完善部分平台治理功能，及修改看板缺陷

backend/app/modules/gpu/router.py

@@ -0,0 +1,77 @@
+"""GPU 算力分配管理路由。"""
+from __future__ import annotations
+
+from typing import Any
+
+from fastapi import APIRouter, Body, Depends, Request
+
+from app.api.v1.endpoints.platform import ok, fail
+from app.core.auth import get_current_user, is_admin
+from app.db.platform_store import get_platform_store
+
+router = APIRouter(prefix="/compute", tags=["gpu-assignment"])
+
+
+def _actor_id(request: Request) -> str | None:
+    auth = request.headers.get("Authorization", "")
+    token = auth.replace("Bearer ", "").strip()
+    if token.startswith("platform-token-"):
+        return token[len("platform-token-"):]
+    return None
+
+
+@router.get("/gpu-assignments")
+def list_assignments(current_user: dict = Depends(get_current_user)) -> dict[str, Any]:
+    """查看全部分配关系（仅 admin）。"""
+    if not is_admin(current_user):
+        raise fail(403, "admin permission required")
+    return ok(get_platform_store().gpu_assignments())
+
+
+@router.post("/gpu-assignments")
+def assign_gpus(
+    payload: dict[str, Any] = Body(...),
+    request: Request = None,
+    current_user: dict = Depends(get_current_user),
+) -> dict[str, Any]:
+    """批量分配 GPU（仅 admin）。body: { assignments: [{ node_id, gpu_index, user_id }] }"""
+    if not is_admin(current_user):
+        raise fail(403, "admin permission required")
+    assignments = payload.get("assignments") or []
+    if not assignments:
+        raise fail(400, "assignments 不能为空")
+    actor = _actor_id(request) if request else None
+    result = get_platform_store().assign_gpus(assignments, assigned_by=actor)
+    get_platform_store().record_audit(
+        action="gpu.assign",
+        actor_id=actor,
+        target_type="gpu",
+        detail=f"count={len(assignments)}",
+    )
+    return ok(result)
+
+
+@router.delete("/gpu-assignments/{assignment_id}")
+def unassign_gpu(
+    assignment_id: str,
+    request: Request = None,
+    current_user: dict = Depends(get_current_user),
+) -> dict[str, Any]:
+    """撤销 GPU 分配（仅 admin）。"""
+    if not is_admin(current_user):
+        raise fail(403, "admin permission required")
+    get_platform_store().unassign_gpu(assignment_id)
+    actor = _actor_id(request) if request else None
+    get_platform_store().record_audit(
+        action="gpu.unassign",
+        actor_id=actor,
+        target_type="gpu",
+        target_id=assignment_id,
+    )
+    return ok({"deleted": assignment_id})
+
+
+@router.get("/my-gpus")
+def my_gpus(current_user: dict = Depends(get_current_user)) -> dict[str, Any]:
+    """查看当前用户可用的 GPU 列表。"""
+    return ok(get_platform_store().gpu_assignments_for_user(current_user["id"]))