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/_archive/package_test.rs

@@ -0,0 +1,100 @@
+//! Example of using the package management module
+//!
+//! This example demonstrates how to use the package management module
+//! to install, remove, and manage packages on different platforms.
+
+use sal::os::package::{PackHero, Platform};
+
+fn main() {
+    // Create a new PackHero instance
+    let mut hero = PackHero::new();
+    
+    // Enable debug output
+    hero.set_debug(true);
+    
+    // Detect the platform
+    let platform = hero.platform();
+    println!("Detected platform: {:?}", platform);
+    
+    // Only proceed if we're on a supported platform
+    if platform == Platform::Unknown {
+        println!("Unsupported platform. This example only works on Ubuntu and macOS.");
+        return;
+    }
+    
+    // Test package to install/check
+    let test_package = if platform == Platform::Ubuntu { "wget" } else { "wget" };
+    
+    // Check if the package is installed
+    match hero.is_installed(test_package) {
+        Ok(is_installed) => {
+            println!("Package {} is installed: {}", test_package, is_installed);
+            
+            if is_installed {
+                println!("Package {} is already installed", test_package);
+            } else {
+                println!("Package {} is not installed, attempting to install...", test_package);
+                
+                // Try to install the package
+                match hero.install(test_package) {
+                    Ok(_) => println!("Successfully installed package {}", test_package),
+                    Err(e) => println!("Failed to install package {}: {}", test_package, e),
+                }
+                
+                // Check if it was installed successfully
+                match hero.is_installed(test_package) {
+                    Ok(is_installed_now) => {
+                        if is_installed_now {
+                            println!("Verified package {} was installed successfully", test_package);
+                        } else {
+                            println!("Package {} was not installed successfully", test_package);
+                        }
+                    },
+                    Err(e) => println!("Error checking if package is installed: {}", e),
+                }
+            }
+        },
+        Err(e) => println!("Error checking if package is installed: {}", e),
+    }
+    
+    // Search for packages
+    let search_term = "wget";
+    println!("Searching for packages with term '{}'...", search_term);
+    match hero.search(search_term) {
+        Ok(results) => {
+            println!("Found {} packages matching '{}'", results.len(), search_term);
+            for (i, package) in results.iter().enumerate().take(5) {
+                println!("  {}. {}", i + 1, package);
+            }
+            if results.len() > 5 {
+                println!("  ... and {} more", results.len() - 5);
+            }
+        },
+        Err(e) => println!("Error searching for packages: {}", e),
+    }
+    
+    // List installed packages
+    println!("Listing installed packages...");
+    match hero.list_installed() {
+        Ok(packages) => {
+            println!("Found {} installed packages", packages.len());
+            println!("First 5 installed packages:");
+            for (i, package) in packages.iter().enumerate().take(5) {
+                println!("  {}. {}", i + 1, package);
+            }
+            if packages.len() > 5 {
+                println!("  ... and {} more", packages.len() - 5);
+            }
+        },
+        Err(e) => println!("Error listing installed packages: {}", e),
+    }
+    
+    // Update package lists
+    println!("Updating package lists...");
+    match hero.update() {
+        Ok(_) => println!("Successfully updated package lists"),
+        Err(e) => println!("Error updating package lists: {}", e),
+    }
+    
+    println!("Package management example completed");
+}