Fix Vulkan and Oboe support on Android

[google-labs-jules]

• Replaced NuGet ppy.osu.Framework references with local project references to the winnerspiros/osu-framework fork.
• Integrated the native Vulkan probe into the UI; Vulkan renderer now only appears if recommended by the hardware check.
• Enhanced Oboe audio redirection to capture all active BASS mixers in AudioManager.
• Added dynamic refresh to the Oboe redirector to handle newly created mixers during runtime.
• Updated solution and props files to ensure consistent local framework usage.

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PR created automatically by Jules for task 58228484722015673 started by @winnerspiros

[google-labs-jules]

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