erofs-debug: Switch from composefs to composefs-erofs dependency

The erofs-debug binary now depends directly on composefs-erofs rather
than going through the composefs crate, since all the erofs debug
functionality lives in composefs-erofs. This removes erofs-debug's
dependency on the full composefs crate.

Assisted-by: OpenCode (Claude claude-opus-4-6)
Signed-off-by: Colin Walters <walters@verbum.org>

Author: cgwalters

crates/erofs-debug/Cargo.toml

@@ -12,7 +12,7 @@ version.workspace = true
 
 [dependencies]
 clap = { version = "4.0.1", default-features = false, features = ["std", "help", "usage", "derive"] }
-composefs = { workspace = true }
+composefs-erofs = { workspace = true }
 
 [lints]
 workspace = true

crates/erofs-debug/src/main.rs

@@ -8,7 +8,7 @@ use std::{fs::File, io::Read, path::PathBuf};
 
 use clap::Parser;
 
-use composefs::erofs::debug::debug_img;
+use composefs_erofs::debug::debug_img;
 
 /// Produce a detailed dump of an entire erofs image
 ///