feat(npa): add Undebited Interest Recovery Report, fix note text width

Adds a 10th NPA report tracking memorandum "undebited interest" per IRAC
norms (accrued vs cash-recovered vs balance), wired into Export to Excel
and the NPA mega-menu. Also fixes a narrow-width text wrap on the report's
description note (new .npa-report-note class overriding pg-sub's 560px cap).

src/app/npa/npa-shared.scss

@@ -10,6 +10,10 @@
 // and ../investment/investment-shared.scss (inv-kpis, inv-form-*, inv-toast — reused as-is since
 // they are the same generic "KPI tile / entry form / toast" primitives, not Investment-specific).
 
+.npa-report-note {
+  max-width: none;
+}
+
 .npa-badge {
   display: inline-flex;
   align-items: center;