Forward CLI agent env vars into WSL

[gabrimatic]

Description

Fixes WSL sessions not receiving the environment variables needed for structured CLI agent notifications. The WSLENV allowlist now forwards WARP_CLIENT_VERSION and, when HOA notifications are enabled, WARP_CLI_AGENT_PROTOCOL_VERSION into WSL.

This also extracts the WSLENV construction into a small helper and adds regression coverage for the notification flag disabled/enabled cases.

Linked Issue

Fixes #10147

• This is a triaged bug report, which CONTRIBUTING.md treats as implicitly ready-to-implement.
• No screenshots or video needed; this is an environment propagation fix with no UI surface.

Testing

• cargo fmt -- --check
• git diff --check
• find . -name "*.wgsl" -exec wgslfmt --check {} +
• cargo clippy -p warp --lib --all-features -- -D warnings
• cargo check -p warp --lib --target x86_64-pc-windows-gnu --tests
• ./script/presubmit was started and passed cargo fmt, both clippy passes, and clang-format before stopping because wgslfmt was not installed locally. After installing the repo-pinned wgslfmt, the WGSL formatting check above passed.

Changelog Entries for Stable

CHANGELOG-BUG-FIX: Fixed CLI agent notifications in WSL sessions by forwarding the required Warp environment variables into WSL.

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[oz-for-oss]

@gabrimatic

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[gabrimatic]

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[oz-for-oss]

Overview

This PR forwards the Warp client version and, when HOA notifications are enabled, the CLI agent protocol version through WSLENV so WSL shells receive the notification-related environment needed by CLI agents. It also extracts the WSLENV construction into a helper and adds regression coverage for the feature-flag-disabled and enabled cases.

Concerns

• None. The added WSLENV entries correspond to non-secret metadata already inserted into the shell environment, and the feature-flag gating for the protocol version remains consistent with the variable injection.

Verdict

Found: 0 critical, 0 important, 0 suggestions

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[zachbai]

tagging @acarl005 for this one

[acarl005]

Thanks for the fix!