fix(app,learn,meditate): a device without speech recognition says so, and how to get one

On GrapheneOS, which installs no recogniser, the microphone did nothing
and stayed listening: speech_to_text's initialize throws a
PlatformException (recognizerNotAvailable) there rather than answering
false, and DeviceSpeechInput let it through. A listen now answers how it
went (SpeechStart: listening, noRecognizer, unavailable) and never
throws; Learn's field and Meditate's dream say that no speech
recognition is installed and name two to install (FUTO Voice Input,
Google's speech services), in halkyon_app's texts. It also passes
androidNoBluetooth, as the apps declare no Bluetooth permission the
plugin would otherwise ask for.

Whats-New: Where the device has no speech recognition, the microphone says so and how to get one.
Whats-New-De: Wo das Gerät keine Spracherkennung hat, sagt das Mikrofon das und wie du eine bekommst.

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/meditate/halkyon_meditate_flutter/test/app/meditate_app_test.dart

@@ -1067,6 +1067,17 @@ void main() {
       expect(find.byTooltip('Dictate'), findsOneWidget);
     });
 
+    testWidgets('where no speech recognition is installed, it says so and '
+        'how to get one', (tester) async {
+      speech.hasRecognizer = false;
+      await newDream(tester);
+      await tester.tap(find.byTooltip('Dictate'));
+      await tester.pumpAndSettle();
+
+      expect(find.textContaining('FUTO Voice Input'), findsOneWidget);
+      expect(find.byTooltip('Dictate'), findsOneWidget, reason: 'not stuck');
+    });
+
     testWidgets('where the device recognises no speech, there is no '
         'microphone, here or on Today', (tester) async {
       speech.supported = false;