Updater: point to oxmc.me update API with device/type/serial params

Update and changelog URLs now point to https://oxmc.me/aosp_apis/.
Add {sn} placeholder (ro.serialno) and {type} (ro.pawlet.releasetype,
lowercased) to both URLs so the server can filter by build type and
identify individual devices.

app/src/main/java/me/pawlet/updater/misc/Utils.java

@@ -155,6 +155,7 @@ public class Utils {
         String device = SystemProperties.get(Constants.PROP_NEXT_DEVICE,
                 SystemProperties.get(Constants.PROP_DEVICE));
         String type = SystemProperties.get(Constants.PROP_RELEASE_TYPE).toLowerCase(Locale.ROOT);
+        String serial = SystemProperties.get("ro.serialno", "");
 
         String serverUrl = SystemProperties.get(Constants.PROP_UPDATER_URI);
         if (serverUrl.trim().isEmpty()) {
@@ -163,7 +164,8 @@ public class Utils {
 
         return serverUrl.replace("{device}", device)
                 .replace("{type}", type)
-                .replace("{incr}", incrementalVersion);
+                .replace("{incr}", incrementalVersion)
+                .replace("{sn}", serial);
     }
 
     public static String getUpgradeBlockedURL(Context context) {
@@ -175,7 +177,10 @@ public class Utils {
     public static String getChangelogURL(Context context) {
         String device = SystemProperties.get(Constants.PROP_NEXT_DEVICE,
                 SystemProperties.get(Constants.PROP_DEVICE));
-        return context.getString(R.string.menu_changelog_url, device);
+        String serial = SystemProperties.get("ro.serialno", "");
+        return context.getString(R.string.menu_changelog_url)
+                .replace("{device}", device)
+                .replace("{sn}", serial);
     }
 
     public static void triggerUpdate(Context context, String downloadId) {

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

@@ -19,7 +19,7 @@
         Optional placeholders replaced at runtime:
           {device} - Device name
     -->
-    <string name="updater_server_url" translatable="false">https://updates.pawlet.me/api/v1/{device}/</string>
+    <string name="updater_server_url" translatable="false">https://oxmc.me/aosp_apis/update.php?device={device}&amp;type={type}&amp;sn={sn}</string>
 
     <string name="verification_failed_notification">Verification failed</string>
     <string name="verifying_download_notification">Verifying update</string>
@@ -71,7 +71,7 @@
     <string name="menu_copy_url">Copy URL</string>
     <string name="menu_export_update">Export update</string>
     <string name="menu_show_changelog">Show changelog</string>
-    <string name="menu_changelog_url" translatable="false">https://updates.pawlet.me/changelog/<xliff:g id="device_name">%1$s</xliff:g></string>
+    <string name="menu_changelog_url" translatable="false">https://oxmc.me/aosp_apis/update-changelog.php?device={device}&amp;sn={sn}</string>
     <string name="menu_ab_perf_mode">Prioritize update process</string>
     <string name="menu_update_recovery">Update recovery</string>
     <string name="toast_forced_update_recovery">It is impossible to disable PawletOS Recovery updates on this device.</string>