chore(lint): add Ruby linter scripts and apply rules

Adds scripts/lint with linters for mod.rs naming, contiguous use blocks,
use-as aliasing, sorted Cargo dependencies, std::collections maps, and
workspace dependency requirements. Renames mod.rs files, reorders use
statements, drops unnecessary import aliases, and sorts Cargo.toml
entries to satisfy the new rules.

1 files changed, 14 insertions, 0 deletions

diff --git a/scripts/linters/no_mod_rs.rb b/scripts/linters/no_mod_rs.rb
new file mode 100755
index 0000000..8fef9f0
--- /dev/null
+++ b/scripts/linters/no_mod_rs.rb
@@ -0,0 +1,14 @@
+def no_mod_rs(root_dir)
+  pattern = root_dir.join('crates', '*', 'src', '**', 'mod.rs').to_s
+  errors = Dir.glob(pattern).sort.map do |path|
+    Pathname.new(path).relative_path_from(root_dir).to_s
+  end
+
+  return true if errors.empty?
+
+  puts 'Found `mod.rs` file(s). Use `src/<submodule>.rs` instead of `<submodule>/mod.rs`:'
+  errors.each do |path|
+    puts "  #{path}"
+  end
+  false
+end