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/routes/dashboard.py

@@ -0,0 +1,56 @@
+"""대시보드 (화면 1, 읽기 전용).
+
+GET /        → 전체 페이지(상태 + 요약 카드 + 저장소 목록)
+GET /repos   → 저장소 목록 조각 (새로고침/폴링용 partial)
+"""
+
+from __future__ import annotations
+
+from typing import Any
+
+import httpx
+from fastapi import APIRouter, Depends, Request
+from fastapi.responses import HTMLResponse
+
+from .. import views
+from ..deps import get_pulp_client, templates
+from ..pulp_client import PulpClient
+
+router = APIRouter()
+
+
+def _load_repos(pulp: PulpClient) -> dict[str, Any]:
+    """저장소 목록을 읽어 표시 모델 + 요약 + (실패 시) 에러 메시지를 만든다."""
+    try:
+        repos = pulp.list_repos()
+    except httpx.HTTPError as exc:
+        return {"repos": [], "summary": views.summarize([]), "error": str(exc)}
+
+    repo_views: list[dict[str, Any]] = []
+    for repo in repos:
+        version = None
+        vhref = repo.get("latest_version_href")
+        if vhref:
+            try:
+                version = pulp.get_version(vhref)
+            except httpx.HTTPError:
+                version = None  # 버전 상세 실패는 치명적이지 않음 — 행은 표시
+        repo_views.append(views.build_repo_view(repo, version))
+
+    return {"repos": repo_views, "summary": views.summarize(repo_views), "error": None}
+
+
+@router.get("/", response_class=HTMLResponse)
+def dashboard(
+    request: Request, pulp: PulpClient = Depends(get_pulp_client)
+) -> HTMLResponse:
+    return templates.TemplateResponse(request, "dashboard.html", _load_repos(pulp))
+
+
+@router.get("/repos", response_class=HTMLResponse)
+def repos_fragment(
+    request: Request, pulp: PulpClient = Depends(get_pulp_client)
+) -> HTMLResponse:
+    return templates.TemplateResponse(
+        request, "partials/repo_list.html", _load_repos(pulp)
+    )