fix(resolver): apply root "X as Y" aliases via pool second pass

Mirrors Composer's `RootPackageLoader::extractAliases` +
`PoolBuilder::loadPackage` flow: strip the `as` clause from each root
require so the SAT side sees only the LEFT-hand constraint, and after
every package is loaded run a second pass that materializes an alias
entry for any input matching `(name, version_normalized)`. Locked-only
packages in a partial update are excluded via a new
`ResolveRequest::locked_package_names` so they don't pick up the alias
(`propagateUpdate=false` in Composer).

Two adjacent fixes uncovered while making `install_aliased_alias`
green:
- `Version::cmp` treated unnamed wildcard branches (`1.0.x-dev`,
  `is_dev_branch=true && name=None`) as below every numeric version.
  They are semantically the same as the four-segment `*-dev` form
  Composer's `normalizeBranch` emits, so let only *named* branches
  take the shortcut.
- `Constraint::Exact` / `NotEqual` used the derived `==`, which
  compared `is_dev_branch` field-by-field and missed the
  wildcard/numeric equivalence. Switch to `cmp` so both forms count
  as equal.
- `Pool::matches_package` now falls back to parsing `pretty_version`
  when the `version` parse doesn't match the constraint, so a
  `dev-master` query lines up with a pool entry stored as the
  internal `9999999.x.x.x-dev` expansion.

Net effect on installer fixtures: `install_aliased_alias` newly
green, plus `aliased_priority`, `aliased_priority_conflicting`, and
`install_dev_using_dist` come along for the ride.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/crates/mozart/src/commands/require.rs b/crates/mozart/src/commands/require.rs
index 97d6b02..6a2917b 100644
--- a/crates/mozart/src/commands/require.rs
+++ b/crates/mozart/src/commands/require.rs
@@ -662,6 +662,7 @@ pub async fn execute(
             .iter()
             .map(|(k, v)| (k.clone(), v.clone()))
             .collect(),
+        locked_package_names: indexmap::IndexSet::new(),
     };
 
     // Print header messages
@@ -1029,6 +1030,7 @@ mod tests {
     #[tokio::test]
     #[ignore]
     async fn test_require_full_e2e() {
+        use indexmap::IndexSet;
         use mozart_core::package::RawPackageData;
         use mozart_registry::lockfile::{LockFileGenerationRequest, generate_lock_file};
 
@@ -1061,6 +1063,7 @@ mod tests {
             root_provide: IndexMap::new(),
             root_replace: IndexMap::new(),
             root_conflict: IndexMap::new(),
+            locked_package_names: IndexSet::new(),
         };
 
         let resolved = resolver::resolve(&request)
@@ -1094,6 +1097,7 @@ mod tests {
     #[tokio::test]
     #[ignore]
     async fn test_require_no_install_writes_lock_only() {
+        use indexmap::IndexSet;
         use mozart_core::package::RawPackageData;
         use tempfile::tempdir;
 
@@ -1133,6 +1137,7 @@ mod tests {
             root_provide: IndexMap::new(),
             root_replace: IndexMap::new(),
             root_conflict: IndexMap::new(),
+            locked_package_names: IndexSet::new(),
         };
 
         let resolved = resolver::resolve(&request)