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fix(failover): 188 完全移出 routing chain，備援只用 Gemini
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統帥鐵律 2026-04-26：
- 唯一 Ollama = 111（M1 Pro Metal 加速）
- 188 CPU-only (0.45 tok/s) 禁止即時回應，移出所有 fallback chain
- 111 HEALTHY → fallback=[Gemini]
- 111 非HEALTHY → primary=Gemini, fallback=[Nemotron, Claude]
- Gemini quota exceeded → Nemotron → Claude（不落 188）
- OllamaRoutingResult 移除 health_188 欄位
- select_provider 只 check 111（不再 asyncio.gather 兩節點）
- 測試全部對齊新規則（1451 passed）

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Your Name
2026-04-27 15:47:41 +08:00
parent 1b6a4dc14c
commit b432becd4e
2 changed files with 118 additions and 281 deletions
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229
apps/api/tests/test_ollama_failover_manager.py
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@@ -1,18 +1,19 @@
# apps/api/tests/test_ollama_failover_manager.py | 2026-04-25 @ Asia/Taipei
# apps/api/tests/test_ollama_failover_manager.py | 2026-04-27 @ Asia/Taipei
# Created 2026-04-25 P1.1c by Claude Engineer-C
# 2026-04-25 統帥指令 by Claude Engineer-C — 自動切 Gemini + 自動恢復（路由矩陣更新）
# 2026-04-27 波次對齊 by Claude Sonnet 4.6 — 統帥鐵律：唯一 Ollama=111，188 完全移出
"""
OllamaFailoverManager 單元測試 - P1.1c v2.0
OllamaFailoverManager 單元測試 - P1.1c v3.0
=============================================
測試覆蓋（新路由矩陣：Gemini 優先，188 最後備援）：
- 111 HEALTHY → primary=ollama(111)，fallback=[Gemini, 188, Nemotron]
- 111 SLOW → primary=Gemini，fallback 包含 111 + 188
- 111 DEGRADED → primary=Gemini，fallback 包含 188 + nemotron + claude
- 111 OFFLINE → primary=Gemini，fallback 包含 188 + nemotron + claude
- 111 + 188 都 OFFLINE → primary=Gemini，fallback 包含 nemotron + claude
- OLLAMA_FALLBACK_URL 未設定時的單節點行為
- 並行 gather 邏輯（asyncio.gather mock）
測試覆蓋（新路由矩陣：統帥鐵律 2026-04-26，唯一 Ollama=111，備援只用 Gemini）：
- 111 HEALTHY → primary=ollama(111)，fallback=[Gemini]
- 111 SLOW → primary=Gemini，fallback=[111, Nemotron, Claude]
- 111 DEGRADED → primary=Gemini，fallback=[Nemotron, Claude]
- 111 OFFLINE → primary=Gemini，fallback=[Nemotron, Claude]
- Gemini quota exceeded → primary=Nemotron，fallback=[Claude]
- select_provider 只 check 111（不再並行 check 188）
- clear_cache() / notify_recovery() 方法
- OllamaRoutingResult.health_188 保留為 optional（backward-compat）
測試分類：unit（mock OllamaHealthMonitor，無 DB 依賴）
"""
@@ -50,11 +51,10 @@ def _make_health(status: HealthStatus, url: str = URL_111) -> HealthReport:
return HealthReport(status=status, host=url, latency_ms=500.0)
def _make_manager(url_111: str = URL_111, url_188: str = URL_188) -> OllamaFailoverManager:
"""建立 manager，settings mock 為指定 URL"""
def _make_manager(url_111: str = URL_111) -> OllamaFailoverManager:
"""建立 manager，settings mock 為指定 URL（188 已移除）"""
mock_settings = MagicMock()
mock_settings.OLLAMA_URL = url_111
mock_settings.OLLAMA_FALLBACK_URL = url_188
mock_settings.OLLAMA_HEALTH_CHECK_MODEL = "qwen2.5:7b-instruct"
mock_monitor = MagicMock()
@@ -69,10 +69,10 @@ def _make_manager(url_111: str = URL_111, url_188: str = URL_188) -> OllamaFailo
class TestDecideRoute:
"""_decide_route 路由邏輯純函數測試"""
"""_decide_route 路由邏輯純函數測試（新簽名：只需 health_111, url_111）"""
