refactor(core): decouple actors and remove workflow templates (#67)

Removes the deprecated `workflow_template` concept entirely across both backend API routers, internal logic handling within the `supervisory_node` and `consciousness_node`, and front-end components. Enables `consciousness_node` to work autonomously.

Also refactors core package structure to enforce the "one python package, one Ray Actor" architectural rule. `GlobalWorkflowManager`, `WorkflowRunningEngine`, `PostgresDatabase`, and `WorkerCluster` have been moved to their own top-level decoupled package directories with properly exported `__init__.py` modules. Test suites have been relocated and import paths updated across the system.

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: zhaoxi826 <198742034+zhaoxi826@users.noreply.github.com>

pretor/core/database/table/provider.py

@@ -17,9 +17,11 @@ from typing import List
 from sqlalchemy import Column, JSON
 from typing import Optional
 
+
 class Provider(SQLModel, table=True):
     """Provider 核心组件类。
-    这是一个模型/服务提供商适配器类，屏蔽了外部不同供应商（如 OpenAI、Anthropic 等）的底层 API 差异。它负责标准化参数组装、网络请求发送、鉴权处理以及响应结构的反序列化。    """
+    这是一个模型/服务提供商适配器类，屏蔽了外部不同供应商（如 OpenAI、Anthropic 等）的底层 API 差异。它负责标准化参数组装、网络请求发送、鉴权处理以及响应结构的反序列化。"""
+
     __tablename__ = "provider"
     provider_id: str = Field(primary_key=True)
     provider_title: str = Field(index=True)
@@ -31,4 +33,4 @@ class Provider(SQLModel, table=True):
     provider_models: List[str] = Field(sa_column=Column(JSON))
 
     provider_owner: str
-    is_active: bool = Field(default=True, description="该服务商节点是否在线/启用")
+    is_active: bool = Field(default=True, description="该服务商节点是否在线/启用")