feat(settings): Add flavor-specific label to upgrade badge

Makes the inline upgrade badge a tiny star + short label (Pro on gplay, FOSS on foss) instead of icon-only. Text is flavor-switched via upgrade_badge_label in each flavor's strings.xml, primary color, labelSmall typography, no pill background to keep it lightweight when multiple rows stack it. Accessibility uses the existing common_upgrade_required_label.

app/src/foss/res/values/strings.xml

@@ -7,4 +7,5 @@
     <string name="upgrade_foss_sponsor_action">Sponsor development</string>
     <string name="upgrade_foss_sponsor_subtitle">No ads. No tracking. No Google Play lock-in.</string>
     <string name="upgrade_foss_sponsor_returned_early">Back already? Your support keeps CAPod alive.</string>
+    <string name="upgrade_badge_label">FOSS</string>
 </resources>

app/src/gplay/res/values/strings.xml

@@ -7,4 +7,5 @@
     <string name="upgrades_gplay_billing_result_error_label">Google Play Billing Error</string>
     <string name="upgrades_gplay_billing_result_error_description">There was an error when asking Google Play for your purchase details. Clear Google Play cache and reboot your phone.\n\nError %s</string>
     <string name="upgrade_restore_action">Restore purchase</string>
+    <string name="upgrade_badge_label">Pro</string>
 </resources>

app/src/main/java/eu/darken/capod/common/settings/UpgradeBadge.kt

@@ -1,11 +1,16 @@
 package eu.darken.capod.common.settings
 
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.twotone.Stars
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
@@ -15,12 +20,23 @@ import eu.darken.capod.common.compose.PreviewWrapper
 
 @Composable
 fun UpgradeBadge(modifier: Modifier = Modifier) {
-    Icon(
-        imageVector = Icons.TwoTone.Stars,
-        contentDescription = stringResource(R.string.common_upgrade_required_label),
-        tint = MaterialTheme.colorScheme.primary,
-        modifier = modifier.size(16.dp),
-    )
+    Row(
+        modifier = modifier,
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        Icon(
+            imageVector = Icons.TwoTone.Stars,
+            contentDescription = stringResource(R.string.common_upgrade_required_label),
+            tint = MaterialTheme.colorScheme.primary,
+            modifier = Modifier.size(16.dp),
+        )
+        Spacer(modifier = Modifier.width(2.dp))
+        Text(
+            text = stringResource(R.string.upgrade_badge_label),
+            color = MaterialTheme.colorScheme.primary,
+            style = MaterialTheme.typography.labelSmall,
+        )
+    }
 }
 
 @Preview2