fix(tests): make runner worktree exclusions relative to the search root

Both runners excluded */.claude/worktrees/* by absolute path, which
filtered out every test when the repo itself is a Claude worktree.
Search from inside the root so only nested worktrees are skipped.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tests/run-tests.sh

@@ -151,11 +151,17 @@ run_bats
 # such file exists today -- the skill suites are all .bats, where run-bats.sh
 # already hit this -- so the exclusion is symmetry with its sibling, kept here
 # so the first shell suite added under a skill does not reintroduce it.
+#
+# The walk runs from inside SEARCH_ROOT so the exclusions match paths RELATIVE to
+# it. Matched against absolute paths, `*/.claude/worktrees/*` excluded every
+# suite whenever the checkout itself was a Claude worktree
+# (<repo>/.claude/worktrees/<name>/); relative, it still skips worktrees nested
+# below the root. The `./` prefix is swapped back for SEARCH_ROOT afterwards.
 SCRIPTS=()
 while IFS= read -r script; do
-  SCRIPTS+=("$script")
+  SCRIPTS+=("$SEARCH_ROOT/${script#./}")
 done < <(
-  find "$SEARCH_ROOT" -name "test-*.sh" \
+  cd "$SEARCH_ROOT" && find . -name "test-*.sh" \
     -not -path "*/.git/*" \
     -not -path "*/.claude/worktrees/*" \
     -not -path "*/apm_modules/*" \