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/process/process_list.rhai

@@ -0,0 +1,29 @@
+print("Listing processes using process_list()...\n");
+
+// Example: List all processes (use empty string as pattern)
+// print("Listing all running processes (this might be a long list!)...\n");
+// let all_processes = process_list("");
+// print(`Found ${all_processes.len()} total processes.`);
+// // Optional: print details for a few processes
+// for i in 0..min(all_processes.len(), 5) {
+//     let proc = all_processes[i];
+//     print(`- PID: ${proc.pid}, Name: ${proc.name}, CPU: ${proc.cpu}%, Memory: ${proc.memory}`);
+// }
+
+print("Listing processes matching 'bash'...\n");
+
+// Example: List processes matching a pattern
+let pattern_to_list = "bash"; // Or another common process like "SystemSettings" or "Finder" on macOS, "explorer.exe" on Windows, "systemd" on Linux
+let matching_processes = process_list(pattern_to_list); // Halts on OS error during list attempt
+
+if (matching_processes.len() > 0) {
+    print(`Found ${matching_processes.len()} processes matching '${pattern_to_list}':`);
+    for proc in matching_processes {
+        // Access properties of the ProcessInfo object
+        print(`- PID: ${proc.pid}, Name: ${proc.name}, CPU: ${proc.cpu}%, Memory: ${proc.memory}`);
+    }
+} else {
+    print(`No processes found matching '${pattern_to_list}'.`);
+}
+
+print("\nprocess_list() example finished.");