feat: add shared StatusBadge, SourceTag, AgeIndicator components and format utilities

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/lib/format.ts

@@ -0,0 +1,39 @@
+// Format currency from micros to display string (INR)
+export const formatCurrency = (amountMicros: number, currency = 'INR'): string => {
+    const amount = amountMicros / 1_000_000;
+    return new Intl.NumberFormat('en-IN', { style: 'currency', currency, maximumFractionDigits: 0 }).format(amount);
+};
+
+// Format phone number for display
+export const formatPhone = (phone: { number: string; callingCode: string }): string =>
+    `${phone.callingCode} ${phone.number.replace(/(\d{5})(\d{5})/, '$1 $2')}`;
+
+// Calculate days ago from ISO date string
+export const daysAgoFromNow = (dateStr: string): number => {
+    const diff = Date.now() - new Date(dateStr).getTime();
+    return Math.floor(diff / (1000 * 60 * 60 * 24));
+};
+
+// Get aging bracket from days
+export const getAgeBracket = (days: number): 'fresh' | 'warm' | 'cold' =>
+    days < 2 ? 'fresh' : days <= 5 ? 'warm' : 'cold';
+
+// Format relative age string
+export const formatRelativeAge = (dateStr: string): string => {
+    const days = daysAgoFromNow(dateStr);
+    if (days === 0) return 'Today';
+    if (days === 1) return '1 day ago';
+    return `${days} days ago`;
+};
+
+// Format short date (Mar 15, 2:30 PM)
+export const formatShortDate = (dateStr: string): string =>
+    new Intl.DateTimeFormat('en-IN', { month: 'short', day: 'numeric', hour: 'numeric', minute: '2-digit', hour12: true }).format(new Date(dateStr));
+
+// Get initials from a name
+export const getInitials = (firstName: string, lastName: string): string =>
+    `${firstName[0] || ''}${lastName[0] || ''}`.toUpperCase();
+
+// Format large numbers (1234 -> "1.2K", 1234567 -> "1.2M")
+export const formatCompact = (n: number): string =>
+    new Intl.NumberFormat('en-IN', { notation: 'compact', maximumFractionDigits: 1 }).format(n);