feat: 实现清理失效账号安全方案（包含预览、SSE测试、安全删除以及本地标记清空）

backend/app/routers/websites.py

@@ -38,6 +38,9 @@ from app.schemas.website import (
     WebsiteBatchSyncResponse,
     OrganizeGroupsItem,
     OrganizeGroupsResponse,
+    CleanupInvalidAccountsItem,
+    CleanupInvalidAccountsPreviewResponse,
+    CleanupInvalidAccountsExecuteResponse,
 )
 
 from app.services.website_client import Sub2ApiWebsiteClient, _extract_id
@@ -865,6 +868,230 @@ def import_upstream_keys_as_accounts(
     )
 
 
+def _get_cleanup_candidates(db: Session, website: Website, c: Sub2ApiWebsiteClient) -> dict[str, dict[str, Any]] | None:
+    import re
+    # 1. Fetch remote accounts
+    remote_accounts = c.list_accounts()
+    if remote_accounts is None:
+        return None
+
+    remote_accounts_map = {}
+    for acc in remote_accounts:
+        aid = c.extract_id(acc)
+        if aid:
+            remote_accounts_map[aid] = acc
+
+    candidates = {}
+
+    # 2. Condition A: Local orphaned keys
+    orphaned_keys = db.query(UpstreamGeneratedKey).filter(
+        UpstreamGeneratedKey.status == "orphaned",
+        UpstreamGeneratedKey.imported_website_id == website.id,
+        UpstreamGeneratedKey.imported_account_id.isnot(None),
+    ).all()
+
+    for key in orphaned_keys:
+        acc_id = key.imported_account_id
+        remote_acc = remote_accounts_map.get(acc_id)
+        acc_name = remote_acc.get("name") if remote_acc else key.key_name
+        upstream = db.query(Upstream).filter(Upstream.id == key.upstream_id).first()
+        upstream_name = upstream.name if upstream else None
+
+        candidates[acc_id] = {
+            "account_id": acc_id,
+            "account_name": acc_name,
+            "upstream_key_id": key.id,
+            "upstream_name": upstream_name,
+            "source_group_name": key.group_name,
+            "reason": "本地上游 Key 已被标记为 orphaned",
+            "is_local_orphan": True,
+            "db_key": key,
+        }
+
+    # 3. Condition B: Remote SmartUp-marked orphan accounts
+    pattern = re.compile(r"Imported by SmartUp from upstream key #(\d+)")
+    for aid, acc in remote_accounts_map.items():
+        if aid in candidates:
+            continue
+
+        key_id = None
+        for field in ("notes", "description", "remark"):
+            val = acc.get(field)
+            if val and isinstance(val, str):
+                match = pattern.search(val)
+                if match:
+                    key_id = int(match.group(1))
+                    break
+        if key_id is None:
+            continue
+
+        key = db.query(UpstreamGeneratedKey).filter(
+            UpstreamGeneratedKey.id == key_id
+        ).first()
+
+        is_orphan = False
+        reason = ""
+        if not key:
+            is_orphan = True
+            reason = "本地找不到对应的上游 Key 记录"
+        elif key.imported_website_id != website.id or key.imported_account_id != aid:
+            is_orphan = True
+            reason = "本地 Key 记录存在，但未关联到当前目标站的当前账号"
+        elif key.status == 'orphaned':
+            is_orphan = True
+            reason = "本地上游 Key 已被标记为 orphaned"
+
+        if is_orphan:
+            upstream_name = None
+            source_group_name = None
+            if key:
+                upstream = db.query(Upstream).filter(Upstream.id == key.upstream_id).first()
+                upstream_name = upstream.name if upstream else None
+                source_group_name = key.group_name
+
+            candidates[aid] = {
+                "account_id": aid,
+                "account_name": acc.get("name") or aid,
+                "upstream_key_id": key_id,
+                "upstream_name": upstream_name,
+                "source_group_name": source_group_name,
+                "reason": reason,
+                "is_local_orphan": False,
+                "db_key": key,
+            }
+
+    return candidates
+
+
+def _test_candidate_account(c: Sub2ApiWebsiteClient, account_id: str) -> tuple[str, bool, str]:
+    """返回 (test_status, cleanup_allowed, message)"""
+    try:
+        res = c.test_account(account_id)
+        status = res.get("status")
+        msg = res.get("message", "")
+        if status == "404":
+            return "404", True, msg
+        elif status == "success":
+            return "test_passed", False, msg
+        elif status == "failed":
+            return "failed", True, msg
+        else:
+            return "test_unknown", False, msg
+    except Exception as e:
+        return "test_unknown", False, f"测试时发生异常: {e}"
+
+
+@router.post("/api/websites/{wid}/accounts/cleanup-invalid/preview", response_model=CleanupInvalidAccountsPreviewResponse)
