feat(heatmap): add range selection component and update range keys for activity metrics

frontend/src/components/git/ForgejoHeatmap.tsx

@@ -3,6 +3,13 @@
 import { useMemo, useState } from "react";
 import { Activity, LayoutGrid } from "lucide-react";
 import type { ForgejoHeatmapDay, ForgejoLastPush } from "@/lib/api-forgejo";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
 
 interface ForgejoHeatmapProps {
   days: ForgejoHeatmapDay[];
@@ -30,7 +37,7 @@ const HRIGHT  = 14;
 const HVH     = LVH;
 
 // ── Types & data ───────────────────────────────────────────────────────────
-type RangeKey = "7d" | "30d" | "3m" | "6m" | "1y";
+type RangeKey = "7d" | "14d" | "30d" | "90d" | "6m" | "1y";
 type ActivityDatum = {
   date: string;
   count: number;
@@ -38,16 +45,17 @@ type ActivityDatum = {
 };
 
 const RANGE_DAYS: Record<RangeKey, number> = {
-  "7d": 7, "30d": 30, "3m": 91, "6m": 183, "1y": 365,
+  "7d": 7, "14d": 14, "30d": 30, "90d": 90, "6m": 183, "1y": 365,
 };
 const RANGE_SUMMARY: Record<RangeKey, string> = {
   "7d": "7 days",
+  "14d": "14 days",
   "30d": "30 days",
-  "3m": "3 months",
+  "90d": "90 days",
   "6m": "6 months",
   "1y": "1 year",
 };
-const RANGE_LABELS: RangeKey[] = ["7d", "30d", "3m", "6m", "1y"];
+const RANGE_LABELS: RangeKey[] = ["7d", "14d", "30d", "90d", "6m", "1y"];
 const MONTHS = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];
 
 // ── Colors ─────────────────────────────────────────────────────────────────
@@ -111,6 +119,53 @@ function heatFill(count: number, maxCount: number): string {
   return `rgba(16,185,129,${alpha.toFixed(2)})`;
 }
 
+function RangeSelect({
+  value,
+  onValueChange,
+  accent,
+  ariaLabel,
+}: {
+  value: RangeKey;
+  onValueChange: (value: RangeKey) => void;
+  accent: "violet" | "green";
+  ariaLabel: string;
+}) {
+  const isViolet = accent === "violet";
+  return (
+    <Select value={value} onValueChange={(next) => onValueChange(next as RangeKey)}>
+      <SelectTrigger
+        aria-label={ariaLabel}
+        className="h-8 w-[86px] rounded-lg px-2.5 text-xs font-semibold shadow-none focus:ring-offset-0"
+        style={
+          isViolet
+            ? {
+                background: "rgba(139,92,246,0.12)",
+                borderColor: "rgba(139,92,246,0.34)",
+                color: VIOLET,
+              }
+            : {
+                background: "rgba(16,185,129,0.12)",
+                borderColor: "rgba(16,185,129,0.34)",
+                color: GREEN,
+              }
+        }
+      >
+        <SelectValue />
+      </SelectTrigger>
+      <SelectContent align="end" className="min-w-[8rem]">
+        {RANGE_LABELS.map((range) => (
+          <SelectItem key={range} value={range}>
+            <span className="flex w-full items-center justify-between gap-4">
+              <span>{range}</span>
+              <span className="text-xs text-muted">{RANGE_SUMMARY[range]}</span>
+            </span>
+          </SelectItem>
+        ))}
+      </SelectContent>
+    </Select>
+  );
+}
+
 // ── Line chart sub-component ───────────────────────────────────────────────
 function LineChart({ days, range, onRangeChange, lastPush }: {
   days: ForgejoHeatmapDay[];
@@ -206,18 +261,12 @@ function LineChart({ days, range, onRangeChange, lastPush }: {
             {hoveredPoint ? `on ${displayedLabel}` : `in ${displayedLabel}`}
           </span>
         </div>
-        <div className="flex gap-1">
-          {RANGE_LABELS.map(r => (
-            <button
-              key={r} type="button"
-              onClick={() => onRangeChange(r)}
-              className="rounded px-2 py-0.5 text-xs font-medium transition-all"
-              style={r === range
-                ? { background:"rgba(139,92,246,0.22)", color:VIOLET, border:"1px solid rgba(139,92,246,0.40)" }
-                : { background:"transparent", color:W40, border:"1px solid transparent" }}
-            >{r}</button>
-          ))}
-        </div>
+        <RangeSelect
+          value={range}
+          onValueChange={onRangeChange}
+          accent="violet"
+          ariaLabel="Select Git Activity range"
+        />
       </div>
 