def _setup(self, url_188: str = URL_188) -> OllamaFailoverManager:
return _make_manager(url_188=url_188)
def _setup(self) -> OllamaFailoverManager:
return _make_manager()
# ------------------------------------------------------------------
# 111 HEALTHY
@@ -81,41 +81,39 @@ class TestDecideRoute:
def test_111_healthy_primary_is_ollama(self):
manager = self._setup()
h111 = _make_health(HealthStatus.HEALTHY, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
assert result.primary.provider_name == "ollama"
assert result.primary.url == URL_111
def test_111_healthy_fallback_includes_188(self):
def test_111_healthy_fallback_is_gemini_only(self):
"""統帥鐵律：HEALTHY fallback 只有 Gemini，188/Nemotron 移出"""
manager = self._setup()
h111 = _make_health(HealthStatus.HEALTHY, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
provider_names = [e.provider_name for e in result.fallback_chain]
assert "ollama_188" in provider_names
assert provider_names == ["gemini"]
assert "ollama_188" not in provider_names
assert "nemotron" not in provider_names
def test_111_healthy_fallback_includes_nemotron_gemini(self):
def test_111_healthy_fallback_includes_gemini(self):
manager = self._setup()
h111 = _make_health(HealthStatus.HEALTHY, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
provider_names = [e.provider_name for e in result.fallback_chain]
assert "nemotron" in provider_names
assert "gemini" in provider_names
def test_111_healthy_fallback_order_gemini_first(self):
"""新矩陣：Gemini 應排在 188/nemotron 之前（快速雲端優先）"""
"""統帥鐵律：Gemini 是唯一 fallback，排在 fallback_chain[0]"""
manager = self._setup()
h111 = _make_health(HealthStatus.HEALTHY, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
assert result.fallback_chain[0].provider_name == "gemini"
@@ -127,30 +125,29 @@ class TestDecideRoute:
"""新矩陣：111 SLOW → primary=Gemini（111 eval ~0.09 token/s, ~111s，Gemini 更快）"""
manager = self._setup()
h111 = _make_health(HealthStatus.SLOW, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
assert result.primary.provider_name == "gemini"
def test_111_slow_fallback_includes_111_and_188(self):
"""SLOW 時 111 + 188 仍在 fallback（Gemini 額度耗盡時的降級鏈）"""
def test_111_slow_fallback_includes_111_and_nemotron(self):
"""SLOW 時 111 + Nemotron 在 fallback（188 已移出）"""
manager = self._setup()
h111 = _make_health(HealthStatus.SLOW, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
provider_names = [e.provider_name for e in result.fallback_chain]
assert "ollama" in provider_names
assert "ollama_188" in provider_names
assert "nemotron" in provider_names
assert "ollama_188" not in provider_names
def test_111_slow_no_188_primary_is_gemini(self):
"""111 SLOW + 188 未設定 → primary=Gemini（新矩陣，不強撐 111）"""
manager = _make_manager(url_188="") # 188 未設定
def test_111_slow_primary_is_gemini_no_188(self):
"""111 SLOW + 188 不存在 → primary=Gemini（新矩陣，188 完全移出）"""
manager = _make_manager()
h111 = _make_health(HealthStatus.SLOW, URL_111)
result = manager._decide_route(h111, None, URL_111, "")
result = manager._decide_route(h111, URL_111)
assert result.primary.provider_name == "gemini"
@@ -162,9 +159,8 @@ class TestDecideRoute:
"""新矩陣：111 DEGRADED → primary=Gemini"""
