Add Help section to Settings (about, source, guide, support) (v0.11.1)

A new Help card under Project shows the app name + live version (read from the
package, so it never drifts from the build) and links to the source repo, the
user guide, and the support page. Each link is a full-width ~64 dp row with a
large label, the destination URL beneath, and a chevron affordance — a
comfortable thumb target that opens in the system browser (missing-browser safe).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/build.gradle.kts

@@ -22,8 +22,8 @@ android {
         // (android.media.midi) and AAudio low-latency audio we rely on.
         minSdk = 26
         targetSdk = 34
-        versionCode = 27
-        versionName = "0.10.0"
+        versionCode = 29
+        versionName = "0.11.1"
 
         // We provide our own instrumentation runner if/when tests are added.
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"

app/src/main/java/space/rcmd/android/sizzle/ui/settings/SettingsScreen.kt

@@ -7,6 +7,7 @@ import android.content.Context
 import android.content.Intent
 import android.media.AudioDeviceInfo
 import android.media.AudioManager
+import android.net.Uri
 import android.view.KeyEvent
 import androidx.activity.compose.BackHandler
 import androidx.activity.compose.rememberLauncherForActivityResult
@@ -93,6 +94,7 @@ fun SettingsScreen(vm: AppViewModel) {
         ) {
             item { PanicButton(vm) }
             item { ProjectCard(vm) }
+            item { HelpCard() }
             item { AudioDevicesCard(vm) }
             item { InterfaceCard(vm) }
             item { ThemeCard(vm) }
@@ -370,6 +372,50 @@ private fun AudioDevicesCard(vm: AppViewModel) {
     }
 }
 
+/** About + external links: app version, source, user guide, and support. */
+@Composable
+private fun HelpCard() {
+    val context = LocalContext.current
+    val version = remember {
+        runCatching { context.packageManager.getPackageInfo(context.packageName, 0).versionName }.getOrNull()
+    }
+    val appName = remember { context.applicationInfo.loadLabel(context.packageManager).toString() }
+    SettingsCard("Help", subtitle = "About, source, user guide & support") {
+        Text(
+            appName + (version?.let { " v$it" } ?: ""),
+            style = MaterialTheme.typography.bodyMedium,
+        )
+        LinkRow("Source code", "https://git.rcmd.space/tiredsysadmin/sizzletracker-android")
+        LinkRow(
+            "User guide",
+            "https://git.rcmd.space/tiredsysadmin/sizzletracker-android/src/branch/main/docs/USER_GUIDE.md",
+        )
+        LinkRow("Support us", "https://rcmd.space/pages/support/")
+    }
+}
+
+/** A tappable label + destination URL that opens in the system browser. A tall,
+ *  full-width row (~64 dp) so it's a comfortable thumb target on a phone. */
+@Composable
+private fun LinkRow(label: String, url: String) {
+    val context = LocalContext.current
+    Row(
+        Modifier.fillMaxWidth().clickable { openUrl(context, url) }.padding(vertical = 12.dp),
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        Column(Modifier.weight(1f)) {
+            Text(label, style = MaterialTheme.typography.titleMedium, color = MaterialTheme.colorScheme.primary)
+            Text(url, style = MaterialTheme.typography.bodySmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        }
+        Icon(Icons.Filled.ChevronRight, contentDescription = null, tint = MaterialTheme.colorScheme.primary)
+    }
+}
+
+/** Open [url] in the user's browser; a missing browser is ignored rather than crashing. */
+private fun openUrl(context: Context, url: String) {
+    runCatching { context.startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(url))) }
+}
+
 /** Interface options: currently the mixer VU-meter toggle. */
 @Composable
 private fun InterfaceCard(vm: AppViewModel) {