audit: verify investigations.ts against reference documents

- PharMetrics: corrected from "Interactive Platform" to "Switching Dashboard"
  to align with references (PharMetrics is the switching algorithm project);
  updated methodology to match secondary ref's dashboard description
- All other investigations (switching algorithm, Blueteq, CD monitoring,
  Sankey tool) verified against CV and secondary reference — no changes needed

src/data/investigations.ts

@@ -3,17 +3,17 @@ import type { Investigation } from '@/types/pmr'
 export const investigations: Investigation[] = [
   {
     id: 'inv-pharmetrics',
-    name: 'PharMetrics Interactive Platform',
+    name: 'PharMetrics Switching Dashboard',
-    requestedYear: 2024,
+    requestedYear: 2025,
-    reportedYear: 2024,
+    reportedYear: 2025,
     status: 'Live',
     resultSummary: 'Live at medicines.charlwood.xyz',
     requestingClinician: 'A. Charlwood',
-    methodology: 'Real-time medicines expenditure dashboard providing actionable analytics for NHS decision-makers. Built with Power BI and SQL, tracking expenditure across the £220M prescribing budget.',
+    methodology: 'Dashboard tracking patient-level switching data from the PharMetrics algorithm, monitoring which patients have been switched with quality metrics providing points for each intervention. Enables practices to monitor their own progress against the switching scheme.',
     results: [
-      'Real-time tracking of medicines expenditure',
+      'Patient-level switching progress tracking',
-      'Actionable analytics for budget holders',
+      'Practice-level self-serve monitoring',
-      'Self-serve model for wider team',
+      'Quality metrics and points-based tracking per patient intervention',
     ],
     techStack: ['Power BI', 'SQL', 'DAX'],
     externalUrl: 'https://medicines.charlwood.xyz',