🐛 fix(playbook): publish hidden ci test fixes

Unhide the tracked docs and test updates that were left under assume-unchanged, remove the shipped tsl-guide skill, and align the deploy_root-related test coverage with the current external-clone rules.

tests/test_gitattributes_modes.py

@@ -7,6 +7,7 @@ from pathlib import Path
 ROOT = Path(__file__).resolve().parents[1]
 SCRIPT = ROOT / "scripts" / "playbook.py"
 SOURCE_GITATTR = ROOT / ".gitattributes"
+DEFAULT_DEPLOY_ROOT = "docs/standards/playbook"
 
 
 def run_cli(*args, cwd=None):
@@ -33,6 +34,7 @@ class GitattributesModeTests(unittest.TestCase):
         config_body = f"""
 [playbook]
 project_root = \"{root}\"
+deploy_root = "{DEFAULT_DEPLOY_ROOT}"
 
 [sync_standards]
 langs = [\"tsl\"]