chore: add AGENTS.md symlink to CLAUDE.md

[facundofarias]

What

Adds AGENTS.md as a relative symlink to CLAUDE.md.

Why

AGENTS.md is the vendor-neutral standard read by Codex, Cursor, Zed, and
other agent tooling. Symlinking it to CLAUDE.md gives those tools the same
instructions Claude Code already uses, with a single source of truth and zero
duplicated content.

Notes

• Relative symlink (AGENTS.md -> CLAUDE.md), portable across clones.
• No content changes; CLAUDE.md remains canonical.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Updated the agent guidance reference to point to the centralized CLAUDE.md instructions.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 5b29d099-3cfb-4bc5-bd98-07daa01fac83

📥 Commits

Reviewing files that changed from the base of the PR and between fc465cd and 29462b2.

📒 Files selected for processing (1)

• AGENTS.md

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Walkthrough

AGENTS.md now contains a reference to CLAUDE.md, reflecting that it serves as a symbolic link target rather than standalone instructions.

Changes

Agent instructions

Layer / File(s)	Summary
Update agent instruction reference AGENTS.md	AGENTS.md now references CLAUDE.md as its effective instruction source.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and accurately summarizes the main change: adding AGENTS.md as a symlink to CLAUDE.md.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/add-agents-md-symlink

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