feat(analysis): bold month names for DB-sourced data, regular for external

apps/frontend/src/features/analysis/components/MonthlyVariationTable.tsx

@@ -13,6 +13,7 @@ type CurrencyValues = {
 type MonthRow = {
   month: MonthKey;
   label: string;
+  fromDb: boolean;
   BELO: CurrencyValues;
   BLUE: CurrencyValues;
   BNA: CurrencyValues;
@@ -117,7 +118,12 @@ export function MonthlyVariationTable() {
 
     const monthsMap = new Map<
       MonthKey,
-      { BELO: number | null; BLUE: number | null; BNA: number | null }
+      {
+        BELO: number | null;
+        BLUE: number | null;
+        BNA: number | null;
+        dbTypes: Set<string>;
+      }
     >();
 
     for (const entry of monthlyData) {
@@ -125,10 +131,12 @@ export function MonthlyVariationTable() {
         BELO: null,
         BLUE: null,
         BNA: null,
+        dbTypes: new Set(),
       };
       if (entry.type === "BELO") existing.BELO = entry.buy;
       if (entry.type === "BLUE") existing.BLUE = entry.buy;
       if (entry.type === "BNA") existing.BNA = entry.buy;
+      if (entry.source === "db") existing.dbTypes.add(entry.type);
       monthsMap.set(entry.month, existing);
     }
 
@@ -175,6 +183,7 @@ export function MonthlyVariationTable() {
         return {
           month,
           label: formatMonth(month),
+          fromDb: (current?.dbTypes.size ?? 0) > 0,
           BELO: {
             variation: beloVar,
             prev: prevData?.BELO ?? null,
@@ -223,7 +232,9 @@ export function MonthlyVariationTable() {
             className="rounded-lg border bg-card p-3 text-sm"
           >
             <div className="flex items-center justify-between mb-2">
-              <span className="font-medium">{row.label}</span>
+              <span className={row.fromDb ? "font-semibold" : "font-normal"}>
+                {row.label}
+              </span>
               {row.inflation !== null ? (
                 <span className="text-xs text-muted-foreground tabular-nums inline-flex items-center gap-1">
                   <TrendingUp className="size-3" />
@@ -297,7 +308,11 @@ export function MonthlyVariationTable() {
                 key={row.month}
                 className="border-b last:border-0 hover:bg-muted/30"
               >
-                <td className="px-3 py-2.5 font-medium">{row.label}</td>
+                <td
+                  className={`px-3 py-2.5 ${row.fromDb ? "font-semibold" : "font-normal"}`}
+                >
+                  {row.label}
+                </td>
                 <td className="px-3 py-2.5 text-right">
                   <VariationIndicator
                     variation={row.BELO.variation}

apps/frontend/src/lib/api.ts

@@ -113,6 +113,7 @@ export type MonthlyLast = {
   month: string;
   type: "BELO" | "BLUE" | "BNA";
   buy: number;
+  source: "db" | "external";
 };
 
 export function getMonthlyLast(): Promise<MonthlyLast[]> {