test(issue-42): the .claude/skills check accepts both local layouts

test_claude_skills_link_resolves_to_agents_skills assumed .claude/skills is
one symlink to .agents/skills. It is local and git-ignored, and a checkout
may instead hold a directory with one link per skill (this workspace's
layout), where every link is correct but the test failed. PR #46's reviews
and suites ran in worktrees, where the directory is absent and the test
skips, so the failure only showed in the main checkout after the merge.

The test now accepts a single link to .agents/skills, or a directory whose
entry for each of the eight skills resolves to the matching
.agents/skills/<skill>. Checked against no link (skip), per-skill links
(pass; the old test fails), one link pointing at the wrong skill (fail) and
a single link (pass).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff

tests/test_issue42_skill_blocks.py

@@ -238,7 +238,16 @@ def test_frontmatter_name_matches_directory(skill):
 
 
 def test_claude_skills_link_resolves_to_agents_skills():
+    """.claude/skills is local (git-ignored) and comes in two layouts: one link
+    to .agents/skills, or a directory with one link per skill. Either way each
+    skill Claude Code loads must be the .agents/skills one."""
     link = REPO / ".claude" / "skills"
     if not link.exists():
         pytest.skip(".claude/skills is untracked; absent in a worktree")
-    assert link.resolve() == SKILLS.resolve()
+    if link.is_symlink():
+        assert link.resolve() == SKILLS.resolve()
+        return
+    for skill in SKILL_NAMES:
+        entry = link / skill
+        assert entry.exists(), f".claude/skills/{skill} is missing"
+        assert entry.resolve() == (SKILLS / skill).resolve(), f".claude/skills/{skill} -> {entry.resolve()}"