Fix map recenter (root cause), login logo/theming, policy pricing display

- ROOT CAUSE: MapLibre Camera re-applies its last setCamera() stop on every
  re-render, so a search (setZones) snapped the map back to the last programmatic
  target. Memoize the Camera + UserLocation elements so search re-renders never
  touch them; only the marker ShapeSource updates. (Confirmed via [CAM] trace.)
- Login: brain-car logo + full theming so text is readable in light/dark
- Meter policies: negative Rate is a sentinel (RateType No Parking=-1 / Free=-3),
  not a price; show DisplayString + colored type dot, real $/hr only when positive.
  Fix zone rate "$ 4.00" formatting.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

app/src/screens/LoginScreen.tsx

@@ -1,18 +1,20 @@
 import React, { useState } from 'react';
 import {
   ActivityIndicator,
+  Image,
   KeyboardAvoidingView,
   Platform,
   StyleSheet,
   Text,
   TextInput,
   TouchableOpacity,
-  View,
 } from 'react-native';
 import { useAuth } from '@/auth/AuthContext';
+import { useTheme } from '@/theme/ThemeContext';
 
 export function LoginScreen() {
   const { login, error } = useAuth();
+  const { colors } = useTheme();
   const [phone, setPhone] = useState('');
   const [password, setPassword] = useState('');
   const [busy, setBusy] = useState(false);
@@ -30,23 +32,32 @@ export function LoginScreen() {
 
   return (
     <KeyboardAvoidingView
-      style={styles.container}
+      style={[styles.container, { backgroundColor: colors.bg }]}
       behavior={Platform.OS === 'ios' ? 'padding' : undefined}
     >
-      <Text style={styles.title}>BigBrainParking</Text>
-      <Text style={styles.subtitle}>Sign in with your phone number</Text>
+      <Image
+        source={require('../../assets/icon.png')}
+        style={styles.logo}
+        resizeMode="contain"
+      />
+      <Text style={[styles.title, { color: colors.text }]}>BigBrainParking</Text>
+      <Text style={[styles.subtitle, { color: colors.subtext }]}>
+        Sign in with your phone number
+      </Text>
 
       <TextInput
-        style={styles.input}
+        style={[styles.input, { color: colors.text, borderColor: colors.border, backgroundColor: colors.card }]}
         placeholder="Phone number"
+        placeholderTextColor={colors.subtext}
         keyboardType="phone-pad"
         autoComplete="tel"
         value={phone}
         onChangeText={setPhone}
       />
       <TextInput
-        style={styles.input}
+        style={[styles.input, { color: colors.text, borderColor: colors.border, backgroundColor: colors.card }]}
         placeholder="Password"
+        placeholderTextColor={colors.subtext}
         secureTextEntry
         value={password}
         onChangeText={setPassword}
@@ -55,7 +66,7 @@ export function LoginScreen() {
       {error ? <Text style={styles.error}>{error}</Text> : null}
 
       <TouchableOpacity
-        style={[styles.button, busy && styles.buttonDisabled]}
+        style={[styles.button, { backgroundColor: colors.primary }, busy && styles.buttonDisabled]}
         disabled={busy}
         onPress={onSubmit}
       >
@@ -66,10 +77,9 @@ export function LoginScreen() {
         )}
       </TouchableOpacity>
 
-      <View style={{ height: 12 }} />
-      <Text style={styles.hint}>
-        Forgot your password? Use the official app or a reset SMS — this build reuses
-        the same account.
+      <Text style={[styles.hint, { color: colors.subtext }]}>
+        Forgot your password? Reset it via the official app — this build reuses the same
+        account.
       </Text>
     </KeyboardAvoidingView>
   );
@@ -77,24 +87,19 @@ export function LoginScreen() {
 
 const styles = StyleSheet.create({
   container: { flex: 1, padding: 24, justifyContent: 'center' },
-  title: { fontSize: 32, fontWeight: '700', textAlign: 'center' },
-  subtitle: { fontSize: 15, color: '#666', textAlign: 'center', marginBottom: 24 },
+  logo: { width: 112, height: 112, alignSelf: 'center', marginBottom: 12, borderRadius: 24 },
+  title: { fontSize: 32, fontWeight: '800', textAlign: 'center' },
+  subtitle: { fontSize: 15, textAlign: 'center', marginBottom: 24 },
   input: {
     borderWidth: 1,
-    borderColor: '#ccc',
     borderRadius: 10,
     padding: 14,
     fontSize: 16,
     marginBottom: 12,
   },
-  error: { color: '#c0392b', marginBottom: 12 },
-  button: {
-    backgroundColor: '#1e6f5c',
-    borderRadius: 10,
-    padding: 16,
-    alignItems: 'center',
-  },
+  error: { color: '#e0574a', marginBottom: 12, fontWeight: '600', textAlign: 'center' },
+  button: { borderRadius: 10, padding: 16, alignItems: 'center' },
   buttonDisabled: { opacity: 0.6 },
-  buttonText: { color: '#fff', fontWeight: '600', fontSize: 16 },
-  hint: { color: '#888', fontSize: 12, textAlign: 'center' },
+  buttonText: { color: '#fff', fontWeight: '700', fontSize: 16 },
+  hint: { fontSize: 12, textAlign: 'center', marginTop: 16 },
 });

app/src/screens/MapScreen.tsx

@@ -178,6 +178,29 @@ export function MapScreen() {
     }
   };
 
