Add Luxinnovation events application-form domain skill

[aman2k4]

Learned while filling a Fit 4 Start application on events.luxinnovation.lu.

The non-obvious trap: setting field values with the React-style synthetic pattern (...value.set + dispatch input/change) makes fields look filled but the framework drops them on Save — sections reload empty. The fix is compositor-level typing via Input.insertText plus verifying persistence by reload, not by reading the just-written DOM.

Also documents: per-section Save + nav warning triangles, searchable vs enum custom dropdowns (coordinate-click the rendered option), hidden input[type=file] upload via DOM.setFileInputFiles, conditional fields that appear after radio/count choices, and the stable draft-submission reattach URL.

🤖 Generated with Claude Code

---

Summary by cubic

Adds a new domain skill documenting how to reliably fill application forms on events.luxinnovation.lu. Covers the synthetic-event value-drop trap and shows how to type via CDP, plus key behaviors for saves, dropdowns, uploads, and draft recovery.

• New Features
  • Explains using CDP Input.insertText instead of synthetic value setters, and verifying by reload.
  • Notes per-section Save behavior and nav warning triangles.
  • Details handling of custom dropdowns (searchable and short enums), including coordinate-click and virtualized lists.
  • Shows file upload via DOM.setFileInputFiles and waiting for completion messages.
  • Calls out conditional fields after radio/count choices and the stable draft reattach URL.

^{Written for commit 07694a1. Summary will update on new commits.}

[browser-harness-review]

✅ Skill review passed

Reviewed 1 file(s) — no findings.

[cubic-dev-ai]

No issues found across 1 file

_{Re-trigger cubic}