feat: 工具系统迁移 + 重型插件骨架 + 前端交互增强

- 工具系统从 kilostar/plugin/tool_plugin/ 迁移到 data/toolset/（manifest.json 声明式）
- 新增 plugin_runtime 模块：BaseOrganization / GlobalPluginManager / loader / tool_bridge
- 新增 org_task + org_task_event 表及 DAO（alembic 0009）
- 新增 /api/v1/plugin 路由（submit/status/stream/install/reload）
- 新增 data/plugin/example_dept 示例重型插件
- regulatory_node 支持聊天历史上下文注入
- send_file 改为 artifact 存盘 + SSE 推送下载链接
- 前端 WorkflowFileCard 组件 + ToolSettings README 渲染
- utils 整理：合并 access/role_check、standalone_proxy→ray_compat、删除废弃模块
- 项目结构文档移至 docs/STRUCTURE.md 并详细展开

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

kilostar/api/plugin.py

@@ -0,0 +1,108 @@
+from __future__ import annotations
+
+from typing import Optional
+from fastapi import APIRouter, Depends, HTTPException
+from fastapi.responses import StreamingResponse
+from pydantic import BaseModel
+
+from kilostar.utils.access import Accessor, TokenData
+from kilostar.utils.ray_hook import ray_actor_hook
+
+plugin_router = APIRouter(prefix="/api/v1/plugin", tags=["plugin"])
+
+
+class SubmitRequest(BaseModel):
+    org_name: str
+    task_description: str
+    context: Optional[dict] = None
+
+
+@plugin_router.post("/submit")
+async def submit_task(
+    req: SubmitRequest,
+    token_data: TokenData = Depends(Accessor.get_current_user),
+):
+    pm = ray_actor_hook("global_plugin_manager").global_plugin_manager
+    plugins = await pm.list_plugins.remote()
+    if req.org_name not in plugins:
+        raise HTTPException(404, f"Plugin '{req.org_name}' not found")
+
+    org = ray_actor_hook(f"org_{req.org_name}").get(f"org_{req.org_name}")
+    ctx = req.context or {}
+    ctx["user"] = token_data.username
+    task_id = await org.submit.remote(req.task_description, ctx)
+    return {"task_id": task_id}
+
+
+@plugin_router.get("/task/{task_id}")
+async def get_task_status(
+    task_id: str,
+    token_data: TokenData = Depends(Accessor.get_current_user),
+):
+    db = ray_actor_hook("postgres_database").postgres_database
+    task = await db.get_org_task.remote(task_id)
+    if not task:
+        raise HTTPException(404, "Task not found")
+    return task
+
+
+@plugin_router.get("/task/{task_id}/events")
+async def get_task_events(
+    task_id: str,
+    token_data: TokenData = Depends(Accessor.get_current_user),
+):
+    db = ray_actor_hook("postgres_database").postgres_database
+    events = await db.query_org_events.remote(task_id)
+    return {"events": events}
+
+
+@plugin_router.get("/task/{task_id}/stream")
+async def stream_task(
+    task_id: str,
+    token_data: TokenData = Depends(Accessor.get_current_user),
+):
+    import asyncio
+
+    org_name = None
+    db = ray_actor_hook("postgres_database").postgres_database
+    task = await db.get_org_task.remote(task_id)
+    if not task:
+        raise HTTPException(404, "Task not found")
+    org_name = task["org_name"]
+
+    org = ray_actor_hook(f"org_{org_name}").get(f"org_{org_name}")
+
+    async def _generate():
+        async for event in await org.stream.remote(task_id):
+            yield f"data: {event}\n\n"
+
+    return StreamingResponse(_generate(), media_type="text/event-stream")
+
+
+@plugin_router.get("/list")
+async def list_plugins(
+    token_data: TokenData = Depends(Accessor.get_current_user),
+):
+    pm = ray_actor_hook("global_plugin_manager").global_plugin_manager
+    plugins = await pm.list_plugins.remote()
+    return {"plugins": plugins}
+
+
+@plugin_router.post("/install")
+async def install_plugin(
+    name: str,
+    token_data: TokenData = Depends(Accessor.get_current_user),
+):
+    pm = ray_actor_hook("global_plugin_manager").global_plugin_manager
+    await pm.install.remote(name)
+    return {"status": "ok", "name": name}
+
+
+@plugin_router.post("/reload/{name}")
+async def reload_plugin(
+    name: str,
+    token_data: TokenData = Depends(Accessor.get_current_user),
+):
+    pm = ray_actor_hook("global_plugin_manager").global_plugin_manager
+    await pm.reload.remote(name)
+    return {"status": "ok", "name": name}