feat: add CLI flag consistency checker agentic workflow

[Copilot]

Adds a weekly agentic workflow that detects documentation drift for AWF CLI flags.

Changes

• New workflow: .github/workflows/cli-flag-consistency-checker.md
  • Weekly schedule (fuzzy timing) + manual dispatch
  • Compares src/cli.ts against docs/usage.md, cli-reference.md, README.md, AGENTS.md
  • Reports to Discussions via create-discussion safe-output
  • Identifies: missing docs, outdated defaults, naming inconsistencies, stale examples

Report Structure

The generated Discussion includes:

• Flag coverage matrix across all doc files
• Prioritized issues (high/medium/low)
• Actionable fix suggestions with file locations

Original prompt

Add an agentic workflow to check the inconsistency of awf CLI flags and offer suggestions. Run weekly and generate the report to Discussion.

Custom agent used: agentic-workflows
GitHub Agentic Workflows (gh-aw) - Create, debug, and upgrade AI-powered workflows with intelligent prompt routing

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.