feat: add --inspect-cert and --verbose flags to login command. Closes #353.

[fdcastel]

Adds --print-ssh-key and -v/--verbose flags to opkssh login, allowing users to inspect generated SSH certificate details directly during login.

Closes #353

Changes

New flags on opkssh login

• --inspect-cert: Prints SSH certificate details (certificate metadata, PKToken structure, signature info, and token metadata) using the same inspection logic as opkssh inspect.
• -v/--verbose: Shorthand that enables --print-ssh-key. Provides a convenient way to get detailed output during login.

Combined and unified formatting

• --print-id-token and --inspect-cert both write to the same output writer (l.out()), making them consistent and testable.
• Updated inspect command and --print-ssh-key JSON formatting to use 2-space indentation, matching --print-id-token output. This ensures consistent formatting across all three: --print-id-token, --print-ssh-key, and opkssh inspect.

Code reuse

• --print-ssh-key in the login command reuses InspectCmd from the inspect command, avoiding code duplication.

Files changed

• commands/login.go: Added PrintSshKeyArg field, updated NewLogin, added SSH key inspection in login(), unified --print-id-token to use l.out().
• commands/login_test.go: Added test case for PrintSshKeyArg, updated TestNewLogin for new parameter.
• commands/inspect.go: Changed JSON indentation from 2-space to 4-space to match --print-id-token.
• commands/inspect_test.go: Updated expected output for 4-space indentation.
• main.go: Added --print-ssh-key, -v/--verbose flag definitions and wiring.

Example usage

# Print SSH certificate details during login
opkssh login --print-ssh-key

# Verbose mode (equivalent to --print-ssh-key)
opkssh login -v

# Combine with existing flags
opkssh login --print-id-token --print-ssh-key

[EthanHeilman]

Will merge after windows PR is merged

[Copilot]

Pull request overview

This PR extends the opkssh login command with additional output/inspection capabilities during login, and updates CLI/test wiring to expose and validate the new flags.

Changes:

• Adds a new login flag to print/inspect the generated SSH certificate details, plus a -v/--verbose shorthand.
• Routes --print-id-token output through the command’s output writer and invokes InspectCmd during login when enabled.
• Adds CLI help/output tests for the new flags and introduces a repository .editorconfig.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
main.go	Adds new login flags and wires them into commands.NewLogin, with --verbose enabling certificate inspection.
main_test.go	Adds assertions that login --help includes the new flags.
commands/login.go	Adds an inspection flag to LoginCmd, routes --print-id-token output via l.out(), and runs InspectCmd during login.
commands/login_test.go	Adds a happy-path test case covering the new inspection behavior and updates NewLogin construction.
.editorconfig	Adds EditorConfig settings (tabs for Go, 2-space indentation for JSON/MD/YAML/SH).

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[EthanHeilman]

LGTM