Add labs: 59 Python lab scripts + tools + run_lab.sh

- labs/src/: 59 lab scripts covering OA API (Ch2-Ch25 + extras)
  - All C++ references removed, oapy-only documentation
- labs/tools/: debug and test utilities
- labs/run_lab.sh: lab runner with LD_PRELOAD and env setup

labs/tools/_debug_path.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+import sys, os
+__dir__ = os.path.dirname(os.path.abspath(__file__))
+sys.path.insert(0, os.path.join(__dir__, '..', 'build'))
+sys.path.insert(0, __dir__)
+print(f'cwd: {os.getcwd()}')
+print(f'__dir__: {__dir__}')
+print(f'abs path: {os.path.join(__dir__, "lab13_1_dir")}')
+from utils import init_oa, create_lib, make_oa_name, make_oa_string, get_namespace
+init_oa()
+ns = get_namespace('native')
+dirname = os.path.join(__dir__, "lab13_1_dir")
+print(f'Creating at: {dirname}')
+import shutil
+if os.path.exists(dirname):
+    shutil.rmtree(dirname)
+sn_lib, lib = create_lib("lab13_1_lib", dirname)
+print(f'OK')
+lib.close()
+shutil.rmtree(dirname)

labs/tools/test_dmturbo.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+"""Minimal test for oaDMTurbo plugin loading"""
+import sys
+sys.path.insert(0, '/workarea/ai/openclaw/oapy/build')
+sys.path.insert(0, '/workarea/ai/openclaw/oapy')
+
+from oapy._oa import _base, _dm
+
+print("Initializing OA...")
+_base.oaInit()
+
+print("Creating namespace...")
+ns = _base.oaNativeNS()
+
+print("Creating lib name...")
+sn_lib = _base.oaScalarName(ns, "test_dmturbo")
+
+print("Creating lib with oaDMTurbo...")
+try:
+    lib = _dm.oaLib.create(
+        sn_lib,
+        _base.oaString("/tmp/test_dmturbo_lib"),
+        _dm.oaLibMode(_dm.oaLibModeEnum.oacSharedLibMode),
+        _base.oaString("oaDMTurbo"),
+        _dm.oaDMAttrArray(0)
+    )
+    print("SUCCESS: Library created")
+except Exception as e:
+    print(f"FAILED: {e}")