[ca] Update Copilot CLI to 0.0.408

[github-actions]

Update Summary

GitHub Copilot CLI has been updated from version 0.0.407 to 0.0.408.

• Current Version: 0.0.407
• Latest Version: 0.0.408
• Published Date: 2026-02-12T12:03:10Z (today)
• Release Type: Stable (tagged as "latest" on NPM)
• Update Priority: Medium
• Breaking Changes: Unknown (pending full release notes)

Update Status

✅ Constants Updated: pkg/constants/constants.go has been modified with the new version
⚠️ Recompile Failed: Build failed due to Go 1.25.0 toolchain unavailability (same as previous run #21930621704)

Version Information

NPM Package: https://www.npmjs.com/package/`@github/copilot`

Git Commit Hashes:

• 0.0.407: b691a1aae62b2ea881d4a6da935714c36eaf232f
• 0.0.408: c66f2d478cdafbfb27d61ec96ae0b95ef54563d1

Recent Version Timeline:

0.0.404-0
0.0.404    
0.0.405    
0.0.406-0  
0.0.406-1  
0.0.406    
0.0.407-0  (prerelease)
0.0.407-1  (prerelease, current dist-tag)
0.0.407    (Feb 11, 2026)
0.0.408    (Feb 12, 2026) ← Latest
```

### Release Analysis

<details>
<summary><b>View Release Details</b></summary>

#### Release Timing
Version 0.0.408 was published on **February 12, 2026**, just **one day** after version 0.0.407 (February 11, 2026). This rapid release cycle suggests:
- Potential hotfix or critical bug fix
- Minor enhancement or patch
- Possible regression fix from 0.0.407

#### Known Features from 0.0.407
The 0.0.407 release (published one day prior) included:
- Improved authentication error messaging
- Quota guidance enhancements
- Theme customization support
- `/on-air` mode for streaming
- `/instructions` command for custom instruction files
- Workspace-local MCP configuration support
- Streaming response retry on server errors
- Alternate screen buffer mode (`--alt-screen` flag)

#### Changes in 0.0.408
**Status**: Release notes not yet published on GitHub releases page.

The GitHub repository (https://github.com/github/copilot-cli/releases) shows releases from 0.0.407 down through 0.0.403, but **version 0.0.408 is not yet visible** on the releases page. This suggests:
1. The NPM package was published before the GitHub release notes
2. This may be a patch release with minimal changes
3. Release notes may be published shortly

**CLI Help Output**: Unable to capture due to permission restrictions in runner environment. The Copilot CLI requires write access to `/home/runner/.copilot/pkg` for package extraction.

</details>

### Breaking Changes

**Status**: Unknown - pending full release notes

Given the rapid release (1 day after 0.0.407) and minor version increment (0.0.407 → 0.0.408), breaking changes are **unlikely**. This appears to be a patch release.

### Impact Assessment

- **Risk Level**: Low-Medium
  - Rapid release suggests possible hotfix
  - Minor version increment indicates limited scope
  - No visible breaking changes documented
- **Affected Features**: Unknown pending release notes
- **Testing Required**: Yes - per warning in `constants.go`, "UPGRADING COPILOT CLI REQUIRES A FULL INTEGRATION TEST RUN TO ENSURE COMPATIBILITY"

### Recommendations

1. **Monitor for Release Notes**: Check https://github.com/github/copilot-cli/releases for version 0.0.408 release notes
2. **Integration Testing**: Run full integration test suite before merging (per constants.go warning)
3. **Complete Build**: Resolve Go 1.25.0 toolchain issue to complete `make recompile` step
4. **CLI Help Comparison**: Once build environment is fixed, capture and compare `copilot --help` and subcommand help outputs (especially `config` and `environment` commands)

### Build Issue

The `make recompile` step failed with:
```
go: downloading go1.25.0 (linux/amd64)
go: download go1.25.0: golang.org/toolchain@v0.0.1-go1.25.0.linux-amd64: 
Get "(proxy.golang.org/redacted) Forbidden

This is a known issue from previous run (#21930621704). The Go 1.25.0 toolchain is not yet available on the Go proxy. This prevents workflow lock file regeneration but does not block the version constant update.

Next Steps

• Monitor for Go 1.25.0 toolchain availability
• Complete make recompile when Go toolchain is available
• Check for 0.0.408 release notes on GitHub
• Run integration tests to validate compatibility
• Capture CLI help outputs for both main and subcommands

Context

• Repository: github/gh-aw
• Workflow Run: §21946532938
• Previous Update Run: §21930621704
• Actor: pelikhan
• Date: 2026-02-12

AI generated by CLI Version Checker

• expires on Feb 14, 2026, 12:31 PM UTC