feat(abonnement): client HTTP Frisbii (#90)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DRGb8NAMwaTZxUszSbaj4N

tests/subscriptions/conftest.py

@@ -0,0 +1,36 @@
+import json as _json
+
+import pytest
+
+
+class FakeResponse:
+    def __init__(self, status_code: int, payload=None):
+        self.status_code = status_code
+        self._payload = payload if payload is not None else {}
+
+    def json(self):
+        return self._payload
+
+    @property
+    def text(self):
+        return _json.dumps(self._payload)
+
+
+@pytest.fixture
+def fake_httpx(monkeypatch):
+    """Capture les appels httpx.request du client Frisbii et renvoie des réponses programmées."""
+    from src.subscriptions import client
+
+    calls = []
+    queue = []
+
+    def _fake_request(method, url, **kwargs):
+        calls.append({"method": method, "url": url, **kwargs})
+        if queue:
+            return queue.pop(0)
+        return FakeResponse(200, {})
+
+    monkeypatch.setenv("FRISBII_API_KEY", "priv_test")
+    monkeypatch.setenv("FRISBII_API_BASE_URL", "https://api.test")
+    monkeypatch.setattr(client.httpx, "request", _fake_request)
+    return {"calls": calls, "queue": queue, "Response": FakeResponse}