Fix form keyboard issues and sticky footers in agent screens

src/modules/services/utils/geo.ts

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+import { Linking, Platform } from 'react-native';
+
+/**
+ * Calculate distance between two coordinates using the Haversine formula.
+ * Returns distance in kilometers.
+ */
+export const haversineDistance = (
+  lat1: number,
+  lng1: number,
+  lat2: number,
+  lng2: number,
+): number => {
+  const R = 6371; // Earth's radius in km
+  const dLat = toRad(lat2 - lat1);
+  const dLng = toRad(lng2 - lng1);
+
+  const a =
+    Math.sin(dLat / 2) * Math.sin(dLat / 2) +
+    Math.cos(toRad(lat1)) *
+      Math.cos(toRad(lat2)) *
+      Math.sin(dLng / 2) *
+      Math.sin(dLng / 2);
+
+  const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
+  return R * c;
+};
+
+const toRad = (deg: number): number => deg * (Math.PI / 180);
+
+/**
+ * Format a distance in km to a human-readable string.
+ */
+export const formatDistance = (km: number): string => {
+  if (km < 1) {
+    return `${Math.round(km * 1000)} m`;
+  }
+  if (km < 10) {
+    return `${km.toFixed(1)} km`;
+  }
+  return `${Math.round(km)} km`;
+};
+
+/**
+ * Open external navigation (Google Maps) to the given destination.
+ */
+export const openDirections = (lat: number, lng: number): void => {
+  const url = `https://www.google.com/maps/dir/?api=1&destination=${lat},${lng}`;
+  Linking.openURL(url).catch(() => {
+    // Fallback for devices without Google Maps
+    const fallback =
+      Platform.OS === 'ios'
+        ? `http://maps.apple.com/?daddr=${lat},${lng}`
+        : url;
+    Linking.openURL(fallback);
+  });
+};
+
+/**
+ * Open the phone dialer with the given number.
+ */
+export const callBranch = (phone: string): void => {
+  const cleaned = phone.replace(/\s/g, '');
+  Linking.openURL(`tel:${cleaned}`);
+};

src/modules/services/utils/serviceStatus.ts

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+import type { ServiceStatus } from '../../../types/app';
+
+export const getServiceStatusTone = (status: ServiceStatus) => {
+  switch (status) {
+    case 'resolved':
+      return '#35D6A3';
+    case 'in-progress':
+      return '#59C6FF';
+    default:
+      return '#F6B26B';
+  }
+};