fix(tests): exclude .claude/worktrees/ from test-file discovery

find-based discovery in run-bats.sh and run-tests.sh picked up test
files nested inside on-disk git worktree checkouts under
.claude/worktrees/ (untracked, created by background agent isolation),
whose submodule-based test_helper isn't initialized there — causing
spurious pre-push failures unrelated to any real change.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

tests/run-bats.sh

@@ -16,6 +16,7 @@ mapfile -t TEST_FILES < <(
     find "$REPO_ROOT" -name "*.bats" \
         -not -path "*/tests/bats/*" \
         -not -path "*/test_helper/*" \
+        -not -path "*/.claude/worktrees/*" \
         | sort
 )
 

tests/run-tests.sh

@@ -33,6 +33,7 @@ run_bats
 mapfile -t SCRIPTS < <(
   find "$SEARCH_ROOT" -name "test-*.sh" \
     -not -path "*/.git/*" \
+    -not -path "*/.claude/worktrees/*" \
     | sort
 )