refactor(package): rename traits and switch dep maps to IndexMap

Rename Package/CompletePackage to PackageInterface/CompletePackageInterface
to mirror Composer's interface names, and split each into its own module
under crates/mozart-core/src/package/.

Switch dependency-link and metadata maps from BTreeMap to indexmap::IndexMap
so serialized JSON preserves the original key ordering rather than sorting
alphabetically — matching PHP associative-array semantics. The
--sort-packages behaviour in `require` is preserved via sort_unstable_keys.

1 files changed, 6 insertions, 6 deletions

diff --git a/crates/mozart-class-map-generator/src/classmap.rs b/crates/mozart-class-map-generator/src/classmap.rs
index e1631f4..17ca04a 100644
--- a/crates/mozart-class-map-generator/src/classmap.rs
+++ b/crates/mozart-class-map-generator/src/classmap.rs
@@ -133,18 +133,18 @@ pub fn path_to_static_expr(file: &Path, vendor_dir: &Path, project_dir: &Path) -
 ///
 /// Returns `(dynamic_classmap, static_classmap, psr_violations)`.
 pub fn scan_psr_for_classmap(
-    psr4: &BTreeMap<String, Vec<String>>,
-    psr0: &BTreeMap<String, Vec<String>>,
+    psr4: &indexmap::IndexMap<String, Vec<String>>,
+    psr0: &indexmap::IndexMap<String, Vec<String>>,
     vendor_dir: &Path,
     project_dir: &Path,
     excluded: &[String],
 ) -> (
-    BTreeMap<String, String>,
-    BTreeMap<String, String>,
+    indexmap::IndexMap<String, String>,
+    indexmap::IndexMap<String, String>,
     Vec<String>,
 ) {
-    let mut dyn_map: BTreeMap<String, String> = BTreeMap::new();
-    let mut static_map: BTreeMap<String, String> = BTreeMap::new();
+    let mut dyn_map = indexmap::IndexMap::new();
+    let mut static_map = indexmap::IndexMap::new();
     let mut violations: Vec<String> = Vec::new();
 
     // Helper: resolve a PHP path expression to an absolute path.