feat: FastAPI console with dashboard, Pulp client, healthz (stages 0-1)

- config: PULP_* env + 사내 CA(verify=) 대응
- pulp_client: Basic Auth get/post/patch, status/list_repos/get_version
- BFF 라우트: GET / (대시보드), GET /repos (조각), GET /healthz
- views: Pulp JSON → 표시 모델 (GPG 검증 배지 3단계, 요약 집계)
- HTMX + Jinja 템플릿, vendored pico.css/htmx.js (CDN 의존 0)
- 브라우저는 Pulp 직접 호출 안 함 — 모두 BFF 경유 (스펙 §2)
- 테스트: pulp_client(respx), 라우트(dependency_overrides), views 순수함수

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/test_dashboard.py

@@ -0,0 +1,73 @@
+import httpx
+from fastapi.testclient import TestClient
+
+from app.main import app, get_pulp_client
+
+client = TestClient(app)
+
+REPO = {
+    "pulp_href": "/pulp/api/v3/repositories/rpm/rpm/abc-123/",
+    "name": "rocky9-baseos",
+    "latest_version_href": "/pulp/api/v3/repositories/rpm/rpm/abc-123/versions/2/",
+    "repo_config": {"gpgcheck": 1, "repo-gpgcheck": 1},
+}
+VERSION = {
+    "pulp_created": "2026-06-01T00:00:00Z",
+    "content_summary": {"present": {"rpm.package": {"count": 1500}}},
+}
+
+
+class _FakePulp:
+    def __init__(self, repos=None, version=None, fail=False):
+        self._repos = repos or []
+        self._version = version
+        self._fail = fail
+
+    def list_repos(self):
+        if self._fail:
+            raise httpx.ConnectError("connection refused")
+        return self._repos
+
+    def get_version(self, href):
+        return self._version
+
+
+def _use(fake):
+    app.dependency_overrides[get_pulp_client] = lambda: fake
+
+
+def teardown_function():
+    app.dependency_overrides.clear()
+
+
+def test_dashboard_lists_repos():
+    _use(_FakePulp(repos=[REPO], version=VERSION))
+    resp = client.get("/")
+    assert resp.status_code == 200
+    body = resp.text
+    assert "rocky9-baseos" in body
+    assert "v2" in body
+    assert "1500" in body
+    assert "검증됨" in body  # GPG pass 배지
+
+
+def test_repos_fragment_standalone():
+    _use(_FakePulp(repos=[REPO], version=VERSION))
+    resp = client.get("/repos")
+    assert resp.status_code == 200
+    assert 'id="repo-list"' in resp.text
+    assert "rocky9-baseos" in resp.text
+
+
+def test_dashboard_empty():
+    _use(_FakePulp(repos=[]))
+    resp = client.get("/")
+    assert resp.status_code == 200
+    assert "등록된 저장소가 없습니다" in resp.text
+
+
+def test_dashboard_shows_error_when_pulp_down():
+    _use(_FakePulp(fail=True))
+    resp = client.get("/")
+    assert resp.status_code == 200  # 페이지는 뜨고 에러 메시지를 보여줌
+    assert "불러오지 못했습니다" in resp.text