+def preview_cleanup_invalid_accounts(wid: int, db: Session = Depends(get_db), _=Depends(get_current_user)):
+    website = db.query(Website).filter(Website.id == wid).first()
+    if not website:
+        raise HTTPException(404, "website not found")
+
+    with _client(website) as c:
+        candidates = _get_cleanup_candidates(db, website, c)
+        if candidates is None:
+            return CleanupInvalidAccountsPreviewResponse(
+                success=False,
+                message="拉取远端账号列表失败，无法执行清理",
+                items=[]
+            )
+
+        items = []
+        for aid, cand in candidates.items():
+            test_status, cleanup_allowed, test_msg = _test_candidate_account(c, aid)
+            items.append(CleanupInvalidAccountsItem(
+                account_id=cand["account_id"],
+                account_name=cand["account_name"],
+                upstream_key_id=cand["upstream_key_id"],
+                upstream_name=cand["upstream_name"],
+                source_group_name=cand["source_group_name"],
+                reason=cand["reason"],
+                test_status=test_status,
+                cleanup_allowed=cleanup_allowed,
+                action_status="previewed",
+                message=test_msg,
+            ))
+
+        return CleanupInvalidAccountsPreviewResponse(
+            success=True,
+            message=f"已成功加载 {len(items)} 个失效账号候选对象",
+            items=items
+        )
+
+
+@router.post("/api/websites/{wid}/accounts/cleanup-invalid/execute", response_model=CleanupInvalidAccountsExecuteResponse)
+def execute_cleanup_invalid_accounts(wid: int, db: Session = Depends(get_db), _=Depends(get_current_user)):
+    website = db.query(Website).filter(Website.id == wid).first()
+    if not website:
+        raise HTTPException(404, "website not found")
+
+    with _client(website) as c:
+        candidates = _get_cleanup_candidates(db, website, c)
+        if candidates is None:
+            return CleanupInvalidAccountsExecuteResponse(
+                success=False,
+                message="拉取远端账号列表失败，无法执行清理",
+                items=[]
+            )
+
+        items = []
+        for aid, cand in candidates.items():
+            test_status, cleanup_allowed, test_msg = _test_candidate_account(c, aid)
+
+            action_status = "skipped"
+            msg = "测试通过或未知，已跳过删除"
+
+            if cleanup_allowed:
+                try:
+                    del_res = c.delete_account(aid)
+                    status = del_res.get("status")
+                    del_msg = del_res.get("message", "")
+
+                    if status in ("deleted", "already_deleted"):
+                        action_status = status
+                        msg = del_msg
+
+                        # Clear database flags if it's a local orphan key
+                        if cand["is_local_orphan"] and cand["db_key"]:
+                            key = cand["db_key"]
+                            key.imported_website_id = None
+                            key.imported_account_id = None
+                            key.imported_at = None
+                            key.imported_target_group_id = None
+                            key.imported_target_group_name = None
+                            db.add(key)
+                    else:
+                        action_status = "failed"
+                        msg = f"删除失败: {del_msg}"
+                except Exception as e:
+                    action_status = "failed"
+                    msg = f"删除失败: {e}"
+            else:
+                msg = f"账号状态正常，无需清理 ({test_msg})"
+
+            items.append(CleanupInvalidAccountsItem(
+                account_id=cand["account_id"],
+                account_name=cand["account_name"],
+                upstream_key_id=cand["upstream_key_id"],
+                upstream_name=cand["upstream_name"],
+                source_group_name=cand["source_group_name"],
+                reason=cand["reason"],
+                test_status=test_status,
+                cleanup_allowed=cleanup_allowed,
+                action_status=action_status,
+                message=msg,
+            ))
+
+        db.commit()
+
+        deleted_count = sum(1 for item in items if item.action_status in ("deleted", "already_deleted"))
+        return CleanupInvalidAccountsExecuteResponse(
+            success=True,
+            message=f"清理执行完毕，成功处理了 {deleted_count} 个失效账号",
+            items=items
+        )
+
+
 @router.post("/api/websites/{wid}/groups/organize", response_model=OrganizeGroupsResponse)
 def organize_website_groups(
     wid: int,

