feat: Migrate SAL to Cargo workspace

- Migrate individual modules to independent crates
- Refactor dependencies for improved modularity
- Update build system and testing infrastructure
- Update documentation to reflect new structure

os/tests/platform_tests.rs

@@ -5,7 +5,7 @@ fn test_platform_detection_consistency() {
     // Test that platform detection functions return consistent results
     let is_osx = platform::is_osx();
     let is_linux = platform::is_linux();
-    
+
     // On any given system, only one of these should be true
     // (or both false if running on Windows or other OS)
     if is_osx {
@@ -21,7 +21,7 @@ fn test_architecture_detection_consistency() {
     // Test that architecture detection functions return consistent results
     let is_arm = platform::is_arm();
     let is_x86 = platform::is_x86();
-    
+
     // On any given system, only one of these should be true
     // (or both false if running on other architectures)
     if is_arm {
@@ -76,55 +76,61 @@ fn test_x86_detection() {
 #[test]
 fn test_check_linux_x86() {
     let result = platform::check_linux_x86();
-    
+
     // The result should depend on the current platform
     #[cfg(all(target_os = "linux", target_arch = "x86_64"))]
     {
         assert!(result.is_ok(), "Should succeed on Linux x86_64");
     }
-    
+
     #[cfg(not(all(target_os = "linux", target_arch = "x86_64")))]
     {
         assert!(result.is_err(), "Should fail on non-Linux x86_64 platforms");
-        
+
         // Check that the error message is meaningful
         let error = result.unwrap_err();
         let error_string = error.to_string();
-        assert!(error_string.contains("Linux x86_64"), 
-                "Error message should mention Linux x86_64: {}", error_string);
+        assert!(
+            error_string.contains("Linux x86_64"),
+            "Error message should mention Linux x86_64: {}",
+            error_string
+        );
     }
 }
 
 #[test]
 fn test_check_macos_arm() {
     let result = platform::check_macos_arm();
-    
+
     // The result should depend on the current platform
     #[cfg(all(target_os = "macos", target_arch = "aarch64"))]
     {
         assert!(result.is_ok(), "Should succeed on macOS ARM");
     }
-    
+
     #[cfg(not(all(target_os = "macos", target_arch = "aarch64")))]
     {
         assert!(result.is_err(), "Should fail on non-macOS ARM platforms");
-        
+
         // Check that the error message is meaningful
         let error = result.unwrap_err();
         let error_string = error.to_string();
-        assert!(error_string.contains("macOS ARM"), 
-                "Error message should mention macOS ARM: {}", error_string);
+        assert!(
+            error_string.contains("macOS ARM"),
+            "Error message should mention macOS ARM: {}",
+            error_string
+        );
     }
 }
 
 #[test]
 fn test_platform_error_creation() {
     use sal_os::platform::PlatformError;
-    
+
     // Test that we can create platform errors
     let error = PlatformError::new("Test Error", "This is a test error message");
     let error_string = error.to_string();
-    
+
     assert!(error_string.contains("Test Error"));
     assert!(error_string.contains("This is a test error message"));
 }
@@ -132,11 +138,11 @@ fn test_platform_error_creation() {
 #[test]
 fn test_platform_error_display() {
     use sal_os::platform::PlatformError;
-    
+
     // Test error display formatting
     let error = PlatformError::Generic("Category".to_string(), "Message".to_string());
     let error_string = format!("{}", error);
-    
+
     assert!(error_string.contains("Category"));
     assert!(error_string.contains("Message"));
 }
@@ -144,11 +150,11 @@ fn test_platform_error_display() {
 #[test]
 fn test_platform_error_debug() {
     use sal_os::platform::PlatformError;
-    
+
     // Test error debug formatting
     let error = PlatformError::Generic("Category".to_string(), "Message".to_string());
     let debug_string = format!("{:?}", error);
-    
+
     assert!(debug_string.contains("Generic"));
     assert!(debug_string.contains("Category"));
     assert!(debug_string.contains("Message"));
@@ -160,15 +166,15 @@ fn test_platform_functions_are_deterministic() {
     let osx1 = platform::is_osx();
     let osx2 = platform::is_osx();
     assert_eq!(osx1, osx2);
-    
+
     let linux1 = platform::is_linux();
     let linux2 = platform::is_linux();
     assert_eq!(linux1, linux2);
-    
+
     let arm1 = platform::is_arm();
     let arm2 = platform::is_arm();
     assert_eq!(arm1, arm2);
-    
+
     let x86_1 = platform::is_x86();
     let x86_2 = platform::is_x86();
     assert_eq!(x86_1, x86_2);
@@ -180,7 +186,7 @@ fn test_platform_check_functions_consistency() {
     let is_linux_x86 = platform::is_linux() && platform::is_x86();
     let check_linux_x86_result = platform::check_linux_x86().is_ok();
     assert_eq!(is_linux_x86, check_linux_x86_result);
-    
+
     let is_macos_arm = platform::is_osx() && platform::is_arm();
     let check_macos_arm_result = platform::check_macos_arm().is_ok();
     assert_eq!(is_macos_arm, check_macos_arm_result);