Create attribution report template and parameters

src/lib/constants.ts

@@ -124,6 +124,7 @@ export const REPORT_TYPES = {
   utm: 'utm',
   journey: 'journey',
   revenue: 'revenue',
+  attribution: 'attribution',
 } as const;
 
 export const REPORT_PARAMETERS = {

src/lib/schema.ts

@@ -60,6 +60,7 @@ export const reportTypeParam = z.enum([
   'goals',
   'journey',
   'revenue',
+  'attribution',
 ]);
 
 export const reportParms = {