feat: add RuntimeOrchestrator interface and request/response types

src/main/java/net/siegeln/cameleer/saas/runtime/BuildImageRequest.java

@@ -0,0 +1,9 @@
+package net.siegeln.cameleer.saas.runtime;
+
+import java.nio.file.Path;
+
+public record BuildImageRequest(
+        String baseImage,
+        Path jarPath,
+        String imageTag
+) {}

src/main/java/net/siegeln/cameleer/saas/runtime/ContainerStatus.java

@@ -0,0 +1,8 @@
+package net.siegeln.cameleer.saas.runtime;
+
+public record ContainerStatus(
+        String state,
+        boolean running,
+        int exitCode,
+        String error
+) {}

src/main/java/net/siegeln/cameleer/saas/runtime/LogConsumer.java

@@ -0,0 +1,6 @@
+package net.siegeln.cameleer.saas.runtime;
+
+@FunctionalInterface
+public interface LogConsumer {
+    void accept(String stream, String message, long timestampMillis);
+}

src/main/java/net/siegeln/cameleer/saas/runtime/RuntimeOrchestrator.java

@@ -0,0 +1,10 @@
+package net.siegeln.cameleer.saas.runtime;
+
+public interface RuntimeOrchestrator {
+    String buildImage(BuildImageRequest request);
+    String startContainer(StartContainerRequest request);
+    void stopContainer(String containerId);
+    void removeContainer(String containerId);
+    ContainerStatus getContainerStatus(String containerId);
+    void streamLogs(String containerId, LogConsumer consumer);
+}

src/main/java/net/siegeln/cameleer/saas/runtime/StartContainerRequest.java

@@ -0,0 +1,13 @@
+package net.siegeln.cameleer.saas.runtime;
+
+import java.util.Map;
+
+public record StartContainerRequest(
+        String imageRef,
+        String containerName,
+        String network,
+        Map<String, String> envVars,
+        long memoryLimitBytes,
+        int cpuShares,
+        int healthCheckPort
+) {}