webui: fix the quality + button rendering as text

[Rust-KVM]

Requested by 4c · project thread

Summary

Before (regression from #47): the stream quality "+" button rendered as garbled text and stayed disabled, so quality could never be raised.

After: both quality buttons render normally; "+" is disabled only at 100% and "−" only at 10%.

How

In the view! macro an unbraced quality.get() >= 0.95 inside the disabled= attribute was parsed with the > closing the tag, so the rest leaked into the button body. Wrapping both comparisons in braces (move || { ... }) keeps the whole expression in the attribute.

Testing

• cargo +nightly fmt --all (CI)
• cargo +nightly clippy --workspace --release --all-targets -- -D warnings (CI)
• cargo +nightly test --workspace (CI)
• Frontend touched: trunk build --locked and wasm32 clippy in crates/rkvm-web (CI)
• Tested on an RK3588 device: deployed to the NanoPC-T6; the garbled text is gone and the button renders correctly.

Checklist

• No #[allow(...)] suppressions and no new unwrap() / expect() in production paths
• Hot paths stay zero-copy; periodic loops use MissedTickBehavior::Delay
• Shared protocol types live in rkvm-proto
• RPC method set changed → not applicable
• Module tree or build invariants changed → not applicable

🤖 Generated with Claude Code

https://claude.ai/code/session_01PbdzY6PfT28goR4BhqdsXR

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