feat: 扩展 Rust gateway 全功能模块，新增 billing/crypto/wallet crate 及完整数据层

- 新增 aether-billing、aether-crypto、aether-wallet 独立 crate
- aether-data 扩展 repository 层：announcements、auth_modules、billing、
  candidate_selection、gemini_file_mappings、global_models、management_tokens、
  oauth_providers、proxy_nodes、quota、users、wallet 等模块
- aether-gateway 新增 api/auth/billing/control/middleware/scheduler/usage/
  video_tasks/hooks/maintenance/model_fetch/provider_transport 等功能模块
- 重构 executor decision 和 gateway state 为模块目录结构
- 新增 gateway router、frontdoor 路由层及对应测试
- Python 侧 API 路由重构，新增 compat/support 模块
- 前端 Logo 组件更新及 Provider 管理页面调整

tests/api/public/test_videos_rust.py

@@ -0,0 +1,123 @@
+from __future__ import annotations
+
+from typing import Any
+from unittest.mock import MagicMock
+
+import pytest
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+
+from src.database import get_db
+
+
+def _build_app(monkeypatch: pytest.MonkeyPatch, *, pipeline_result: Any) -> tuple[TestClient, list[dict[str, Any]]]:
+    from src.api.public import videos as mod
+
+    app = FastAPI()
+    app.include_router(mod.router)
+    app.dependency_overrides[get_db] = lambda: MagicMock()
+
+    calls: list[dict[str, Any]] = []
+
+    async def _fake_pipeline_run(
+        *,
+        adapter: Any,
+        http_request: object,
+        db: object,
+        mode: object,
+        api_format_hint: str,
+        path_params: dict[str, Any] | None = None,
+    ) -> Any:
+        del http_request, db
+        calls.append(
+            {
+                "adapter_type": type(adapter).__name__,
+                "mode": getattr(mode, "value", mode),
+                "api_format_hint": api_format_hint,
+                "path_params": path_params,
+            }
+        )
+        return pipeline_result
+
+    monkeypatch.setattr(mod.pipeline, "run", _fake_pipeline_run)
+    return TestClient(app), calls
+
+
+def test_openai_video_create_route_is_pipeline_shell(monkeypatch: pytest.MonkeyPatch) -> None:
+    client, calls = _build_app(monkeypatch, pipeline_result={"ok": True})
+
+    response = client.post("/v1/videos", json={"model": "sora", "prompt": "hello"})
+
+    assert response.status_code == 200
+    assert response.json() == {"ok": True}
+    assert calls == [
+        {
+            "adapter_type": "OpenAIVideoAdapter",
+            "mode": "standard",
+            "api_format_hint": "openai:video",
+            "path_params": None,
+        }
+    ]
+
+
+def test_openai_video_download_route_passes_task_id_to_pipeline(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    client, calls = _build_app(monkeypatch, pipeline_result={"download": True})
+
+    response = client.get("/v1/videos/task-123/content")
+
+    assert response.status_code == 200
+    assert response.json() == {"download": True}
+    assert calls == [
+        {
+            "adapter_type": "OpenAIVideoAdapter",
+            "mode": "standard",
+            "api_format_hint": "openai:video",
+            "path_params": {"task_id": "task-123"},
+        }
+    ]
+
+
+def test_gemini_video_create_route_passes_model_to_pipeline(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    client, calls = _build_app(monkeypatch, pipeline_result={"ok": True})
+
+    response = client.post(
+        "/v1beta/models/veo-3:predictLongRunning",
+        json={"prompt": "hello"},
+    )
+
+    assert response.status_code == 200
+    assert response.json() == {"ok": True}
+    assert calls == [
+        {
+            "adapter_type": "GeminiVeoAdapter",
+            "mode": "standard",
+            "api_format_hint": "gemini:video",
+            "path_params": {"model": "veo-3"},
+        }
+    ]
+
+
+def test_gemini_video_cancel_route_reconstructs_operation_name(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    client, calls = _build_app(monkeypatch, pipeline_result={"ok": True})
+
+    response = client.post("/v1beta/models/veo-3/operations/op-1:cancel")
+
+    assert response.status_code == 200
+    assert response.json() == {"ok": True}
+    assert calls == [
+        {
+            "adapter_type": "GeminiVeoAdapter",
+            "mode": "standard",
+            "api_format_hint": "gemini:video",
+            "path_params": {
+                "task_id": "models/veo-3/operations/op-1",
+                "action": "cancel",
+            },
+        }
+    ]