feat(ui): unify themes and harden app flows

[MuxYang]

Summary

• Split and standardize Material, Miuix, and LiquidGlass UI behavior, including dropdowns, title/navigation controls, bottom navigation, and page transitions.
• Restore and harden campus card/network/bathroom/electricity recharge, empty classroom, lost-and-found, evaluation, exam, repository, update, and authenticated session flows.
• Reduce main-thread work and optimize home, schedule, academic, repository-index, and update loading paths.
• Preserve weather models under R8 and isolate background personalization training failures from app stability.

Verification

• Focused unit tests passed for session refresh, exam cache, repository index, APK source switching, R8 weather contracts, and journey failure isolation.
• Debug build passed; installed and launched on K70E over TCP.
• R8 Review Release built and installed as com.ahu.ahutonh with a debug signature; weather and the previous background crash sequence were verified.
• Production package was not launched.

Notes

• This PR is one squashed Conventional Commit based on the latest upstream/master.
• Local _cmb and other uncommitted workspace files are excluded.

[MuxYang]

Closing this PR because the Rust CI workflow requires sdk/Cargo.lock while the checked-out repository does not provide it. I will replace it with a corrected squashed PR.