+  // MapLibre's Camera re-applies its last imperative setCamera() stop whenever it
+  // re-renders — so a search re-render (setZones) would snap the map back to the
+  // last programmatic target. Memoize these elements so search re-renders never
+  // touch them; only the marker ShapeSource below updates.
+  const cameraEl = useMemo(() => <Camera ref={cameraRef} />, []);
+  const userLocationEl = useMemo(
+    () => (
+      <UserLocation
+        visible
+        renderMode="normal"
+        onUpdate={(loc: any) => {
+          if (loc?.coords) {
+            nativeFix.current = {
+              latitude: loc.coords.latitude,
+              longitude: loc.coords.longitude,
+            };
+          }
+        }}
+      />
+    ),
+    [],
+  );
+
   return (
     <View style={styles.container}>
       <MapView
@@ -198,25 +221,8 @@ export function MapScreen() {
           )
         }
       >
-        {/* Uncontrolled camera; we position it imperatively (once on load, then
-            only on explicit user actions) so re-renders never move the map. */}
-        <Camera ref={cameraRef} />
-
-        {/* renderMode="normal" draws the dot in the JS layer and does NOT engage
-            the native location component, which was tracking the camera back to
-            the user on re-render. */}
-        <UserLocation
-          visible
-          renderMode="normal"
-          onUpdate={(loc: any) => {
-            if (loc?.coords) {
-              nativeFix.current = {
-                latitude: loc.coords.latitude,
-                longitude: loc.coords.longitude,
-              };
-            }
-          }}
-        />
+        {cameraEl}
+        {userLocationEl}
 
         <ShapeSource id="meters" shape={meterFeatures} onPress={onPinPress}>
           <CircleLayer

app/src/screens/MeterDetailScreen.tsx

@@ -16,22 +16,27 @@ function fmtMaxTime(m?: number): string {
   return `${m} min`;
 }
 
-/** Zone rate comes as a string that sometimes already includes a '$'. */
+/** Zone rate comes as a string that sometimes already includes a '$' and spaces. */
 function fmtRate(r?: string): string | undefined {
   if (r == null) return undefined;
-  return '$' + String(r).replace(/^\$+/, '');
+  return '$' + String(r).replace(/^\$\s*/, '').trim();
 }
 
-function policyLine(p: SpacePolicy): { title: string; sub: string } {
+/**
+ * Policies are time-of-day windows. A NEGATIVE `Rate` is a sentinel, not a price:
+ * the meaning is in `RateType` (e.g. "No Parking", "Free"); only a positive Rate
+ * is a real $/hr charge.
+ */
+function policyMeta(p: SpacePolicy): { title: string; rate?: string; color?: string } {
+  const rt = (p.RateType ?? '').toLowerCase();
+  const color = rt.includes('no parking')
+    ? '#c0392b'
+    : rt.includes('free')
+      ? '#2e7d32'
+      : undefined;
   const title = p.DisplayString || p.MessageHeader || p.RateType || 'Rate policy';
-  const parts: string[] = [];
-  if (p.StartTimeDisplay && p.EndTimeDisplay) {
-    parts.push(`${p.StartTimeDisplay}–${p.EndTimeDisplay}`);
-  }
-  // Negative/zero rates are sentinels ("no charge" / "n/a") — only show real ones.
-  if (typeof p.Rate === 'number' && p.Rate > 0) parts.push(`$${p.Rate}/hr`);
-  if (p.MaxTime != null) parts.push(`${fmtMaxTime(p.MaxTime)} max`);
-  return { title, sub: parts.join(' · ') };
+  const rate = typeof p.Rate === 'number' && p.Rate > 0 ? `$${p.Rate}/hr` : undefined;
+  return { title, rate, color };
 }
 
 export function MeterDetailScreen() {
@@ -86,13 +91,18 @@ export function MeterDetailScreen() {
       {firstSpace?.Policies?.length ? (
         <View style={[styles.card, { backgroundColor: colors.card }]}>
           <Text style={[styles.cardTitle, { color: colors.text }]}>Rate policies</Text>
-          {firstSpace.Policies.slice(0, 8).map((p, i) => {
-            const { title, sub } = policyLine(p);
+          {firstSpace.Policies.slice(0, 10).map((p, i) => {
+            const { title, rate, color } = policyMeta(p);
             return (
               <View key={i} style={styles.policyRow}>
-                <Text style={[styles.policyTitle, { color: colors.text }]}>{title}</Text>
-                {sub ? (
-                  <Text style={[styles.policySub, { color: colors.subtext }]}>{sub}</Text>
+                <View
+                  style={[styles.policyDot, { backgroundColor: color ?? colors.primary }]}
+                />
+                <Text style={[styles.policyTitle, { color: colors.text }]} numberOfLines={2}>
+                  {title}
+                </Text>
+                {rate ? (
+                  <Text style={[styles.policyRate, { color: colors.subtext }]}>{rate}</Text>
                 ) : null}
               </View>
             );
@@ -134,9 +144,10 @@ const styles = StyleSheet.create({
   fieldValue: { fontSize: 16, fontWeight: '600', marginTop: 2 },
   card: { borderRadius: 10, padding: 14, marginTop: 16 },
   cardTitle: { fontWeight: '700', marginBottom: 8, fontSize: 15 },
-  policyRow: { marginBottom: 8 },
-  policyTitle: { fontSize: 14, fontWeight: '600' },
-  policySub: { fontSize: 12, marginTop: 1 },
+  policyRow: { flexDirection: 'row', alignItems: 'center', gap: 8, marginBottom: 10 },
+  policyDot: { width: 9, height: 9, borderRadius: 5 },
+  policyTitle: { fontSize: 14, fontWeight: '600', flex: 1 },
+  policyRate: { fontSize: 13, fontWeight: '600' },
   button: { marginTop: 16, borderRadius: 10, padding: 16, alignItems: 'center' },
   buttonText: { fontWeight: '600', fontSize: 16 },
 });