fix(policy): prefer replaced original over replacer in cross-name pick

Mirrors the `replaces()` shortcut in Composer's
`DefaultPolicy::compareByPriority` (the cross-package
`ignoreReplace=false` pass). When two candidates with different names
both satisfy a request — say `update a/installed` finds the real
`a/installed` package alongside an `a/replacer` declaring
`replace: { "a/installed": "..." }` — the policy now picks the
replaced original. Without this, the comparison falls through to the
package-id tie-break and silently lands on whichever entry was
inserted first (here, the replacer with the wrong source ref).

Net effect on installer fixtures: `update_dev_ignores_providers`
newly green.

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

0 files changed, 0 insertions, 0 deletions