chore(plans): mark samlify-esm-interop done (PR #183)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LFyA5poHwrhAktrnsKrUiQ

Author: themightychris

plans/samlify-esm-interop.md

@@ -4,7 +4,7 @@ depends: [saml-login-return-path]
 specs:
   - specs/api/saml.md
 issues: []
-pr: null
+pr: 183
 ---
 
 # Plan: samlify ESM/CJS interop in the production build