code Review Standards before submitting.

[github-actions]

Windows and Mac build successful in Unity Cloud! You can find a link to the downloadable artifact below.

Name	Link
Commit	2c15006
Logs	https://github.com/decentraland/unity-explorer/actions/runs/22632938389
Download Windows	https://github.com/decentraland/unity-explorer/suites/59209330915/artifacts/5745179000
Download Windows S3	https://explorer-artifacts.decentraland.org/@dcl/unity-explorer/branch/feat/autopilot-quit-when-dead/pr-19342-2c15006/Decentraland_windows64.zip
Download Mac	https://github.com/decentraland/unity-explorer/suites/59209330915/artifacts/5745072171
Download Mac S3	https://explorer-artifacts.decentraland.org/@dcl/unity-explorer/branch/feat/autopilot-quit-when-dead/pr-19342-2c15006/Decentraland_macos.zip
Built on	2026-03-03T17:10:35Z

Artifact size check

Target	Size (MB / MiB)	Cap (MB)	Δ MB vs release	Δ % vs release	Result
windows64	353.0 / 336.6	320	35	11.01%	❌ CAP EXCEEDED
macos	440.0 / 419.6	410	33	8.11%	❌ CAP EXCEEDED

Comparing against: v0.129.0-alpha