feat: update agent-ready to support AGENTS.md with CLAUDE.md symlink

[Claude]

The agent-ready plugin was Claude Code-specific. Updated to generate AGENTS.md as the primary documentation file (compatible with any AI coding agent), with CLAUDE.md as a symlink for backward compatibility.

Changes

• SKILL.md: Renamed claude-md mode to agents-md. Updated all references from CLAUDE.md to AGENTS.md. Added symlink creation logic that migrates existing CLAUDE.md files and creates ln -sf AGENTS.md CLAUDE.md. Enhanced audit mode to validate symlink correctness.

• claude-md-template.md: Updated template header to generate AGENTS.md. Added note explaining CLAUDE.md symlink relationship. Template filename unchanged to avoid breaking references.

• README.md: Added "AGENTS.md vs CLAUDE.md" section explaining the approach. Updated modes table to reflect agents-md mode and symlink creation.

• plugin.json & marketplace.json: Bumped version to 1.1.0. Updated descriptions to mention both AGENTS.md and CLAUDE.md symlink. Added "agents-md" keyword.

Result

When users run agent-ready, they get:

• AGENTS.md as the canonical file (works with any agent)
• CLAUDE.md → AGENTS.md symlink (Claude Code compatibility)
• Single source of truth with cross-agent compatibility

Existing CLAUDE.md-only repos are automatically migrated to this structure when the skill runs.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>agent-ready create AGENTS.md</issue_title>
<issue_description>agent-ready should not be specific to just Claude Code. Instead we should bootstrap a repo to support other coding agents as well, specifically those that support AGENTS.md. Symlink CLAUDE.md to AGENTS.md as part of the set up process.</issue_description>

Comments on the Issue (you are @claude[agent] in this section)

• Fixes agent-ready create AGENTS.md #25