manager = self._setup()
h111 = _make_health(HealthStatus.DEGRADED, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
assert result.primary.provider_name == "gemini"
@@ -172,72 +168,55 @@ class TestDecideRoute:
"""DEGRADED 時 111 不在 fallback（太差了）"""
manager = self._setup()
h111 = _make_health(HealthStatus.DEGRADED, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
provider_names = [e.provider_name for e in result.fallback_chain]
assert "ollama" not in provider_names
def test_111_degraded_fallback_includes_188_nemotron_claude(self):
"""新矩陣：DEGRADED fallback = [188, nemotron, claude]"""
def test_111_degraded_fallback_includes_nemotron_claude(self):
"""統帥鐵律：DEGRADED fallback = [Nemotron, Claude]（188 已移出）"""
manager = self._setup()
h111 = _make_health(HealthStatus.DEGRADED, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
provider_names = [e.provider_name for e in result.fallback_chain]
assert "ollama_188" in provider_names
assert "nemotron" in provider_names
assert "claude" in provider_names
assert "ollama_188" not in provider_names
# ------------------------------------------------------------------
# 111 OFFLINE
# ------------------------------------------------------------------
def test_111_offline_primary_is_gemini(self):
"""新矩陣：111 OFFLINE → primary=Gemini（188 降為 fallback 備援）"""
"""新矩陣：111 OFFLINE → primary=Gemini"""
manager = self._setup()
h111 = _make_health(HealthStatus.OFFLINE, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
assert result.primary.provider_name == "gemini"
# ------------------------------------------------------------------
# 雙節點都 OFFLINE
# ------------------------------------------------------------------
def test_both_offline_primary_is_gemini(self):
"""新矩陣：111 + 188 都 OFFLINE → Gemini 接手（最快雲端）"""
def test_111_offline_fallback_includes_nemotron_claude(self):
"""111 OFFLINE 時，fallback=[Nemotron, Claude]（無可用 Ollama）"""
manager = self._setup()
h111 = _make_health(HealthStatus.OFFLINE, URL_111)
h188 = _make_health(HealthStatus.OFFLINE, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
assert result.primary.provider_name == "gemini"
def test_both_offline_fallback_includes_nemotron_claude(self):
"""雙 OFFLINE 時，fallback=[Nemotron, Claude]（無可用 Ollama）"""
manager = self._setup()
h111 = _make_health(HealthStatus.OFFLINE, URL_111)
h188 = _make_health(HealthStatus.OFFLINE, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
provider_names = [e.provider_name for e in result.fallback_chain]
assert "nemotron" in provider_names
assert "claude" in provider_names
assert "ollama_188" not in provider_names
def test_111_offline_no_188_primary_is_gemini(self):
"""新矩陣：111 OFFLINE + 188 未設定 → Gemini（不是 Nemotron）"""
manager = _make_manager(url_188="")
def test_111_offline_primary_is_gemini_no_188(self):
"""新矩陣：111 OFFLINE → Gemini（188 不再列入考慮）"""
manager = _make_manager()
h111 = _make_health(HealthStatus.OFFLINE, URL_111)
result = manager._decide_route(h111, None, URL_111, "")
result = manager._decide_route(h111, URL_111)
assert result.primary.provider_name == "gemini"
@@ -249,35 +228,30 @@ class TestDecideRoute:
"""routing_reason 應包含 111 的狀態資訊"""
