Phase 3.4: Code review and documentation

[omattsson]

Overview

Final review and documentation before v1.0.

Tasks

• Code quality review: error handling consistency, no secrets in logs
• Security audit: token file permissions, no credential leakage
• UX review: helpful error messages, consistent flag naming, help text for every command
• README.md with:
  • Installation instructions (binary download, go install, brew)
  • Quick start guide
  • Full command reference
  • Configuration guide (contexts, auth methods)
  • Scripting examples
• CLAUDE.md for the CLI module (patterns, structure, conventions)
• Man page generation via Cobra (optional)

Acceptance Criteria

• All review feedback addressed
• README covers installation, quick start, and full command reference
• stackctl --help and all subcommand --help are clear and complete

Depends On

• Phase 3.1: Bulk operations, git, and cluster commands #7, Phase 3.2: CI/CD, cross-compilation, and Makefile #8, Phase 3.3: Integration tests and full workflow validation #9