test: add missing implementation-plan test targets

Co-authored-by: Eriyc <50216491+Eriyc@users.noreply.github.com>

tests/bundle_test/verify_hermetic_shape.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+rule_file="$1"
+
+grep -Eq 'def _output_name\(target_name, entry\):' "${rule_file}"
+grep -Eq 'return "\{\}__\{\}\\.js"\.format\(target_name, stem\)' "${rule_file}"
+grep -Eq 'inputs = depset\(' "${rule_file}"
+grep -Eq 'direct = \[entry\] \+ ctx\.files\.data' "${rule_file}"