fix(kyberforge): fix bats SCRIPT path and clarify test helper install location

Both validate.bats and new-skill.bats constructed SCRIPT using
$(dirname "$BATS_TEST_FILENAME"), which resolves to tests/ — causing
every test to fail with file-not-found. Fixed to use
$BATS_TEST_DIRNAME/../scripts/ to reach the actual scripts/ directory.

Also clarifies that bats-support/bats-assert must be installed from the
repo root (not the skill root) to match where the tests load them from,
and adds text language tags to three output-template code blocks in
skill-audit's SKILL.md.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/kyberforge/skills/skill-audit/tests/README.md

@@ -5,18 +5,20 @@ Test files for scripts bundled with this skill.
 ## Dependencies
 
 Tests require [bats-support](https://github.com/bats-core/bats-support) and
-[bats-assert](https://github.com/bats-core/bats-assert) installed under
-`tests/test_helper/`:
+[bats-assert](https://github.com/bats-core/bats-assert). The test files load
+helpers from the repo root's `tests/test_helper/`.
+
+From the repo root:
 
 ```bash
 git clone https://github.com/bats-core/bats-support tests/test_helper/bats-support
 git clone https://github.com/bats-core/bats-assert tests/test_helper/bats-assert
 ```
 
-Run all tests:
+Run all tests for this skill (from the repo root):
 
 ```bash
-bats tests/
+bats plugins/kyberforge/skills/skill-audit/tests/
 ```
 
 ## Files

plugins/kyberforge/skills/skill-audit/tests/validate.bats

@@ -5,7 +5,7 @@ setup() {
     load "$REPO_ROOT/tests/test_helper/bats-support/load"
     load "$REPO_ROOT/tests/test_helper/bats-assert/load"
 
-    SCRIPT="$(cd "$(dirname "$BATS_TEST_FILENAME")" && pwd)/validate.sh"
+    SCRIPT="$(cd "$BATS_TEST_DIRNAME/../scripts" && pwd)/validate.sh"
     TMPDIR="$(mktemp -d)"
 
     # Helper: create a minimal valid skill directory