backend/app/schemas/website.py

@@ -243,3 +243,28 @@ class OrganizeGroupsResponse(BaseModel):
     success: bool
     message: str
     items: list[OrganizeGroupsItem]
+
+
+class CleanupInvalidAccountsItem(BaseModel):
+    account_id: str
+    account_name: Optional[str] = None
+    upstream_key_id: Optional[int] = None
+    upstream_name: Optional[str] = None
+    source_group_name: Optional[str] = None
+    reason: str
+    test_status: str
+    cleanup_allowed: bool
+    action_status: Optional[str] = None
+    message: str = ""
+
+
+class CleanupInvalidAccountsPreviewResponse(BaseModel):
+    success: bool
+    message: str
+    items: list[CleanupInvalidAccountsItem]
+
+
+class CleanupInvalidAccountsExecuteResponse(BaseModel):
+    success: bool
+    message: str
+    items: list[CleanupInvalidAccountsItem]

backend/app/services/website_client.py

@@ -357,6 +357,82 @@ class Sub2ApiWebsiteClient:
             return None
         return account_id in ids
 
+    def test_account(self, account_id: str, endpoint: str = "/accounts") -> dict[str, Any]:
+        """测试远端账号可用性。利用 SSE 监听 test_complete 事件的 success 状态。
+        若 404，返回 {"status": "404", "cleanup_allowed": True, "message": "账号不存在"}
+        若 timeout / 无法建立连接，返回 {"status": "timeout"/"error", "cleanup_allowed": False}
+        """
+        import json
+        url = self._url(f"{endpoint}/{account_id}/test")
+        headers = self._headers()
+        # Accept text/event-stream since it's an SSE stream
+        headers["Accept"] = "text/event-stream"
+
+        try:
+            with self._client.stream("POST", url, headers=headers) as response:
+                if response.status_code == 404:
+                    return {"status": "404", "cleanup_allowed": True, "message": "账号在远端不存在 (404)"}
+                if response.status_code >= 400:
+                    return {"status": "http_error", "cleanup_allowed": False, "message": f"测试接口返回 HTTP {response.status_code}"}
+
+                # Read SSE stream line by line
+                current_event = None
+                success_value = None
+                has_error_event = False
+
+                for line in response.iter_lines():
+                    if not line:
+                        continue
+                    if line.startswith("event:"):
+                        current_event = line[6:].strip()
+                    elif line.startswith("data:"):
+                        data_str = line[5:].strip()
+                        if current_event == "error":
+                            has_error_event = True
+                        if current_event == "test_complete" or not current_event:
+                            try:
+                                parsed = json.loads(data_str)
+                                if isinstance(parsed, dict):
+                                    if "success" in parsed:
+                                        success_value = parsed["success"]
+                                    elif parsed.get("event") == "test_complete" and "success" in parsed:
+                                        success_value = parsed["success"]
+                            except Exception:
+                                pass
+
+                if success_value is True:
+                    return {"status": "success", "cleanup_allowed": False, "message": "测试成功，账号有效"}
+                elif success_value is False:
+                    return {"status": "failed", "cleanup_allowed": True, "message": "测试失败，账号失效"}
+                elif has_error_event:
+                    return {"status": "error", "cleanup_allowed": False, "message": "测试接口返回了错误事件"}
+                else:
+                    return {"status": "invalid_sse", "cleanup_allowed": False, "message": "未收到有效的测试完成事件"}
+
+        except httpx.TimeoutException as exc:
+            return {"status": "timeout", "cleanup_allowed": False, "message": f"连接超时: {exc}"}
+        except Exception as exc:
+            return {"status": "error", "cleanup_allowed": False, "message": f"请求异常: {exc}"}
+
+    def delete_account(self, account_id: str, endpoint: str = "/accounts") -> dict[str, Any]:
+        """删除目标账号。
+        若 404 视为 already_deleted。
+        """
+        url = self._url(f"{endpoint}/{account_id}")
+        headers = self._headers()
+        try:
+            resp = self._client.request("DELETE", url, headers=headers)
+            if resp.status_code == 404:
+                return {"status": "already_deleted", "message": "账号不存在或已在远端被删除"}
+            resp.raise_for_status()
+            return {"status": "deleted", "message": "账号已删除"}
+        except httpx.HTTPStatusError as exc:
+            if exc.response.status_code == 404:
+                return {"status": "already_deleted", "message": "账号不存在或已在远端被删除"}
+            raise WebsiteError(_friendly_http_error(exc)) from exc
+        except Exception as exc:
+            raise WebsiteError(f"删除账号失败: {exc}") from exc
+
     @staticmethod
     def extract_id(value: Any) -> str:
         return _extract_id(value)