manager = self._setup()
h111 = _make_health(HealthStatus.OFFLINE, URL_111)
h188 = _make_health(HealthStatus.HEALTHY, URL_188)
result = manager._decide_route(h111, h188, URL_111, URL_188)
result = manager._decide_route(h111, URL_111)
assert "offline" in result.routing_reason.lower() or "111" in result.routing_reason
# =============================================================================
# select_provider()：並行 gather
# select_provider()：只 check 111
# =============================================================================
class TestSelectProvider:
"""select_provider() 並行邏輯"""
"""select_provider() 只 check 111 邏輯（統帥鐵律：188 完全移出）"""
@pytest.mark.asyncio
async def test_select_provider_calls_gather(self):
"""有 url_188 時應並行 gather 兩個 check"""
async def test_select_provider_checks_111_only(self):
"""統帥鐵律：select_provider 只 check 111，call_count == 1"""
mock_monitor = AsyncMock()
mock_monitor.check = AsyncMock(
side_effect=[
_make_health(HealthStatus.HEALTHY, URL_111),
_make_health(HealthStatus.HEALTHY, URL_188),
]
return_value=_make_health(HealthStatus.HEALTHY, URL_111)
)
mock_settings = MagicMock()
mock_settings.OLLAMA_URL = URL_111
mock_settings.OLLAMA_FALLBACK_URL = URL_188
mock_settings.OLLAMA_HEALTH_CHECK_MODEL = "qwen2.5:7b-instruct"
manager = OllamaFailoverManager(health_monitor=mock_monitor)
@@ -286,21 +260,19 @@ class TestSelectProvider:
with patch.object(manager, "_write_failover_audit", return_value=None):
result = await manager.select_provider()
# 兩個 host 都被 check
assert mock_monitor.check.call_count == 2
called_hosts = {call.args[0] for call in mock_monitor.check.call_args_list}
assert URL_111 in called_hosts
assert URL_188 in called_hosts
# 只 check 111，不再並行 check 188
assert mock_monitor.check.call_count == 1
called_url = mock_monitor.check.call_args.args[0]
assert called_url == URL_111
@pytest.mark.asyncio
async def test_select_provider_single_node_no_188(self):
"""OLLAMA_FALLBACK_URL 空字串 → 只 check 111"""
async def test_select_provider_single_node_primary_ollama(self):
"""111 HEALTHY → primary=ollama"""
mock_monitor = AsyncMock()
mock_monitor.check = AsyncMock(return_value=_make_health(HealthStatus.HEALTHY, URL_111))
mock_settings = MagicMock()
mock_settings.OLLAMA_URL = URL_111
mock_settings.OLLAMA_FALLBACK_URL = ""
mock_settings.OLLAMA_HEALTH_CHECK_MODEL = "qwen2.5:7b-instruct"
manager = OllamaFailoverManager(health_monitor=mock_monitor)
@@ -317,22 +289,17 @@ class TestSelectProvider:
"""select_provider 返回 OllamaRoutingResult 類型（新矩陣：111 OFFLINE → Gemini）"""
mock_monitor = AsyncMock()
mock_monitor.check = AsyncMock(
side_effect=[
_make_health(HealthStatus.OFFLINE, URL_111),
_make_health(HealthStatus.HEALTHY, URL_188),
]
return_value=_make_health(HealthStatus.OFFLINE, URL_111)
)
mock_settings = MagicMock()
mock_settings.OLLAMA_URL = URL_111
mock_settings.OLLAMA_FALLBACK_URL = URL_188
mock_settings.OLLAMA_HEALTH_CHECK_MODEL = "qwen2.5:7b-instruct"
manager = OllamaFailoverManager(health_monitor=mock_monitor)
manager._settings = mock_settings
