Prepare Minecraft 26.3 technical alpha 1.0.1.2-alpha.1

ports/mc263/build.gradle

@@ -7,7 +7,7 @@ group = 'net.dnorberg.rivencraft'
 version = mod_version
 
 base {
-    archivesName = "rivencraft-${minecraft_version}-INCOMPLETE"
+    archivesName = "rivencraft-${minecraft_version}"
 }
 
 java.toolchain.languageVersion = JavaLanguageVersion.of(25)
@@ -78,13 +78,6 @@ tasks.named('processResources', ProcessResources).configure {
     }
 }
 
-// This partial 26.3 port is not a playable release. An explicitly requested
-// local test JAR can be built with -PallowIncompletePortJar=true, but the
-// default build must never produce a distributable artifact.
-tasks.named('jar').configure {
-    enabled = providers.gradleProperty('allowIncompletePortJar').map(String::toBoolean).getOrElse(false)
-}
-
 tasks.withType(JavaCompile).configureEach {
     options.encoding = 'UTF-8'
 }