style: 项目重构

1.项目改名为kilostar（千星）
2.后端部分进行大规模重构
3.node功能进行大规模重新设计

kilostar/core/postgres_database/model/provider.py

@@ -0,0 +1,44 @@
+#  Copyright 2026 zhaoxi826
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+from typing import List, Optional
+from sqlalchemy import String, Text, Boolean, text
+from sqlalchemy.dialects.postgresql import JSONB  # 针对供应商模型列表优化
+from sqlalchemy.orm import Mapped, mapped_column
+from .base import BaseDataModel
+
+
+class ProviderModel(BaseDataModel):
+    """
+    Provider 物理模型。
+    作为模型/服务提供商适配器，标准化不同供应商（OpenAI, Anthropic 等）的配置。
+    """
+    __tablename__ = "provider"
+    provider_id: Mapped[str] = mapped_column(String(64), primary_key=True)
+    provider_title: Mapped[str] = mapped_column(String(100), index=True, nullable=False)
+    provider_type: Mapped[str] = mapped_column(String(50), nullable=False)
+    provider_url: Mapped[Optional[str]] = mapped_column(Text)
+    provider_apikey: Mapped[Optional[str]] = mapped_column(Text)
+    provider_models: Mapped[List[str]] = mapped_column(
+        JSONB,
+        default=list,
+        server_default=text("'[]'::jsonb")
+    )
+    provider_owner: Mapped[str] = mapped_column(String(64), index=True)
+    is_active: Mapped[bool] = mapped_column(
+        Boolean,
+        default=True,
+        server_default=text("true"),
+        comment="该服务商节点是否在线/启用"
+    )