refactor(core): improve code style and public API clarity

Replace bool-based settings with enums, refine visibility and
signatures, and standardize `Self` usage across the crate.

- Introduce `ErrorOutput`, `RenderOutput`, `PanicSilence`, `Verbosity`,
  `ColorOutput`, and `ProgressOutput` enums for clearer configuration
  semantics
- Make `GlobalResources`, `ProgramCell`, and
  `split_input`/`split_input_string` public
- Change hook info parameters to accept references and
  `split_input_string` to take `&str`
- Apply `Self` shorthand throughout implementations and add
  `#[must_use]` attributes where appropriate
- Enable strict clippy lints with targeted allowances

1 files changed, 4 insertions, 4 deletions

diff --git a/mingling_core/src/program/repl_exec/splitter.rs b/mingling_core/src/program/repl_exec/splitter.rs
index 267f42c..c74a3f1 100644
--- a/mingling_core/src/program/repl_exec/splitter.rs
+++ b/mingling_core/src/program/repl_exec/splitter.rs
@@ -1,14 +1,14 @@
 /// Wraps `split_input` to work with owned `String` inputs.
-pub(crate) fn split_input_string(input: String) -> Vec<String> {
-    split_input(&input)
+pub fn split_input_string(input: &str) -> Vec<String> {
+    split_input(input)
 }
 
 /// Splits a string input into arguments, respecting single quotes, double quotes,
 /// and backslash escaping.
-pub(crate) fn split_input(input: &str) -> Vec<String> {
+pub fn split_input(input: &str) -> Vec<String> {
     let mut result: Vec<String> = Vec::new();
     let mut current = String::new();
-    let mut chars = input.chars().peekable();
+    let mut chars = input.chars();
 
     while let Some(ch) = chars.next() {
         match ch {