Supporting colors on Windows and fixed Android bug.

Fixed some bugs on Windows release.

src/main.rs

@@ -87,6 +87,10 @@ enum SdkCommands {
 }
 
 fn main() -> Result<()> {
+    // Enable colors on Windows
+    #[cfg(windows)]
+    colored::control::set_virtual_terminal(true).ok();
+    
     let cli = Cli::parse();
     
     print_banner();

src/sdk/android.rs

@@ -130,12 +130,22 @@ fn run_sdkmanager(sdkmanager: &Path, sdk_root: &Path) -> Result<()> {
 
 pub fn verify(sdk_path: &Path) -> Result<()> {
     if !sdk_path.exists() {
-        anyhow::bail!("Android SDK not found at: {}", sdk_path.display());
+        anyhow::bail!(
+            "Android SDK not found at: {}\n\
+             Run 'weevil sdk install' to download it automatically,\n\
+             or install manually from: https://developer.android.com/studio#command-tools",
+            sdk_path.display()
+        );
     }
     
     let platform_tools = sdk_path.join("platform-tools");
     if !platform_tools.exists() {
-        anyhow::bail!("Android SDK incomplete: platform-tools not found");
+        anyhow::bail!(
+            "Android SDK incomplete: platform-tools not found\n\
+             Expected at: {}\n\
+             Run 'weevil sdk install' to complete the installation",
+            platform_tools.display()
+        );
     }
     
     Ok(())