v1.2.129-beta.6

Beta build of main at fa984c9.

Changes since v1.2.129-beta.5:

• test(dev-machine): resolve the temp home like the registry does, so Windows 8.3 paths match (#2051)
• docs: ADE Beta page and README section with the public TestFlight beta (#2052)
• feat(integrations): Agent 37 cloud machines, one click from the picker (#2050)