feat(loader): wire RootPackageLoader::load end-to-end

Resolve the remaining todo!()/placeholder sites in RootPackageLoader::load
so the root package loads with real data:

- Unbox config at use sites and change load()'s parameter from
  IndexMap<String, Box<PhpMixed>> to IndexMap<String, PhpMixed>, matching
  ArrayLoader::load / VersionGuesser::guess_version and dropping the
  redundant box/unbox round-trip at the factory call site.
- Expose replace_version through CompletePackage/RootPackage inherent
  delegation and a RootPackageHandle method (PHP Package::replaceVersion,
  inherited), and apply it for the auto-versioned default.
- Collect require/require-dev links via getter dispatch and build the
  pretty-string map feeding extractAliases/StabilityFlags/References.

Also reconcile the package repositories type with Config: change
CompletePackageInterface::{get,set}_repositories from
Vec<IndexMap<String, PhpMixed>> to IndexMap<String, PhpMixed> (PHP's
array<int|string, mixed>), wire setRepositories(config.getRepositories()),
and dump repositories verbatim as a keyed array (matching PHP ArrayDumper)
instead of forcing a list.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/crates/shirabe/src/package/dumper/array_dumper.rs b/crates/shirabe/src/package/dumper/array_dumper.rs
index 3523d58..6a693bd 100644
--- a/crates/shirabe/src/package/dumper/array_dumper.rs
+++ b/crates/shirabe/src/package/dumper/array_dumper.rs
@@ -365,14 +365,10 @@ impl ArrayDumper {
             if !repositories.is_empty() {
                 data.insert(
                     "repositories".to_string(),
-                    PhpMixed::List(
+                    PhpMixed::Array(
                         repositories
                             .into_iter()
-                            .map(|r| {
-                                Box::new(PhpMixed::Array(
-                                    r.into_iter().map(|(k, v)| (k, Box::new(v))).collect(),
-                                ))
-                            })
+                            .map(|(k, v)| (k, Box::new(v)))
                             .collect(),
                     ),
                 );