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, 5 insertions, 6 deletions

diff --git a/mingling_core/src/program/string_vec.rs b/mingling_core/src/program/string_vec.rs
index c2e6220..a2eb433 100644
--- a/mingling_core/src/program/string_vec.rs
+++ b/mingling_core/src/program/string_vec.rs
@@ -20,7 +20,7 @@ impl From<StringVec> for Vec<String> {
 
 impl<const N: usize> From<[&str; N]> for StringVec {
     fn from(slice: [&str; N]) -> Self {
-        StringVec {
+        Self {
             vec: slice.iter().map(|&s| s.to_string()).collect(),
         }
     }
@@ -28,21 +28,20 @@ impl<const N: usize> From<[&str; N]> for StringVec {
 
 impl From<&[&str]> for StringVec {
     fn from(slice: &[&str]) -> Self {
-        StringVec {
+        Self {
             vec: slice.iter().map(|&s| s.to_string()).collect(),
         }
     }
 }
-
 impl From<Vec<String>> for StringVec {
     fn from(vec: Vec<String>) -> Self {
-        StringVec { vec }
+        Self { vec }
     }
 }
 
 impl From<&[String]> for StringVec {
     fn from(slice: &[String]) -> Self {
-        StringVec {
+        Self {
             vec: slice.to_vec(),
         }
     }
@@ -50,7 +49,7 @@ impl From<&[String]> for StringVec {
 
 impl From<Vec<&str>> for StringVec {
     fn from(vec: Vec<&str>) -> Self {
-        StringVec {
+        Self {
             vec: vec.iter().map(|&s| s.to_string()).collect(),
         }
     }