Implement stable Sable gravity frame physics

build.gradle

@@ -12,6 +12,13 @@ base {
 
 java.toolchain.languageVersion = JavaLanguageVersion.of(21)
 
+sourceSets {
+    // Cosmonautics 26.07.270 advertises a relocated Orekit javac plugin that is absent from its
+    // published jar. The dev-only provider keeps Minecraft MCP's in-process Java compiler usable.
+    // This source set is placed on runClient's classpath and is never included in sablegravity.jar.
+    mcpCompat
+}
+
 repositories {
     mavenCentral()
     maven {
@@ -61,7 +68,12 @@ dependencies {
     // Development client mod set. Aeronautics requires Create and Sable.
     runtimeOnly "maven.modrinth:create:${project.create_version}"
     runtimeOnly "maven.modrinth:create-aeronautics:${project.aeronautics_version}"
+    runtimeOnly "maven.modrinth:micg1iTH:${project.cosmonautics_version}"
     runtimeOnly "maven.modrinth:the-one-probe:${project.the_one_probe_version}"
+
+    // Local-only game control/inspection bridge used by the development client.
+    runtimeOnly files('libs/minecraft_mcp-0.1.0.jar')
+    runtimeOnly sourceSets.mcpCompat.output
 }
 
 tasks.withType(JavaCompile).configureEach {