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>

app/templates/partials/repo_list.html

@@ -0,0 +1,46 @@
+<div id="repo-list">
+  {% if error %}
+    <p role="alert" class="status-line status-bad">저장소 목록을 불러오지 못했습니다: {{ error }}</p>
+  {% else %}
+    <div class="summary">
+      <div class="card"><div class="value">{{ summary.total }}</div><div class="label">전체 저장소</div></div>
+      <div class="card"><div class="value">{{ summary.syncing }}</div><div class="label">동기화 중</div></div>
+      <div class="card"><div class="value">{{ summary.gpg_pass }}</div><div class="label">GPG 검증 통과</div></div>
+      <div class="card"><div class="value">{{ summary.total_packages }}</div><div class="label">총 패키지</div></div>
+    </div>
+
+    {% if repos %}
+    <div class="table-card">
+      <table>
+        <thead>
+          <tr>
+            <th>저장소</th>
+            <th>검증</th>
+            <th class="num">최신 버전</th>
+            <th class="num">패키지 수</th>
+            <th>마지막 동기화</th>
+            <th></th>
+          </tr>
+        </thead>
+        <tbody>
+          {% for repo in repos %}
+          <tr>
+            <td class="repo-name">{{ repo.name }}</td>
+            <td><span class="badge badge-{{ repo.gpg.level }}">{{ repo.gpg.label }}</span></td>
+            <td class="num">{% if repo.latest_version is not none %}v{{ repo.latest_version }}{% else %}—{% endif %}</td>
+            <td class="num">{% if repo.package_count is not none %}{{ repo.package_count }}{% else %}—{% endif %}</td>
+            <td>{{ repo.last_sync or "—" }}</td>
+            <td>
+              <!-- 동기화 버튼은 단계2에서 동작 연결 -->
+              <button disabled class="secondary">동기화</button>
+            </td>
+          </tr>
+          {% endfor %}
+        </tbody>
+      </table>
+    </div>
+    {% else %}
+    <p>등록된 저장소가 없습니다.</p>
+    {% endif %}
+  {% endif %}
+</div>