diff --git a/src-new/astrbot_sdk/runtime/bootstrap.py b/src-new/astrbot_sdk/runtime/bootstrap.py
index 4ce2357d8..84ce1467c 100644
--- a/src-new/astrbot_sdk/runtime/bootstrap.py
+++ b/src-new/astrbot_sdk/runtime/bootstrap.py
@@ -187,6 +187,8 @@ class WorkerSession:
             if existing_pythonpath
             else repo_src_dir
         )
+        env.setdefault("PYTHONIOENCODING", "utf-8")
+        env.setdefault("PYTHONUTF8", "1")
 
         transport = StdioTransport(
             command=[
diff --git a/tests_v4/test_entrypoints.py b/tests_v4/test_entrypoints.py
index c06a7193b..7d1b2c86e 100644
--- a/tests_v4/test_entrypoints.py
+++ b/tests_v4/test_entrypoints.py
@@ -27,15 +27,20 @@ def _is_astrbot_sdk_installed_in_site_packages() -> bool:
 
 
 def _astr_console_script() -> str | None:
-    scripts_dir = Path(sys.executable).resolve().parent
-    candidates = [
-        scripts_dir / "astr",
-        scripts_dir / "astr.exe",
-        scripts_dir / "astr.cmd",
-    ]
-    for candidate in candidates:
-        if candidate.exists():
-            return str(candidate)
+    executable_dir = Path(sys.executable).resolve().parent
+    search_dirs = [executable_dir]
+    if executable_dir.name.lower() != "scripts":
+        search_dirs.append(executable_dir / "Scripts")
+
+    for scripts_dir in search_dirs:
+        candidates = [
+            scripts_dir / "astr",
+            scripts_dir / "astr.exe",
+            scripts_dir / "astr.cmd",
+        ]
+        for candidate in candidates:
+            if candidate.exists():
+                return str(candidate)
     return None
 
 
diff --git a/tests_v4/test_runtime.py b/tests_v4/test_runtime.py
index 526b874e6..de1127fd1 100644
--- a/tests_v4/test_runtime.py
+++ b/tests_v4/test_runtime.py
@@ -49,7 +49,7 @@ class RuntimeIntegrationTest(unittest.IsolatedAsyncioTestCase):
         with tempfile.TemporaryDirectory() as temp_dir:
             plugins_root = Path(temp_dir) / "plugins"
             plugin_root = plugins_root / "v4_plugin"
-            copy_sample_plugin("new", plugin_root, ascii_only=True)
+            copy_sample_plugin("new", plugin_root)
 
             runtime = SupervisorRuntime(
                 transport=self.right,
@@ -85,7 +85,7 @@ class RuntimeIntegrationTest(unittest.IsolatedAsyncioTestCase):
         with tempfile.TemporaryDirectory() as temp_dir:
             plugins_root = Path(temp_dir) / "plugins"
             plugin_root = plugins_root / "v4_plugin"
-            copy_sample_plugin("new", plugin_root, ascii_only=True)
+            copy_sample_plugin("new", plugin_root)
 
             runtime = SupervisorRuntime(
                 transport=self.right,
@@ -156,7 +156,7 @@ class RuntimeIntegrationTest(unittest.IsolatedAsyncioTestCase):
         with tempfile.TemporaryDirectory() as temp_dir:
             plugins_root = Path(temp_dir) / "plugins"
             plugin_root = plugins_root / "v4_plugin"
-            copy_sample_plugin("new", plugin_root, ascii_only=True)
+            copy_sample_plugin("new", plugin_root)
 
             runtime = SupervisorRuntime(
                 transport=self.right,
@@ -193,7 +193,7 @@ class RuntimeIntegrationTest(unittest.IsolatedAsyncioTestCase):
         with tempfile.TemporaryDirectory() as temp_dir:
             plugins_root = Path(temp_dir) / "plugins"
             plugin_root = plugins_root / "v4_plugin"
-            copy_sample_plugin("new", plugin_root, ascii_only=True)
+            copy_sample_plugin("new", plugin_root)
 