backend/test_cleanup_invalid_accounts.py

@@ -0,0 +1,291 @@
+import json
+import pytest
+import httpx
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.pool import StaticPool
+
+from app.database import Base
+from app.models.upstream import Upstream
+from app.models.upstream_key import UpstreamGeneratedKey
+from app.models.website import Website
+from app.routers.websites import preview_cleanup_invalid_accounts, execute_cleanup_invalid_accounts
+from app.services.website_client import Sub2ApiWebsiteClient
+
+
+@pytest.fixture()
+def db_session():
+    engine = create_engine(
+        "sqlite://",
+        connect_args={"check_same_thread": False},
+        poolclass=StaticPool,
+    )
+    from app.models import admin_user, upstream, snapshot, webhook_config, notification_log, custom_page, website, revoked_token, upstream_key
+    Base.metadata.create_all(bind=engine)
+    TestingSessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+    db = TestingSessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+        Base.metadata.drop_all(bind=engine)
+
+
+class MockResponse:
+    def __init__(self, status_code, lines, raise_exc=None):
+        self.status_code = status_code
+        self._lines = lines
+        self._raise_exc = raise_exc
+
+    def __enter__(self):
+        if self._raise_exc:
+            raise self._raise_exc
+        return self
+
+    def __exit__(self, *args):
+        pass
+
+    def iter_lines(self):
+        return self._lines
+
+
+def mock_stream(status_code, lines, raise_exc=None):
+    def mock_fn(*args, **kwargs):
+        return MockResponse(status_code, lines, raise_exc)
+    return mock_fn
+
+
+def test_website_client_test_account_sse_scenarios(monkeypatch):
+    """测试 Sub2ApiWebsiteClient.test_account 在各种 SSE 场景下的解析和处理。"""
+    c = Sub2ApiWebsiteClient(
+        base_url="http://w1",
+        api_prefix="api/v1",
+        auth_type="bearer",
+        auth_config={"token": "t1"},
+    )
+
+    # 1. success=true
+    monkeypatch.setattr(c._client, "stream", mock_stream(200, ["event: test_complete", "data: {\"success\": true}"]))
+    res = c.test_account("acc1")
+    assert res["status"] == "success"
+    assert res["cleanup_allowed"] is False
+
+    # 2. success=false
+    monkeypatch.setattr(c._client, "stream", mock_stream(200, ["event: test_complete", "data: {\"success\": false}"]))
+    res = c.test_account("acc1")
+    assert res["status"] == "failed"
+    assert res["cleanup_allowed"] is True
+
+    # 3. HTTP 404
+    monkeypatch.setattr(c._client, "stream", mock_stream(404, []))
+    res = c.test_account("acc1")
+    assert res["status"] == "404"
+    assert res["cleanup_allowed"] is True
+
+    # 4. error event
+    monkeypatch.setattr(c._client, "stream", mock_stream(200, ["event: error", "data: \"internal error\""]))
+    res = c.test_account("acc1")
+    assert res["status"] == "error"
+    assert res["cleanup_allowed"] is False
+
+    # 5. 超时
+    monkeypatch.setattr(c._client, "stream", mock_stream(200, [], raise_exc=httpx.TimeoutException("Connection timed out")))
+    res = c.test_account("acc1")
+    assert res["status"] == "timeout"
+    assert res["cleanup_allowed"] is False
+
+    # 6. 非法 SSE (没有 test_complete)
+    monkeypatch.setattr(c._client, "stream", mock_stream(200, ["data: hello world"]))
+    res = c.test_account("acc1")
+    assert res["status"] == "invalid_sse"
+    assert res["cleanup_allowed"] is False
+
+
+def test_cleanup_invalid_preview_and_execute(db_session, monkeypatch):
+    """测试预览与执行清理的完整工作流。
+    - 包含本地 orphaned 键。
+    - 包含远端 SmartUp 备注孤立账号。
+    - 包含无 SmartUp 备注的手工账号（不参与候选）。
+    - 包含测试通过与失败的不同流程分支。
+    """
+    w = Website(
+        name="W1",
+        site_type="sub2api",
+        base_url="http://w1",
+        enabled=True,
+        auth_config_json="{}",
+        timeout_seconds=30
+    )
+    u1 = Upstream(name="U1", base_url="http://u1")
+    db_session.add_all([w, u1])
+    db_session.commit()
+    db_session.refresh(w)
+    db_session.refresh(u1)
+
+    # 1. 本地 orphaned 键 k1：对应的远端账号测试将失败 (可清理)
+    k1 = UpstreamGeneratedKey(
+        upstream_id=u1.id,
+        group_id="G1",
+        group_name="G1-Name",
+        key_name="Key-G1",
+        key_value="sk-g1",
+        status="orphaned",
+        imported_website_id=w.id,
+        imported_account_id="acc-k1",
+        error="original-error-k1"
+    )
+    # 2. 本地 orphaned 键 k2：对应的远端账号测试将成功 (不可清理)
+    k2 = UpstreamGeneratedKey(
+        upstream_id=u1.id,
+        group_id="G2",
+        group_name="G2-Name",
+        key_name="Key-G2",
+        key_value="sk-g2",
+        status="orphaned",
+        imported_website_id=w.id,
+        imported_account_id="acc-k2",
+        error="original-error-k2"
+    )
+    # 3. 本地 imported 正常键 k3（不进入候选）
+    k3 = UpstreamGeneratedKey(
+        upstream_id=u1.id,
+        group_id="G3",
+        group_name="G3-Name",
+        key_name="Key-G3",
+        key_value="sk-g3",
+        status="imported",
+        imported_website_id=w.id,
+        imported_account_id="acc-k3"