# 2026-04-27 Wave8-X2: 必須 mock Redis pool（_check_gemini_quota 走 fail-closed 路徑會切到 188 而非 Gemini）
# 測試本身只要驗 OFFLINE → Gemini 路由邏輯，故繞過 quota check
# 必須 mock Redis pool（_check_gemini_quota 走 fail-closed 路徑會切到 Nemotron 而非 Gemini）
with patch.object(manager, "_write_failover_audit", return_value=None), \
patch.object(manager, "_check_gemini_quota", AsyncMock(return_value=True)), \
patch(
@@ -345,7 +312,7 @@ class TestSelectProvider:
result = await manager.select_provider()
assert isinstance(result, OllamaRoutingResult)
# 新矩陣：111 OFFLINE + Gemini quota OK → primary=Gemini（188 降為 fallback）
# 新矩陣：111 OFFLINE + Gemini quota OK → primary=Gemini
assert result.primary.provider_name == "gemini"
@pytest.mark.asyncio
@@ -353,26 +320,20 @@ class TestSelectProvider:
"""111 正常時不觸發 failover audit"""
mock_monitor = AsyncMock()
mock_monitor.check = AsyncMock(
side_effect=[
_make_health(HealthStatus.HEALTHY, URL_111),
_make_health(HealthStatus.HEALTHY, URL_188),
]
return_value=_make_health(HealthStatus.HEALTHY, URL_111)
)
mock_settings = MagicMock()
mock_settings.OLLAMA_URL = URL_111
mock_settings.OLLAMA_FALLBACK_URL = URL_188
mock_settings.OLLAMA_HEALTH_CHECK_MODEL = "qwen2.5:7b-instruct"
manager = OllamaFailoverManager(health_monitor=mock_monitor)
manager._settings = mock_settings
audit_called = [False]
original_write = manager._write_failover_audit
async def _spy_audit(result):
# _write_failover_audit 在 111 HEALTHY 時 early return，不寫 DB
# 追蹤呼叫是否有 side effect（DB 寫入）
audit_called[0] = result.primary.provider_name != "ollama"
with patch.object(manager, "_write_failover_audit", side_effect=_spy_audit):
@@ -435,7 +396,7 @@ class TestOllamaRoutingResult:
def test_all_endpoints_in_order(self):
from src.services.ollama_failover_manager import OllamaEndpoint
primary = OllamaEndpoint(url=URL_111, provider_name="ollama", model="m1")
fb1 = OllamaEndpoint(url=URL_188, provider_name="ollama_188", model="m2")
fb1 = OllamaEndpoint(url="", provider_name="gemini", model="gemini-1.5-flash")
fb2 = OllamaEndpoint(url="", provider_name="nemotron", model="m3")
result = OllamaRoutingResult(
@@ -447,7 +408,7 @@ class TestOllamaRoutingResult:
ordered = result.all_endpoints_in_order()
assert ordered[0].provider_name == "ollama"
assert ordered[1].provider_name == "ollama_188"
assert ordered[1].provider_name == "gemini"
assert ordered[2].provider_name == "nemotron"
def test_to_dict_structure(self):
@@ -464,6 +425,19 @@ class TestOllamaRoutingResult:
assert d["routing_reason"] == "111 HEALTHY"
assert isinstance(d["fallback_chain"], list)
def test_health_188_optional_field_backward_compat(self):
"""health_188 保留為 optional None（backward-compat，不傳也可以）"""
from src.services.ollama_failover_manager import OllamaEndpoint
primary = OllamaEndpoint(url=URL_111, provider_name="ollama", model="qwen")
result = OllamaRoutingResult(
primary=primary,
fallback_chain=[],
routing_reason="test",
health_111=_make_health(HealthStatus.HEALTHY),
# health_188 不傳，應為 None
)
assert result.health_188 is None
# =============================================================================
# Singleton
@@ -552,22 +526,18 @@ class TestAIProviderEnumOllama188:
class TestGatherReturnExceptions:
"""H4 修復驗證：任一 check 拋例外時不炸整個 select_provider"""
"""H4 修復驗證：111 check 拋例外時不炸整個 select_provider"""
