refactor(reports): drop txns_per_month and Count card

Group strip is now Sum/Avg/Min/Max/Cadence-Frequency; count already
shown in the accordion header, per-month rate derivable from monthly
buckets.

src/Reports/ReportViewer.tsx

@@ -162,7 +162,6 @@ export function ReportViewer({ id, version, fields, onClose, onRegenerated }: Re
           max: g.metrics.max,
           cadence: g.metrics.cadence,
           frequency: g.metrics.frequency,
-          txnsPerMonth: g.metrics.txnsPerMonth,
         },
       })),
     [periodGroups],

src/Reports/types.ts

@@ -12,7 +12,6 @@ export interface PeriodMetricsVM {
   lastDate: string | null;
   cadence: number | null;
   frequency: number | null;
-  txnsPerMonth: number | null;
 }
 
 export interface ReportPeriodGroup {
@@ -109,7 +108,6 @@ export function buildPeriodGroups(buckets: any[], filter: SliceFilter): ReportPe
     sources: number;
     apiCadence: number | null;
     apiFrequency: number | null;
-    apiTxnsPerMonth: number | null;
   }
   const byPeriod = new Map<string, Acc>();
   const seenTxnIds = new Set<string>();
@@ -135,13 +133,11 @@ export function buildPeriodGroups(buckets: any[], filter: SliceFilter): ReportPe
             lastDate: null,
             cadence: null,
             frequency: null,
-            txnsPerMonth: null,
           },
           txns: [],
           sources: 0,
           apiCadence: num(m.cadence),
           apiFrequency: num(m.frequency),
-          apiTxnsPerMonth: num(m.txns_per_month),
         };
         byPeriod.set(period.period_id, acc);
       }
@@ -192,11 +188,9 @@ export function buildPeriodGroups(buckets: any[], filter: SliceFilter): ReportPe
           vm.cadence = null;
           vm.frequency = null;
         }
-        vm.txnsPerMonth = null;
       } else {
         vm.cadence = acc.apiCadence;
         vm.frequency = acc.apiFrequency;
-        vm.txnsPerMonth = acc.apiTxnsPerMonth;
       }
       return { key, metrics: vm, txns: acc.txns, currency };
     })

src/common/components/TransactionList.tsx

@@ -48,7 +48,6 @@ function txnFallbackMetrics(items: ExpenseItem[]): ListGroupMetrics {
     max: t.max,
     cadence: t.cadenceDays,
     frequency: t.frequency,
-    txnsPerMonth: null,
   };
 }
 
@@ -67,18 +66,8 @@ function GroupMetrics({
     { label: "Avg", value: m.avg == null ? "—" : formatCurrency(m.avg, currency) },
     { label: "Min", value: m.min == null ? "—" : formatCurrency(m.min, currency) },
     { label: "Max", value: m.max == null ? "—" : formatCurrency(m.max, currency) },
-    {
-      label: "Count",
-      value:
-        typeof m.count === "number"
-          ? m.count.toLocaleString("en-IN")
-          : String(items.length),
-    },
     cadenceRow(m.cadence, m.frequency),
   ];
-  if (m.txnsPerMonth != null) {
-    rows.push({ label: "Per Month", value: Number.isInteger(m.txnsPerMonth) ? String(m.txnsPerMonth) : m.txnsPerMonth.toFixed(2) });
-  }
   return (
     <Box sx={{ display: "flex", gap: 2, flexWrap: "wrap", width: "100%" }}>
       {rows.map((row) => (

src/common/utils/transactions.ts

@@ -49,7 +49,6 @@ export interface ListGroupMetrics {
   max: number | null;
   cadence: number | null;
   frequency: number | null;
-  txnsPerMonth: number | null;
 }
 
 export interface ListPeriodGroup extends PeriodGroup {