Rebrand WireGuard Android to Wire VPN

- Rename package and all Java/Kotlin sources: com.wireguard.android -> page.onram.wirevpn
- applicationId -> page.onram.wirevpn, version 1.0.20260910 (520)
- New launcher icon: dark circle, white padlock with bold W
- App name 'Wire VPN' in all locales; remove donate preference
- Release signing from KEYSTORE_* env vars (CI)
- F-Droid v2: scripts/fdroid_metadata.py
- GitHub/Gitea Actions workflow: auto-build signed APK + F-Droid
  metadata/signature on every new release, attach to the release
- README + NOTICE (license inventory)

tunnel/build.gradle.kts

@@ -8,7 +8,6 @@ val pkg: String = providers.gradleProperty("wireguardPackageName").get()
 plugins {
     alias(libs.plugins.android.library)
     `maven-publish`
-    signing
 }
 
 android {
@@ -83,9 +82,9 @@ publishing {
                 from(components["release"])
             }
             pom {
-                name = "WireGuard Tunnel Library"
-                description = "Embeddable tunnel library for WireGuard for Android"
-                url = "https://www.wireguard.com/"
+                name = "Wire VPN Tunnel Library"
+                description = "Embeddable tunnel library for Wire VPN for Android"
+                url = "https://git.obahan.xyz/frank/wirevpn"
 
                 licenses {
                     license {
@@ -95,18 +94,18 @@ publishing {
                     }
                 }
                 scm {
-                    connection = "scm:git:https://git.zx2c4.com/wireguard-android"
-                    developerConnection = "scm:git:https://git.zx2c4.com/wireguard-android"
-                    url = "https://git.zx2c4.com/wireguard-android"
+                    connection = "scm:git:https://git.obahan.xyz/frank/wirevpn.git"
+                    developerConnection = "scm:git:https://git.obahan.xyz/frank/wirevpn.git"
+                    url = "https://git.obahan.xyz/frank/wirevpn"
                 }
                 developers {
                     organization {
-                        name = "WireGuard"
-                        url = "https://www.wireguard.com/"
+                        name = "Wire VPN"
+                        url = "https://git.obahan.xyz/frank/wirevpn"
                     }
                     developer {
-                        name = "WireGuard"
-                        email = "team@wireguard.com"
+                        name = "Wire VPN"
+                        email = "frank@onram.page"
                     }
                 }
             }
@@ -136,8 +135,3 @@ tasks.register<Zip>("zipReleasePublication") {
     destinationDirectory.set(layout.buildDirectory.dir("distributions"))
     into("${mavenGroupPath}/${mavenArtifactId}/${mavenVersion}")
 }
-
-signing {
-    useGpgCmd()
-    sign(publishing.publications)
-}