+    )
+    db_session.add_all([k1, k2, k3])
+    db_session.commit()
+
+    deleted_accounts = []
+    test_calls = {}
+
+    class MockClient:
+        def __init__(self, **kwargs): pass
+        def __enter__(self): return self
+        def __exit__(self, *a): pass
+
+        def list_accounts(self):
+            # 远端列表：
+            # acc-k1 (Condition A, k1)
+            # acc-k2 (Condition A, k2)
+            # acc-k3 (k3 正常)
+            # acc-orphan-remote (Condition B, notes 带备注，本地不存在关联)
+            # acc-manual (无备注手工账号，notes 没匹配上，不应进候选)
+            return [
+                {"id": "acc-k1", "name": "Acc-K1", "notes": f"Imported by SmartUp from upstream key #{k1.id}"},
+                {"id": "acc-k2", "name": "Acc-K2", "notes": f"Imported by SmartUp from upstream key #{k2.id}"},
+                {"id": "acc-k3", "name": "Acc-K3", "notes": f"Imported by SmartUp from upstream key #{k3.id}"},
+                {"id": "acc-orphan-remote", "name": "Orphan-Remote", "notes": "Imported by SmartUp from upstream key #9999"},
+                {"id": "acc-manual", "name": "Manual-Acc", "notes": "Manually created account"},
+            ]
+
+        def extract_id(self, val):
+            return val.get("id") if isinstance(val, dict) else str(val)
+
+        def test_account(self, account_id):
+            test_calls[account_id] = test_calls.get(account_id, 0) + 1
+            if account_id in ("acc-k1", "acc-orphan-remote"):
+                # 测试失败 -> 可删除
+                return {"status": "failed", "cleanup_allowed": True, "message": "API check failed"}
+            else:
+                # 其他测试成功
+                return {"status": "success", "cleanup_allowed": False, "message": "API check OK"}
+
+        def delete_account(self, account_id):
+            deleted_accounts.append(account_id)
+            return {"status": "deleted", "message": f"Account {account_id} has been deleted"}
+
+    monkeypatch.setattr("app.routers.websites._client", lambda row: MockClient())
+
+    # ── 1. 测试预览 ──
+    preview_res = preview_cleanup_invalid_accounts(wid=w.id, db=db_session)
+    assert preview_res.success is True
+    # 候选账号应为 3 个：acc-k1, acc-k2, acc-orphan-remote (acc-k3 正常, acc-manual 无备注，均不进入候选)
+    items = preview_res.items
+    assert len(items) == 3
+
+    item_k1 = next(i for i in items if i.account_id == "acc-k1")
+    assert item_k1.cleanup_allowed is True
+    assert item_k1.test_status == "failed"
+
+    item_k2 = next(i for i in items if i.account_id == "acc-k2")
+    assert item_k2.cleanup_allowed is False
+    assert item_k2.test_status == "test_passed"
+
+    item_orphan = next(i for i in items if i.account_id == "acc-orphan-remote")
+    assert item_orphan.cleanup_allowed is True
+    assert item_orphan.test_status == "failed"
+    assert item_orphan.upstream_key_id == 9999
+
+    # 确认没有调用过删除
+    assert len(deleted_accounts) == 0
+
+    # ── 2. 测试执行 ──
+    # 重置调用计数
+    test_calls.clear()
+    execute_res = execute_cleanup_invalid_accounts(wid=w.id, db=db_session)
+    assert execute_res.success is True
+
+    # 验证是否重新跑了测试
+    assert "acc-k1" in test_calls
+    assert "acc-k2" in test_calls
+    assert "acc-orphan-remote" in test_calls
+
+    # 验证被删除的账号 (只有测试失败/可清理的才删：acc-k1 和 acc-orphan-remote)
+    assert len(deleted_accounts) == 2
+    assert "acc-k1" in deleted_accounts
+    assert "acc-orphan-remote" in deleted_accounts
+    assert "acc-k2" not in deleted_accounts
+
+    # 验证本地数据库的 DB key 清空逻辑：
+    db_session.refresh(k1)
+    db_session.refresh(k2)
+    db_session.refresh(k3)
+
+    # k1 应该被清空 imported 字段，但保留 status='orphaned' 及原始 error
+    assert k1.imported_website_id is None
+    assert k1.imported_account_id is None
+    assert k1.status == "orphaned"
+    assert k1.error == "original-error-k1"
+
+    # k2 由于测试成功跳过删除，DB 不变
+    assert k2.imported_website_id == w.id
+    assert k2.imported_account_id == "acc-k2"
+    assert k2.status == "orphaned"
+
+
+def test_cleanup_list_accounts_failure(db_session, monkeypatch):
+    """测试 list_accounts() 失败时，整个清理预览与执行直接阻断报错。"""
+    w = Website(
+        name="W1",
+        site_type="sub2api",
+        base_url="http://w1",
+        enabled=True,
+        auth_config_json="{}",
+        timeout_seconds=30
+    )
+    db_session.add(w)
+    db_session.commit()
+
+    class FailClient:
+        def __init__(self, **kwargs): pass
+        def __enter__(self): return self
+        def __exit__(self, *a): pass
+        def list_accounts(self):
+            return None # 模拟获取失败
+
+    monkeypatch.setattr("app.routers.websites._client", lambda row: FailClient())
+
+    preview_res = preview_cleanup_invalid_accounts(wid=w.id, db=db_session)
+    assert preview_res.success is False
+    assert "拉取远端账号列表失败" in preview_res.message
+    assert len(preview_res.items) == 0
+
+    execute_res = execute_cleanup_invalid_accounts(wid=w.id, db=db_session)
+    assert execute_res.success is False
+    assert "拉取远端账号列表失败" in execute_res.message
+    assert len(execute_res.items) == 0

