feat(registry): add privilege check and improve ProgId handling

- Add WFHasPrivilege function to check user privileges
- Refactor ProgId structure to use standard format with optional version
- Improve registry operations with safer key/value handling
- Update dependencies to include Win32_System_Registry

wfassoc_dylib/src/lib.rs

@@ -90,6 +90,11 @@ pub extern "C" fn WFGetLastError() -> *const c_char {
     get_last_error()
 }
 
+#[unsafe(no_mangle)]
+pub extern "C" fn WFHasPrivilege() -> bool {
+    wfassoc::utilities::has_privilege()
+}
+
 #[unsafe(no_mangle)]
 pub extern "C" fn WFAdd(left: u32, right: u32, rv: *mut u32) -> bool {
     unsafe { *rv = left + right; }