Voice replies, on-device speech, message cards and 0.1.0-alpha

Gearslip now reads messages aloud and takes replies by voice. It asks
whether to reply, reads the reply back and sends it after a countdown.
Say "cancel" or "change it" to stop or redo it, or tap a quick reply.

Speech-to-text runs on the phone with whisper.cpp and a small Whisper
model, so voice works without Google services. The model ships in the
repo, so a fresh clone builds with nothing to download.

New messages show as one card at the top right, with a bar counting
down to when it closes or sends.

Other changes:
- Steering wheel buttons, knobs and D-pads drive the car screen.
- Smoother car audio: chunks wait for the car instead of dropping.
- Sharper, more responsive video.
- The Gearslip switch in Settings now stops it taking the USB
  connection.
- Apps that refuse Gearslip say so instead of loading forever.
- The phone asks for notification permission.
- The home screen stays upright.
- The car screen shows what's new after an update.

gearslip/build.gradle.kts

@@ -32,8 +32,8 @@ android {
         applicationId = "app.seb3thehacker.gearslip"
         minSdk = 31
         targetSdk = 37
-        versionCode = 5
-        versionName = "0.0.05-alpha"
+        versionCode = 6
+        versionName = "0.1.0-alpha"
         manifestPlaceholders["appLabel"] = "Gearslip"
     }
 
@@ -78,6 +78,23 @@ android {
         targetCompatibility = JavaVersion.VERSION_21
     }
 
+    defaultConfig {
+        // Speech-to-text ships for 64-bit ARM only: every phone Gearslip runs on, and one copy
+        // of the native library instead of four.
+        ndk { abiFilters += "arm64-v8a" }
+    }
+    ndkVersion = "27.1.12297006"
+    externalNativeBuild {
+        cmake {
+            path = file("src/main/cpp/CMakeLists.txt")
+            version = "3.22.1"
+        }
+    }
+    androidResources {
+        // Model weights barely compress, and stored plainly they stream straight out of the APK.
+        noCompress += "bin"
+    }
+
     testOptions {
         // GearslipLog calls android.util.Log, which is a stub on the local JVM.
         unitTests.isReturnDefaultValues = true
@@ -126,3 +143,4 @@ tasks.withType<KotlinJvmCompile>().configureEach {
         jvmTarget.set(JvmTarget.JVM_21)
     }
 }
+