v1.2.0

Minor Changes

• Add agent-friendly non-interactive mode and API key UX improvements
  • Add --yes/-y flag for fully unattended planning workflows (Claude Code, Cursor, Codex)
  • Auto-detect non-interactive terminals via TTY detection
  • All prompts return sensible defaults when non-interactive
  • Add planr config remove-key command to delete stored API keys
  • Show clear multi-line guidance when API key is not configured
  • Detect existing API keys (env var, OS keychain, encrypted file) during init
  • Replace magic numbers with named CHECKLIST constants
  • Fix TOCTOU race condition in checklist reads