Fix lint-go failure from perfsprint violations in CLI and permissions validator

[Copilot]

Bug Fix

What was the bug?

The lint-go job failed in Actions job 75165548320 due to perfsprint violations: one unnecessary fmt.Sprintf and two static-string fmt.Errorf calls.

How did you fix it?

• CLI formatting cleanup
  • Replaced formatted string construction with direct concatenation in pkg/cli/add_interactive_engine.go.
• Static error construction cleanup
  • Replaced static-message fmt.Errorf(...) with errors.New(...) in pkg/workflow/permissions_compiler_validator.go.
  • Added errors import for the validator.

// before
fmt.Fprintln(os.Stderr, console.FormatInfoMessage(fmt.Sprintf("Using coding agent: %s", c.EngineOverride)))
return fmt.Errorf("engine.auth.type: github-oidc requires permissions.id-token: write")

// after
fmt.Fprintln(os.Stderr, console.FormatInfoMessage("Using coding agent: "+c.EngineOverride))
return errors.New("engine.auth.type: github-oidc requires permissions.id-token: write")

Testing

• Scoped to behavior-preserving lint-driven refactors only; no functional logic changes were introduced.

[Copilot]

Pull request overview

This PR fixes lint-go failures caused by perfsprint violations by removing unnecessary string formatting calls while keeping behavior the same.

Changes:

• Replaced an unnecessary fmt.Sprintf with direct string concatenation in the interactive CLI engine selection flow.
• Replaced static-message fmt.Errorf(...) calls with errors.New(...) in the permissions compiler validator (and added the errors import).

Show a summary per file

File	Description
pkg/workflow/permissions_compiler_validator.go	Uses errors.New for static error strings to satisfy perfsprint and keeps existing validator behavior.
pkg/cli/add_interactive_engine.go	Removes an unnecessary fmt.Sprintf when printing the selected/overridden engine message.

Copilot's findings

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• Files reviewed: 2/2 changed files
• Comments generated: 1