feat(club-002): club PWA: join flow, digital card and installable shell

work/artifacts/CLUB-002/leader-close.json

@@ -0,0 +1,29 @@
+{
+  "feature_id": "CLUB-002",
+  "agent": "leader",
+  "stage": "close",
+  "verdict": "APPROVED",
+  "summary": "CLUB-002 cerrada: PWA del Club con join, tarjeta digital, proxy same-origin y manifest instalable entregados con gates aprobados.",
+  "gates_summary": {
+    "reviewer": "APPROVED",
+    "security": "APPROVED",
+    "qa": "APPROVED"
+  },
+  "artifacts": [
+    "architect.md",
+    "implementer.md",
+    "reviewer.json",
+    "security.json",
+    "qa.json",
+    "documenter.md",
+    "leader-close.json"
+  ],
+  "evidence": [
+    "cd project/frontend && npm run build",
+    "cd project && npm run typecheck",
+    "cd project && npm run build",
+    "./scripts/verify.sh",
+    "git diff --check"
+  ],
+  "timestamp": "2026-08-26T17:21:45Z"
+}