feat(todo): a pin in the map's middle, and what is around it (ADR 0033, D32)

The location picker fills the screen with its map, the search floating
over it. A pin stays in the middle, lifting while the map moves, as
Molly's; where it lands the instance names the address and lists the
places around, as Threema's. That is `nearby` on the search endpoint,
for those signed in, the point neither kept nor logged, counted among
the searches: two lookups, as a plain one finds house numbers alone.

Fixes the map's credit, which overflowed a phone and was pale on white.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

apps/todo/halkyon_todo_flutter/lib/l10n/app_de.arb

@@ -287,6 +287,9 @@
   "locationSearchFailed": "Die Suche hat nicht geklappt. Versuch es noch einmal.",
   "locationNoResults": "Nichts gefunden",
   "locationRecent": "Zuletzt verwendet",
+  "locationNearby": "Oder einen Ort in der Nähe wählen",
+  "locationZoomIn": "Vergrößern",
+  "locationZoomOut": "Verkleinern",
   "locationPin": "Gesetzter Ort",
   "locationName": "Name",
   "locationMine": "Mein Standort",

apps/todo/halkyon_todo_flutter/lib/l10n/app_en.arb

@@ -962,6 +962,18 @@
   "@locationRecent": {
     "description": "The location picker's places of the person's tasks."
   },
+  "locationNearby": "Or choose a nearby place",
+  "@locationNearby": {
+    "description": "Above the places around the pin in the location picker."
+  },
+  "locationZoomIn": "Zoom in",
+  "@locationZoomIn": {
+    "description": "The location picker's button zooming the map in."
+  },
+  "locationZoomOut": "Zoom out",
+  "@locationZoomOut": {
+    "description": "The location picker's button zooming the map out."
+  },
   "locationPin": "Pinned place",
   "@locationPin": {
     "description": "The name of a pin placed by hand where nothing names the spot."

apps/todo/halkyon_todo_flutter/lib/l10n/app_localizations.dart

@@ -1822,6 +1822,24 @@ abstract class AppLocalizations {
   /// **'Recent'**
   String get locationRecent;
 
+  /// Above the places around the pin in the location picker.
+  ///
+  /// In en, this message translates to:
+  /// **'Or choose a nearby place'**
+  String get locationNearby;
+
+  /// The location picker's button zooming the map in.
+  ///
+  /// In en, this message translates to:
+  /// **'Zoom in'**
+  String get locationZoomIn;
+
+  /// The location picker's button zooming the map out.
+  ///
+  /// In en, this message translates to:
+  /// **'Zoom out'**
+  String get locationZoomOut;
+
   /// The name of a pin placed by hand where nothing names the spot.
   ///
   /// In en, this message translates to:

apps/todo/halkyon_todo_flutter/lib/l10n/app_localizations_de.dart

@@ -1126,6 +1126,15 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get locationRecent => 'Zuletzt verwendet';
 
+  @override
+  String get locationNearby => 'Oder einen Ort in der Nähe wählen';
+
+  @override
+  String get locationZoomIn => 'Vergrößern';
+
+  @override
+  String get locationZoomOut => 'Verkleinern';
+
   @override
   String get locationPin => 'Gesetzter Ort';
 

apps/todo/halkyon_todo_flutter/lib/l10n/app_localizations_en.dart

@@ -1125,6 +1125,15 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get locationRecent => 'Recent';
 
+  @override
+  String get locationNearby => 'Or choose a nearby place';
+
+  @override
+  String get locationZoomIn => 'Zoom in';
+
+  @override
+  String get locationZoomOut => 'Zoom out';
+
   @override
   String get locationPin => 'Pinned place';