Add map/list toggle on the start screen; fix text contrast over map

The "found N places" overlay text (and the checking/no-places states)
used the theme's default light text color, which washed out against
the now-real, mostly light-colored OSM map tiles. Fixed with a fixed
dark color (Mocha.Crust) for text overlaid on the map.

Added a toggle button (top bar, visible once places are found) that
switches the start screen between the map and a plain list preview of
the found places (reusing PlaceCard in its neutral/UPCOMING state) —
lets the user see what's "ready to read" before committing to Start.

Verified: testDebugUnitTest passes, assembleDebug produces a working
APK, sent to Telegram.

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

android/app/src/main/java/com/guidecity/app/ui/map/MapScreen.kt

@@ -3,12 +3,14 @@ package com.guidecity.app.ui.map
 import android.Manifest
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
@@ -16,12 +18,15 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Favorite
+import androidx.compose.material.icons.filled.List
+import androidx.compose.material.icons.filled.Map
 import androidx.compose.material.icons.filled.Settings
 import androidx.compose.material3.Button
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.ListItem
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
@@ -40,6 +45,12 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import com.guidecity.app.R
 import com.guidecity.app.map.CityMapView
+import com.guidecity.app.theme.Mocha
+import com.guidecity.app.ui.guide.CardState
+import com.guidecity.app.ui.guide.PlaceCard
+
+/** Overlay text sits on top of the (now real, often light-colored) map tiles, so it needs a fixed dark color rather than the theme's default light-on-dark text. */
+private val MapOverlayTextColor = Mocha.Crust
 
 @Composable
 fun MapScreen(
@@ -53,6 +64,7 @@ fun MapScreen(
     val resolvedLocation by viewModel.resolvedLocation.collectAsState()
     val nearbyPlaces by viewModel.nearbyPlaces.collectAsState()
     var query by remember { mutableStateOf("") }
+    var showList by remember { mutableStateOf(false) }
 
     val permissionLauncher = rememberLauncherForActivityResult(
         contract = ActivityResultContracts.RequestMultiplePermissions(),
@@ -69,6 +81,16 @@ fun MapScreen(
             TopAppBar(
                 title = { Text(stringResource(R.string.app_name)) },
                 actions = {
+                    if (uiState is MapUiState.ReadyToStart) {
+                        IconButton(onClick = { showList = !showList }) {
+                            Icon(
+                                imageVector = if (showList) Icons.Filled.Map else Icons.Filled.List,
+                                contentDescription = stringResource(
+                                    if (showList) R.string.map_show_map else R.string.map_show_list,
+                                ),
+                            )
+                        }
+                    }
                     IconButton(onClick = onOpenFavorites) {
                         Icon(Icons.Filled.Favorite, contentDescription = stringResource(R.string.favorites_title))
                     }
@@ -151,7 +173,7 @@ fun MapScreen(
                         CircularProgressIndicator()
                         if (state == MapUiState.CheckingNearby) {
                             Spacer(modifier = Modifier.height(12.dp))
-                            Text(stringResource(R.string.map_checking_nearby))
+                            Text(stringResource(R.string.map_checking_nearby), color = MapOverlayTextColor)
                         }
                     }
                 }
@@ -164,11 +186,28 @@ fun MapScreen(
                         verticalArrangement = Arrangement.Center,
                         horizontalAlignment = Alignment.CenterHorizontally,
                     ) {
-                        Text(stringResource(R.string.map_no_places_nearby))
+                        Text(stringResource(R.string.map_no_places_nearby), color = MapOverlayTextColor)
                     }
                 }
 
                 is MapUiState.ReadyToStart -> {
+                    if (showList) {
+                        LazyColumn(
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .background(MaterialTheme.colorScheme.background),
+                            contentPadding = PaddingValues(bottom = 140.dp),
+                        ) {
+                            items(nearbyPlaces, key = { it.id }) { place ->
+                                PlaceCard(
+                                    place = place,
+                                    state = CardState.UPCOMING,
+                                    modifier = Modifier.padding(horizontal = 12.dp, vertical = 6.dp),
+                                )
+                            }
+                        }
+                    }
+
                     Column(
                         modifier = Modifier
                             .fillMaxSize()
@@ -178,6 +217,7 @@ fun MapScreen(
                     ) {
                         Text(
                             text = stringResource(R.string.map_places_found, state.placesFound, state.radiusM),
+                            color = MapOverlayTextColor,
                         )
                         Spacer(modifier = Modifier.height(16.dp))
                         Button(onClick = onLocationResolved) {

android/app/src/main/res/values-ru/strings.xml

@@ -19,6 +19,8 @@
     <string name="map_places_found">Найдено мест поблизости: %1$d (в радиусе %2$d м)</string>
     <string name="map_start">Начать</string>
     <string name="map_no_places_nearby">В радиусе 10 км ничего не нашлось.</string>
+    <string name="map_show_list">Показать список</string>
+    <string name="map_show_map">Показать карту</string>
 
     <string name="guide_no_places_nearby">Поблизости пока не найдено интересных мест.</string>
     <string name="guide_places_count">Мест поблизости: %1$d</string>

android/app/src/main/res/values/strings.xml

@@ -19,6 +19,8 @@
     <string name="map_places_found">Found %1$d place(s) nearby (within %2$d m)</string>
     <string name="map_start">Start</string>
     <string name="map_no_places_nearby">Nothing found within 10 km of here.</string>
+    <string name="map_show_list">Show list</string>
+    <string name="map_show_map">Show map</string>
 
     <string name="guide_no_places_nearby">No places found nearby yet.</string>
     <string name="guide_places_count">%1$d place(s) nearby</string>