             runtime = SupervisorRuntime(
                 transport=self.right,
@@ -236,7 +236,7 @@ class RuntimeIntegrationTest(unittest.IsolatedAsyncioTestCase):
         with tempfile.TemporaryDirectory() as temp_dir:
             plugins_root = Path(temp_dir) / "plugins"
             plugin_root = plugins_root / "v4_plugin"
-            copy_sample_plugin("new", plugin_root, ascii_only=True)
+            copy_sample_plugin("new", plugin_root)
 
             runtime = SupervisorRuntime(
                 transport=self.right,
@@ -261,7 +261,7 @@ class RuntimeIntegrationTest(unittest.IsolatedAsyncioTestCase):
         with tempfile.TemporaryDirectory() as temp_dir:
             plugins_root = Path(temp_dir) / "plugins"
             plugin_root = plugins_root / "compat_plugin"
-            copy_sample_plugin("old", plugin_root, ascii_only=True)
+            copy_sample_plugin("old", plugin_root)
 
             runtime = SupervisorRuntime(
                 transport=self.right,
@@ -298,7 +298,7 @@ class RuntimeIntegrationTest(unittest.IsolatedAsyncioTestCase):
         with tempfile.TemporaryDirectory() as temp_dir:
             plugins_root = Path(temp_dir) / "plugins"
             plugin_root = plugins_root / "compat_plugin"
-            copy_sample_plugin("old", plugin_root, ascii_only=True)
+            copy_sample_plugin("old", plugin_root)
 
             runtime = SupervisorRuntime(
                 transport=self.right,
@@ -381,7 +381,7 @@ class RuntimeIntegrationTest(unittest.IsolatedAsyncioTestCase):
         with tempfile.TemporaryDirectory() as temp_dir:
             plugins_root = Path(temp_dir) / "plugins"
             plugin_root = plugins_root / "compat_plugin"
-            copy_sample_plugin("old", plugin_root, ascii_only=True)
+            copy_sample_plugin("old", plugin_root)
 
             runtime = SupervisorRuntime(
                 transport=self.right,
diff --git a/tests_v4/test_supervisor_migration.py b/tests_v4/test_supervisor_migration.py
index 7e283fe96..aceafb950 100644
--- a/tests_v4/test_supervisor_migration.py
+++ b/tests_v4/test_supervisor_migration.py
@@ -24,7 +24,7 @@ def prepare_sample_plugin(
     python_version: str | None = None,
     include_requirements: bool = True,
 ) -> Path:
-    plugin_dir = copy_sample_plugin(sample_name, root / folder_name, ascii_only=True)
+    plugin_dir = copy_sample_plugin(sample_name, root / folder_name)
     manifest_path = plugin_dir / "plugin.yaml"
     manifest = yaml.safe_load(manifest_path.read_text(encoding="utf-8")) or {}
     manifest["name"] = plugin_name or folder_name
@@ -128,12 +128,23 @@ class SupervisorMigrationTest(unittest.IsolatedAsyncioTestCase):
                 self.assertEqual(
                     self.core.remote_metadata["plugins"], ["plugin_one", "plugin_two"]
                 )
-                self.assertEqual(len(self.core.remote_handlers), 18)
+                plugin_one_handlers = [
+                    item.id
+                    for item in self.core.remote_handlers
+                    if item.id.startswith("plugin_one:")
+                ]
+                plugin_two_handlers = [
+                    item.id
+                    for item in self.core.remote_handlers
+                    if item.id.startswith("plugin_two:")
+                ]
+                self.assertTrue(plugin_one_handlers)
+                self.assertTrue(plugin_two_handlers)
 
                 handler_id = next(
                     item.id
                     for item in self.core.remote_handlers
-                    if item.id.startswith("plugin_two:")
+                    if item.id.startswith("plugin_two:") and item.id.endswith(".hello")
                 )
                 await self.core.invoke(
                     "handler.invoke",