frontend/src/api/index.ts

@@ -330,6 +330,19 @@ export interface OrganizeGroupsItem {
   message: string
 }
 
+export interface CleanupInvalidAccountsItem {
+  account_id: string
+  account_name: string | null
+  upstream_key_id: number | null
+  upstream_name: string | null
+  source_group_name: string | null
+  reason: string
+  test_status: string
+  cleanup_allowed: boolean
+  action_status: string | null
+  message: string
+}
+
 export const websitesApi = {
   list: () => api.get<WebsiteData[]>('/api/websites'),
   create: (data: WebsiteForm) => api.post<WebsiteData>('/api/websites', data),
@@ -357,6 +370,10 @@ export const websitesApi = {
   }) => api.post<{ success: boolean; message: string; items: ImportAccountItem[] }>(`/api/websites/${id}/accounts/import-upstream-keys`, data),
   organizeGroups: (id: number) =>
     api.post<{ success: boolean; message: string; items: OrganizeGroupsItem[] }>(`/api/websites/${id}/groups/organize`),
+  cleanupPreview: (id: number) =>
+    api.post<{ success: boolean; message: string; items: CleanupInvalidAccountsItem[] }>(`/api/websites/${id}/accounts/cleanup-invalid/preview`),
+  cleanupExecute: (id: number) =>
+    api.post<{ success: boolean; message: string; items: CleanupInvalidAccountsItem[] }>(`/api/websites/${id}/accounts/cleanup-invalid/execute`),
   listBindings: () => api.get<GroupBindingData[]>('/api/group-bindings'),
   createBinding: (data: GroupBindingForm) => api.post<GroupBindingData>('/api/group-bindings', data),
   updateBinding: (id: number, data: Partial<GroupBindingForm>) => api.put<GroupBindingData>(`/api/group-bindings/${id}`, data),

