fix(asr): stabilize MiMo HTTP tests on macOS

[H-Chris233]

User description

Summary

• Fix the post-merge macOS CI failure in MiMo ASR tests.
• Explicitly switch accepted TCP streams back to blocking mode in the local HTTP test server.
• Keeps the nonblocking listener polling, but makes request-body reads deterministic across macOS/Linux.

Root Cause

The failing beta push run was 27059512049, job macOS checks, step Run Rust backend unit tests.
mimo_splits_audio_before_base64_limit panicked on macOS with WouldBlock while reading the large local HTTP request body because the accepted TcpStream behaved as nonblocking. The client then saw Connection reset by peer.

Test Plan

• cargo test --manifest-path "openless-all/app/src-tauri/Cargo.toml" mimo_splits_audio_before_base64_limit -- --test-threads=1
• cargo test --manifest-path "openless-all/app/src-tauri/Cargo.toml" --lib
• git diff --check
• git diff --cached --check

Follow-up to #607 / Refs #600

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PR Type

Bug fix

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Description

• Fix MiMo ASR test failure on macOS by setting accepted TCP streams to blocking mode

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File Walkthrough

	Relevant files
Bug fix	mimo.rs Add blocking mode to test HTTP streams                                      openless-all/app/src-tauri/src/asr/mimo.rs Added stream.set_nonblocking(false) to two test helper functions after accepting connections Prevents WouldBlock error on macOS when reading request body from nonblocking streams +2/-0

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[github-actions]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

🎫 Ticket compliance analysis ❌ 600 - Not compliant Non-compliant requirements: Add Xiaomi MiMo ASR provider 607 - Partially compliant Compliant requirements: Ensure tests pass on all platforms (test plan includes cargo test) Non-compliant requirements: Add Xiaomi MiMo ASR as a cloud ASR provider using /chat/completions + input_audio protocol Implement batch ASR client with 180s chunking and joining Add settings, overview, i18n entries and provider validation/model-list handling

⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🧪 PR contains tests

🔒 No security concerns identified

⚡ No major issues detected