Make TUI voice input optional on Linux

[kevinyang372]

Description

Makes Warp Agent CLI voice input an explicit warp_tui/voice_input feature instead of enabling it through every TUI build.

Linux TUI release bundles deliberately omit the feature, removing the unconditional CPAL → ALSA dependency that prevented the binary from starting on minimal Linux environments without libasound.so.2. macOS and Windows bundles explicitly retain voice input through their native audio backends.

No-voice builds now compile the TUI voice integration out entirely rather than substituting a disabled placeholder model. They do not construct or subscribe to a voice model, register voice actions or bindings, enable modifier-key reporting, or render voice input controls. The GUI gui feature continues to enable voice input and is unchanged.

Linked Issue

User-reported Warp Agent CLI preview regression; no issue filed.

Testing

• ./script/format
• cargo clippy --workspace --exclude warp_completer --all-targets --tests -- -D warnings
• cargo clippy -p warp --all-targets --tests -- -D warnings
• cargo clippy -p warp_completer --all-targets --tests -- -D warnings
• cargo check -p warp_tui
• cargo check -p warp_tui --features voice_input
• cargo test -p warp_tui --no-run
• cargo test -p warp_tui --features voice_input --no-run
• cargo nextest run -p warp_tui — 936 passed
• cargo nextest run -p warp_tui --features voice_input — 955 passed
• cargo clippy -p warp_tui --all-targets -- -D warnings
• cargo clippy -p warp_tui --all-targets --features voice_input -- -D warnings
• Linux cargo tree: default TUI has no alsa package; --features voice_input restores warp_tui → warp → voice_input → cpal → alsa
• Shell syntax validation for the modified Linux/macOS bundle and local TUI scripts

A Linux bundle was not run end-to-end from this macOS host; the Linux-target dependency graph verifies that the startup dependency is absent.

• I have manually tested my changes locally with ./script/run

Agent Mode

• Warp Agent Mode - This PR was created via Warp's AI Agent Mode
• Conversation: https://staging.warp.dev/conversation/680c472e-b33f-4a5c-afae-fb98ee9def1a

CHANGELOG-BUG-FIX: Fixed Warp Agent CLI failing to launch on minimal Linux systems without ALSA installed.
CHANGELOG-TUI: Fixed Warp Agent CLI failing to launch on minimal Linux systems without ALSA installed.

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@kevinyang372

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[kevinyang372]

• Make TUI voice input optional on Linux #14611 👈 (View in Graphite)
• master

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[oz-for-oss]

Overview

This PR makes TUI voice input an opt-in warp_tui feature, omits it from Linux portable bundles, keeps it enabled for macOS/Windows bundles, and adds a disabled fallback module plus feature-gated tests.

Concerns

• Missing TUI behavioral evidence for a user-facing change. The PR body has no testing notes or TUI transcript/render snapshot/./script/run-tui capture showing the disabled Linux path and the enabled macOS/Windows/local-dev path. For this TUI-facing change, please attach terminal evidence demonstrating the voice statusline/keybinding behavior end to end.

Verdict

Found: 0 critical, 1 important, 0 suggestions

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