Initial commit: Helios Tracker location responder app

Minimal Android app that receives LOCATE commands via ntfy push
notifications and replies with GPS coordinates + battery level.
Uses WorkManager, FusedLocationProvider, and OkHttp.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

settings.gradle.kts

@@ -0,0 +1,27 @@
+pluginManagement {
+    repositories {
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "1.0.0"
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "helios-location-finder"
+include(":app")
+