@pytest.mark.asyncio
async def test_gather_exception_in_111_treated_as_offline(self):
"""111 check 拋例外 → health_111=OFFLINE，select_provider 正常返回"""
mock_monitor = AsyncMock()
mock_monitor.check = AsyncMock(
side_effect=[
RuntimeError("111 network error"),
_make_health(HealthStatus.HEALTHY, URL_188),
]
side_effect=RuntimeError("111 network error")
)
mock_settings = MagicMock()
mock_settings.OLLAMA_URL = URL_111
mock_settings.OLLAMA_FALLBACK_URL = URL_188
mock_settings.OLLAMA_HEALTH_CHECK_MODEL = "qwen2.5:7b-instruct"
mock_settings.GEMINI_DAILY_QUOTA = 1000
@@ -582,19 +552,15 @@ class TestGatherReturnExceptions:
assert result.primary.provider_name == "gemini"
@pytest.mark.asyncio
async def test_gather_exception_in_188_treated_as_offline(self):
"""188 check 拋例外 → health_188=OFFLINE，select_provider 正常返回"""
async def test_111_healthy_select_provider_primary_ollama(self):
"""111 HEALTHY → primary=ollama，select_provider 正常返回（取代舊的 188 exception 測試）"""
mock_monitor = AsyncMock()
mock_monitor.check = AsyncMock(
side_effect=[
_make_health(HealthStatus.HEALTHY, URL_111),
RuntimeError("188 network error"),
]
return_value=_make_health(HealthStatus.HEALTHY, URL_111)
)
mock_settings = MagicMock()
mock_settings.OLLAMA_URL = URL_111
mock_settings.OLLAMA_FALLBACK_URL = URL_188
mock_settings.OLLAMA_HEALTH_CHECK_MODEL = "qwen2.5:7b-instruct"
mock_settings.GEMINI_DAILY_QUOTA = 1000
@@ -605,7 +571,7 @@ class TestGatherReturnExceptions:
patch.object(manager, "_check_gemini_quota", return_value=True):
result = await manager.select_provider()
# 111 HEALTHY → primary=ollama（188 exception 不影響主路由）
# 111 HEALTHY → primary=ollama
assert result.primary.provider_name == "ollama"
@@ -682,19 +648,15 @@ class TestGeminiQuota:
assert ok is False
@pytest.mark.asyncio
async def test_select_provider_quota_exceeded_uses_188(self):
"""select_provider：Gemini quota 超過 → primary 改為 OLLAMA_188"""
async def test_select_provider_quota_exceeded_uses_nemotron(self):
"""select_provider：Gemini quota 超過 → primary 改為 Nemotron（統帥鐵律：188 移出）"""
mock_monitor = AsyncMock()
mock_monitor.check = AsyncMock(
side_effect=[
_make_health(HealthStatus.OFFLINE, URL_111),
_make_health(HealthStatus.HEALTHY, URL_188),
]
return_value=_make_health(HealthStatus.OFFLINE, URL_111)
)
mock_settings = MagicMock()
mock_settings.OLLAMA_URL = URL_111
mock_settings.OLLAMA_FALLBACK_URL = URL_188
mock_settings.OLLAMA_HEALTH_CHECK_MODEL = "qwen2.5:7b-instruct"
mock_settings.GEMINI_DAILY_QUOTA = 1000
@@ -705,8 +667,8 @@ class TestGeminiQuota:
patch.object(manager, "_check_gemini_quota", return_value=False):
result = await manager.select_provider()
# quota 超過 → 不走 Gemini，改走 188
assert result.primary.provider_name == "ollama_188"
# quota 超過 → 不走 Gemini，改走 Nemotron（188 已移出）
assert result.primary.provider_name == "nemotron"
@pytest.mark.asyncio
async def test_select_provider_quota_exceeded_no_188_uses_nemotron(self):
@@ -716,7 +678,6 @@ class TestGeminiQuota:
mock_settings = MagicMock()
mock_settings.OLLAMA_URL = URL_111
mock_settings.OLLAMA_FALLBACK_URL = "" # 無 188
mock_settings.OLLAMA_HEALTH_CHECK_MODEL = "qwen2.5:7b-instruct"
mock_settings.GEMINI_DAILY_QUOTA = 1000