chore: add pre-push hook and fix formatting

- Add scripts/ci/pre-push.sh that runs `just check` before push
- Fix rustfmt formatting in unify.rs from PR #5

Author: loadingalias

scripts/ci/pre-push.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+# Pre-push hook: runs quality checks before allowing push
+# Symlink this to .git/hooks/pre-push or run: ln -sf ../../scripts/ci/pre-push.sh .git/hooks/pre-push
+
+set -e
+
+echo "Running pre-push checks..."
+just check
+
+echo "All checks passed."

src/commands/unify.rs

@@ -315,11 +315,7 @@ pub fn run_unify_apply(
     created_backup_id = Some(backup_id);
   }
 
-  let sort_mode = ctx
-    .config
-    .as_ref()
-    .map(|c| c.unify.sort_dependencies)
-    .unwrap_or(true);
+  let sort_mode = ctx.config.as_ref().map(|c| c.unify.sort_dependencies).unwrap_or(true);
   let writer = ManifestWriter::new().with_dependency_sort(sort_mode);
 
   if !plan.workspace_deps.is_empty() {