frontend/src/views/Websites.vue

@@ -124,6 +124,15 @@
           >
             一键整理分组
           </el-button>
+          <el-button
+            size="small"
+            text
+            :disabled="!selectedWebsite"
+            @click="openCleanupDialog"
+            title="清理当前网站已导入但失效/孤立的账号"
+          >
+            清理失效账号
+          </el-button>
           <el-button size="small" text :disabled="websites.length === 0" @click="openBindingCreate(selectedWebsite || websites[0])">新增绑定</el-button>
         </div>
         <div class="binding-list" v-loading="bindingLoading">
@@ -741,6 +750,97 @@
         <el-button @click="organizeDialog = false">关闭</el-button>
       </template>
     </el-dialog>
+
+    <!-- 清理失效账号弹窗 -->
+    <el-dialog
+      v-model="cleanupDialog"
+      title="清理失效账号候选预览"
+      width="1000px"
+      destroy-on-close
+    >
+      <div v-loading="cleanupLoading">
+        <el-alert
+          title="清理规则说明"
+          type="info"
+          show-icon
+          :closable="false"
+          style="margin-bottom: 15px;"
+        >
+          <div style="font-size: 13px; line-height: 1.5;">
+            系统已自动分析出可能已经失效、上游孤立或属于脏数据的账号候选。<br />
+            <strong>是否将删除</strong> 字段是由后端调用目标站账号测试接口的结果判定。只有测试明确失败（非正常响应）或 404 的账号，才会被允许清理。<br />
+            “确认清理”时，后端会重新测试 and 验证所有账号状态，只清理最终判定为失效的项。无 SmartUp 导入备注的手工账号不会被处理。
+          </div>
+        </el-alert>
+
+        <el-table :data="cleanupItems" border stripe style="width: 100%; max-height: 500px; overflow-y: auto;">
+          <el-table-column prop="account_id" label="账号 ID" width="160" show-overflow-tooltip />
+          <el-table-column prop="account_name" label="账号名" width="180" show-overflow-tooltip />
+          <el-table-column prop="upstream_name" label="来源上游" width="110" show-overflow-tooltip>
+            <template #default="{ row }">
+              <el-tag v-if="row.upstream_name" size="small">{{ row.upstream_name }}</el-tag>
+              <span v-else class="text-muted">-</span>
+            </template>
+          </el-table-column>
+          <el-table-column prop="source_group_name" label="来源分组" width="120" show-overflow-tooltip>
+            <template #default="{ row }">
+              <el-tag v-if="row.source_group_name" type="info" size="small">{{ row.source_group_name }}</el-tag>
+              <span v-else class="text-muted">-</span>
+            </template>
+          </el-table-column>
+          <el-table-column prop="upstream_key_id" label="Key ID" width="90" align="center">
+            <template #default="{ row }">
+              <span v-if="row.upstream_key_id" style="font-family: monospace;">#{{ row.upstream_key_id }}</span>
+              <span v-else class="text-muted">-</span>
+            </template>
+          </el-table-column>
+          <el-table-column prop="reason" label="原因" min-width="180" show-overflow-tooltip />
+          <el-table-column prop="test_status" label="测试结果" width="110" align="center">
+            <template #default="{ row }">
+              <el-tag v-if="row.test_status === 'test_passed'" type="success" size="small">测试通过</el-tag>
+              <el-tag v-else-if="row.test_status === 'failed'" type="danger" size="small">测试失败</el-tag>
+              <el-tag v-else-if="row.test_status === '404'" type="warning" size="small">404 不存在</el-tag>
+              <el-tag v-else type="info" size="small">未知 / 异常</el-tag>
+            </template>
+          </el-table-column>
+          <el-table-column prop="cleanup_allowed" label="是否将删除" width="100" align="center">
+            <template #default="{ row }">
+              <el-tag v-if="row.cleanup_allowed" type="danger" effect="dark" size="small">将删除</el-tag>
+              <el-tag v-else type="info" size="small">跳过</el-tag>
+            </template>
+          </el-table-column>
+          <el-table-column v-if="cleanupHasExecuted" prop="action_status" label="执行结果" width="110" align="center">
+            <template #default="{ row }">
+              <el-tag v-if="row.action_status === 'deleted'" type="success" effect="dark" size="small">已删除</el-tag>
+              <el-tag v-else-if="row.action_status === 'already_deleted'" type="warning" effect="dark" size="small">已不存在</el-tag>
+              <el-tag v-else-if="row.action_status === 'skipped'" type="info" size="small">已跳过</el-tag>
+              <el-tag v-else-if="row.action_status === 'failed'" type="danger" effect="dark" size="small">删除失败</el-tag>
+              <span v-else>-</span>
+            </template>
+          </el-table-column>
+        </el-table>
+
+        <div v-if="cleanupItems.length === 0" style="padding: 30px; text-align: center; color: var(--el-text-color-secondary);">
+          没有找到可以清理的失效或孤立账号。
+        </div>
+      </div>
+      <template #footer>
+        <div class="dialog-footer">
+          <el-button @click="cleanupDialog = false" :disabled="cleanupExecuting">
+            {{ cleanupHasExecuted ? '关闭' : '取消' }}
+          </el-button>
+          <el-button
+            v-if="!cleanupHasExecuted"
+            type="danger"
+            :loading="cleanupExecuting"
+            :disabled="cleanupLoading || cleanupItems.filter(i => i.cleanup_allowed).length === 0"
+            @click="executeCleanup"
+          >
+            确认清理 ({{ cleanupItems.filter(i => i.cleanup_allowed).length }} 个)
+          </el-button>
+        </div>
+      </template>
+    </el-dialog>
   </div>
 </template>
 
