控制台改为选项卡，并支持封禁节点与下发计算任务。

Co-authored-by: Cursor <cursoragent@cursor.com>

app/models.py

@@ -90,6 +90,7 @@ class WithdrawalStatus(str, enum.Enum):
 
 class TaskStatus(str, enum.Enum):
     PENDING = "pending"
+    PROCESSING = "processing"
     COMPLETED = "completed"
     FAILED = "failed"
     EXPIRED = "expired"
@@ -169,6 +170,7 @@ class ComputeNode(Base):
     generation_locked: Mapped[bool] = mapped_column(default=False, comment="世代已按上报显卡锁定")
     recoverable_stake_amount: Mapped[Decimal | None] = mapped_column(MONEY, comment="尚未返还的质押金")
     is_whitelist: Mapped[bool] = mapped_column(Boolean, default=False, comment="白名单节点，跳过单 IP 限制")
+    is_banned: Mapped[bool] = mapped_column(Boolean, default=False, comment="封禁后拒绝心跳")
     client_ip: Mapped[str | None] = mapped_column(String(64), index=True, comment="最近一次注册或心跳的客户端 IP")
     hardware_fingerprint: Mapped[str | None] = mapped_column(
         String(64), unique=True, comment="显卡 UUID、主板与网卡合成的硬件指纹"
@@ -257,6 +259,7 @@ class ComputeTask(Base):
     deadline_at: Mapped[datetime] = mapped_column(UtcDateTime)
     responded_at: Mapped[datetime | None] = mapped_column(UtcDateTime)
     success: Mapped[bool | None] = mapped_column()
+    result: Mapped[dict | None] = mapped_column(JSON, comment="节点回传的任务结果")
 
     node: Mapped[ComputeNode] = relationship(back_populates="tasks")