refactor: minor comments/names fixes

src/app.rs

@@ -40,7 +40,7 @@ pub struct Cli {
   #[command(subcommand)]
   pub command: BaseCommand,
 
-  /// Cleanup on failure.
+  /// Cleanup on failure. No-op if failed because target directory already exists.
   #[arg(global = true, short = 'C', long)]
   cleanup: bool,
 
@@ -139,7 +139,7 @@ impl App {
         // Try to fetch refs early. If we can't get them, there's no point in continuing.
         remote.fetch_refs()?;
 
-        // Try to select a ref.
+        // Try to resolve a ref to specific hash.
         let hash = remote.resolve_hash()?;
 
         let name = path.as_ref().unwrap_or(&remote.repo);

src/cache.rs

@@ -22,7 +22,7 @@ const CACHE_ROOT: &str = "AppData/Local/arx/.cache";
 #[cfg(not(target_os = "windows"))]
 const CACHE_ROOT: &str = ".cache/arx";
 
-/// `<CACHE_ROOT>/cached/<hash>.tar.gz`
+/// `<CACHE_ROOT>/tarballs/<hash>.tar.gz`
 const CACHE_TARBALLS_DIR: &str = "tarballs";
 
 /// `<CACHE_ROOT>/manifest.toml`
@@ -82,7 +82,7 @@ pub struct Template {
 pub struct Item {
   /// Unix timestamp in milliseconds.
   timestamp: i64,
-  /// BLAKE3 hash of the tarball contents.
+  /// Ref/commit hash, either short of full
   hash: String,
 }