refactor: using initializer to replace hardcoded dify cli initialization

api/core/virtual_environment/__base/initializer.py

@@ -1,44 +0,0 @@
-"""
-Sandbox initializer protocol for post-construction initialization.
-
-This module defines the interface for initializers that can perform
-setup tasks on newly created VirtualEnvironment instances.
-"""
-
-from abc import ABC, abstractmethod
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from core.virtual_environment.__base.virtual_environment import VirtualEnvironment
-
-
-class SandboxInitializer(ABC):
-    """
-    Abstract base class for sandbox post-construction initialization.
-
-    Initializers are called by VMFactory after a VirtualEnvironment is created.
-    They allow decoupling of environment creation from environment setup tasks
-    like uploading binaries, configuring tools, or setting up directories.
-
-    Example:
-        class MyInitializer(SandboxInitializer):
-            def initialize(self, env: VirtualEnvironment) -> None:
-                env.upload_file("/path/to/file", BytesIO(b"content"))
-    """
-
-    @abstractmethod
-    def initialize(self, env: "VirtualEnvironment") -> None:
-        """
-        Perform initialization on a newly created sandbox.
-
-        Called by VMFactory after VirtualEnvironment._construct_environment().
-        Implementations should be idempotent where possible.
-
-        Args:
-            env: The virtual environment to initialize.
-
-        Raises:
-            Exception: If initialization fails. The caller is responsible
-                for handling cleanup.
-        """
-        ...