feat: MLC support for Android

[grabbou]

This is working, but performance of MLC on Android is questionable and subject to further optimization. On top of that, top_k and aborting a stream are not supported (will require a follow-up PR to the engine itself).

Generally speaking, it all works just fine, but there's UI freeze first time you run the model, likely related to mlc-ai/mlc-llm#1401 (comment)

I have updated parameters on Android to make them slightly more user-friendly and generally cleaned-up models configuration.

Closes #118

Notable changes in the PR:

• fixed Gradle sync working
• removed support for old architecture
• proper references to precompiled MLC runtime (made in previous PR already)
• reworked and simplified model downloading
• added progress tracking (updated iOS as well)

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Project	Deployment	Preview	Comments	Updated (UTC)
ai	Ready	Preview	Comment	Oct 13, 2025 2:05pm

[grabbou]

Update: Seems to be working, but need to get real device tomorrow to check! 😂

[grabbou]

For the lack of objection, I am going to shamelessly merge this PR and move on with other features! Hopefully we can unlock some MLC issues in the meantime. Meanwhile, I'll work on some other interesting features!