fix(test): align stage names with consolidated pipeline enum

Followup to 886119c (refactor(sales): consolidate pipeline stages) — the
runtime enum was renamed but a few test fixtures and PDF report templates
still referenced the legacy names, leaving them broken at the type level
(36 tsc errors before this fix).

Renames in this commit:
  visited        -> in_communication (alerts test) / removed (PDF reports)
  signed_eoi_nda -> eoi_signed
  contract       -> contract_signed (interests test) / contract_sent (factory)

Affected files: pipeline-report, revenue-report, makeCreateInterestInput
factory, alerts-engine, pipeline-transitions, interest-scoring.

Verification: tsc clean, 858/858 vitest passing.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/helpers/factories.ts

@@ -635,10 +635,11 @@ export function makeCreateInterestInput(overrides?: {
     | 'open'
     | 'details_sent'
     | 'in_communication'
-    | 'visited'
-    | 'signed_eoi_nda'
+    | 'eoi_sent'
+    | 'eoi_signed'
     | 'deposit_10pct'
-    | 'contract'
+    | 'contract_sent'
+    | 'contract_signed'
     | 'completed';
 }) {
   return {