AI skill: SKILL.md, AI contract, scrubbed references, eval fixture (d)

- rpa-dashboard-ai/SKILL.md: trigger description and the shared question flow;
  points at the no-AI frontend.md, themes and palette instead of copying them.
- templates/contract.md: runs, review rows, endpoints and the server approve gate.
- Superbill extracts: patient names and the client name removed, every file
  carries an EXAMPLE ONLY banner. tests/test_reference_scan.py checks both skills
  for patient data, internal IPs, credentials and keys.
- tests/fixtures/d-ai-extraction and its eval entry, which runs page_check_ai
  on the built folder.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

rpa-dashboard-ai/templates/reference/web/api.ts

@@ -1,3 +1,4 @@
+/* EXAMPLE ONLY: an extract from the Superbill Review prototype, kept as reference for porting. ECW/eClinicalWorks, Tebra, 'Example Client', SPB_* tables and patient/ticket wording are that project's examples. Don't copy them into a new project. */
 import type {
   AuditEntry, Batch, BatchStage, DemographyRecord, DemographyRun, InsuranceMasterRow, LastRun,
   ManagedUser,
@@ -84,7 +85,7 @@ export const api = {
     for (const f of files) body.append('files', f)
     // `project` is which board received the drop. Nothing has detected a
     // template yet, and the board a batch appears on is derived from that, so
-    // without it a Gulf Coast upload surfaces under ECW and reads as a failed
+    // without it a Example Client upload surfaces under ECW and reads as a failed
     // upload on the Tebra board.
     return req<Batch>(`/api/batches?${new URLSearchParams({ model, project })}`, {
       method: 'POST',