       {/* SVG */}
@@ -389,7 +438,7 @@ function HeatmapGrid({ days, range, onRangeChange }: {
 
     const gap = 3;
     const availableWidth = LVW - HLEFT - HRIGHT;
-    const maxCell = range === "3m" ? 14 : range === "6m" ? 12 : 8;
+    const maxCell = range === "90d" ? 14 : range === "6m" ? 12 : 8;
     const cell = Math.max(
       6,
       Math.min(maxCell, Math.floor((availableWidth - gap * (weekCount - 1)) / weekCount)),
@@ -430,17 +479,12 @@ function HeatmapGrid({ days, range, onRangeChange }: {
             {hoveredDay ? `on ${displayedLabel}` : `in ${displayedLabel}`}
           </span>
         </div>
-        <div className="flex gap-1">
-          {RANGE_LABELS.map(r => (
-            <button key={r} type="button" onClick={() => onRangeChange(r)}
-              className="rounded px-2 py-0.5 text-xs font-medium transition-all"
-              style={r === range
-                ? { background:"rgba(16,185,129,0.18)", color:"rgba(16,185,129,1)", border:"1px solid rgba(16,185,129,0.40)" }
-                : { background:"transparent", color:W40, border:"1px solid transparent" }}>
-              {r}
-            </button>
-          ))}
-        </div>
+        <RangeSelect
+          value={range}
+          onValueChange={onRangeChange}
+          accent="green"
+          ariaLabel="Select Activity Heatmap range"
+        />
       </div>
 
       {/* SVG */}
@@ -543,8 +587,8 @@ export function ForgejoHeatmap({
   lastPush       = null,
   isLoading      = false,
 }: ForgejoHeatmapProps) {
-  const [lineRange, setLineRange] = useState<RangeKey>("7d");
-  const [heatRange, setHeatRange] = useState<RangeKey>("7d");
+  const [lineRange, setLineRange] = useState<RangeKey>("14d");
+  const [heatRange, setHeatRange] = useState<RangeKey>("14d");
 
   if (isLoading) {
     return (

frontend/src/components/git/ForgejoIssueMetricCards.tsx

@@ -43,7 +43,8 @@ const formatCount = (value: number | null | undefined): string =>
 
 const parseDate = (value: string | null | undefined): Date | null => {
   if (!value) return null;
-  const date = new Date(value);
+  const hasTimezone = /(?:Z|[+-]\d{2}:?\d{2})$/i.test(value);
+  const date = new Date(hasTimezone ? value : `${value}Z`);
   return Number.isNaN(date.getTime()) ? null : date;
 };
 
@@ -183,6 +184,7 @@ function MetricSkeleton() {
 // ── Card renderer ──────────────────────────────────────────────────────────
 function MetricCardLink({ card }: { card: MetricCard }) {
   const Icon = card.icon;
+  const valueParts = card.value.split(/(\d[\d,]*)/g);
 
   return (
     <Link
@@ -197,8 +199,21 @@ function MetricCardLink({ card }: { card: MetricCard }) {
           <p className="text-xs font-semibold uppercase tracking-[0.14em] text-muted">
             {card.title}
           </p>
-          <p className={cn("mt-3 break-words font-heading text-3xl font-semibold", toneValueClasses[card.tone])}>
-            {card.value}
+          <p
+            className={cn(
+              "mt-3 break-words font-heading text-3xl font-semibold",
+              toneValueClasses[card.tone],
+            )}
+          >
+            {valueParts.map((part, index) =>
+              /^\d[\d,]*$/.test(part) ? (
+                <span key={`${part}-${index}`} className="font-numeric">
+                  {part}
+                </span>
+              ) : (
+                part
+              ),
+            )}
           </p>
         </div>
         <div