feat: reorganize examples and add signature support to JobBuilder

- Reorganized examples into osiris/, sal/, and utils/ folders
- Moved hardcoded scripts to separate .rhai files
- Added signature() method to JobBuilder for job signing
- Updated OSIRIS context to use block_in_place instead of runtime
- Removed runtime field from OsirisContext
- Added typed save() methods for Note and Event objects
- Updated all examples to use new structure and APIs

examples/sal/scripts/containers/buildah_debug.rhai

@@ -0,0 +1,39 @@
+// buildah_debug.rhai
+// Demonstrates using the debug flag on the buildah Builder
+
+println("Starting buildah debug example...");
+
+// Define image and container names
+let base_image = "ubuntu:22.04";
+let container_name = "debug-test-container";
+
+println(`Creating container '${container_name}' from base image '${base_image}'...`);
+
+// Create a new buildah container using the builder pattern
+let builder = bah_new(container_name, base_image);
+
+// Enable debug mode
+println("Enabling debug mode...");
+builder.debug_mode = true;
+
+// Run a simple command to see debug output
+println("Running a command with debug enabled...");
+let result = builder.run("echo 'Hello from debug mode'");
+
+// Disable debug mode
+println("Disabling debug mode...");
+builder.debug_mode = false;
+
+// Run another command without debug
+println("Running a command with debug disabled...");
+let result2 = builder.run("echo 'Hello without debug'");
+
+// Enable debug mode again
+println("Enabling debug mode again...");
+builder.debug_mode = true;
+
+// Remove the container with debug enabled
+println("Removing the container with debug enabled...");
+builder.remove();
+
+println("Debug example completed!");