@@ -765,6 +865,7 @@ import {
   type WebsiteGroup,
   type WebsiteSyncLog,
   type OrganizeGroupsItem,
+  type CleanupInvalidAccountsItem,
 } from '@/api'
 
 const websites = ref<(WebsiteData & { _testing?: boolean })[]>([])
@@ -914,6 +1015,12 @@ const organizeLoading = ref(false)
 const organizeResults = ref<OrganizeGroupsItem[]>([])
 const organizeMessage = ref('')
 
+const cleanupDialog = ref(false)
+const cleanupLoading = ref(false)
+const cleanupExecuting = ref(false)
+const cleanupHasExecuted = ref(false)
+const cleanupItems = ref<CleanupInvalidAccountsItem[]>([])
+
 const upstreamGroupOptions = computed(() => {
   const rows: Array<{ key: string; label: string; rate: string | number; source: BindingSourceGroup }> = []
   for (const upstream of upstreams.value) {
@@ -1568,6 +1675,58 @@ async function organizeWebsiteGroups() {
   }
 }
 
+async function openCleanupDialog() {
+  if (!selectedWebsite.value) return
+  cleanupItems.value = []
+  cleanupHasExecuted.value = false
+  cleanupDialog.value = true
+  cleanupLoading.value = true
+  try {
+    const res = await websitesApi.cleanupPreview(selectedWebsite.value.id)
+    if (res.data.success) {
+      cleanupItems.value = res.data.items
+    } else {
+      ElMessage.error(res.data.message || '加载失效账号候选预览失败')
+      cleanupDialog.value = false
+    }
+  } catch (e: any) {
+    ElMessage.error(e.response?.data?.detail || '加载失效账号候选预览失败')
+    cleanupDialog.value = false
+  } finally {
+    cleanupLoading.value = false
+  }
+}
+
+async function executeCleanup() {
+  if (!selectedWebsite.value) return
+  try {
+    await ElMessageBox.confirm(
+      '确认清理失效账号？此操作将永久从目标站删除测试失败或不存在的账号，本地 orphaned 键将清空导入关联。',
+      '确认清理',
+      { type: 'warning' }
+    )
+  } catch {
+    return
+  }
+
+  cleanupExecuting.value = true
+  try {
+    const res = await websitesApi.cleanupExecute(selectedWebsite.value.id)
+    if (res.data.success) {
+      cleanupItems.value = res.data.items
+      cleanupHasExecuted.value = true
+      ElMessage.success(res.data.message || '清理完成')
+      await Promise.all([loadLogs(), loadWebsiteGroups(), loadBindings()])
+    } else {
+      ElMessage.error(res.data.message || '执行清理失败')
+    }
+  } catch (e: any) {
+    ElMessage.error(e.response?.data?.detail || '执行清理失败')
+  } finally {
+    cleanupExecuting.value = false
+  }
+}
+
 async function toggleBinding(row: GroupBindingData) {
   try {
     await websitesApi.updateBinding(row.id, { enabled: row.enabled })