Fix Windows/macOS build errors - add Win32_UI feature and remove unused imports

ghost-core/Cargo.toml

@@ -26,6 +26,7 @@ windows = { version = "0.58", features = [
     "Win32_System_Memory",
     "Win32_System_LibraryLoader",
     "Win32_Security",
+    "Win32_UI_WindowsAndMessaging",
 ] }
 
 [target.'cfg(unix)'.dependencies]

ghost-core/src/hollowing.rs

@@ -1,7 +1,7 @@
 use crate::{MemoryRegion, ProcessInfo, Result};
 
 #[cfg(windows)]
-use crate::memory::{read_pe_header_info, validate_pe_header, PEHeaderValidation};
+use crate::memory::{validate_pe_header, PEHeaderValidation};
 
 #[derive(Debug, Clone)]
 pub struct HollowingDetection {

ghost-core/src/hooks.rs

@@ -73,10 +73,9 @@ pub struct HookDetectionResult {
 mod platform {
     use super::{HookDetectionResult, HookInfo, HookType};
     use crate::{GhostError, Result};
-    use std::collections::HashMap;
     use windows::Win32::Foundation::CloseHandle;
     use windows::Win32::System::Diagnostics::Debug::ReadProcessMemory;
-    use windows::Win32::System::LibraryLoader::{GetModuleHandleW, GetProcAddress, LoadLibraryW};
+    use windows::Win32::System::LibraryLoader::{GetModuleHandleW, GetProcAddress};
     use windows::Win32::System::ProcessStatus::{
         EnumProcessModulesEx, GetModuleBaseNameW, GetModuleInformation, LIST_MODULES_ALL,
         MODULEINFO,
@@ -111,7 +110,6 @@ mod platform {
     pub fn detect_hook_injection(target_pid: u32) -> Result<HookDetectionResult> {
         let mut hooks = Vec::new();
         let mut suspicious_count = 0;
-        let mut global_hooks = 0;
         let mut inline_hooks = 0;
 
         // Detect inline hooks in critical APIs

ghost-core/src/process.rs

@@ -49,7 +49,7 @@ impl fmt::Display for ProcessInfo {
 mod platform {
     use super::ProcessInfo;
     use anyhow::{Context, Result};
-    use windows::Win32::Foundation::{CloseHandle, HANDLE};
+    use windows::Win32::Foundation::CloseHandle;
     use windows::Win32::System::Diagnostics::ToolHelp::{
         CreateToolhelp32Snapshot, Process32FirstW, Process32NextW, PROCESSENTRY32W,
         TH32CS_SNAPPROCESS,