Initialize VG-Environment from stable VG-IV baseline

src/dashboard/dashboard.css

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+* {
+  box-sizing: border-box;
+}
+
+body {
+  margin: 0;
+  min-width: 320px;
+  font-family: Arial, sans-serif;
+  color: #e5edf5;
+  background: #111827;
+}
+
+.dashboard {
+  width: min(1040px, 100%);
+  margin: 0 auto;
+  padding: 24px;
+}
+
+.dashboard-header {
+  display: grid;
+  gap: 8px;
+  margin-bottom: 20px;
+  padding-bottom: 16px;
+  border-bottom: 1px solid #334155;
+}
+
+h1,
+h2,
+p {
+  margin: 0;
+}
+
+h1 {
+  font-size: 24px;
+  font-weight: 700;
+}
+
+h2 {
+  margin-bottom: 12px;
+  font-size: 15px;
+  font-weight: 700;
+}
+
+.dashboard-status {
+  min-height: 18px;
+  font-size: 13px;
+  color: #cbd5e1;
+}
+
+.dashboard-notice {
+  max-width: 760px;
+  padding: 10px 12px;
+  border: 1px solid #334155;
+  border-radius: 4px;
+  background: #182231;
+}
+
+.maintenance-status {
+  display: grid;
+  gap: 10px;
+  max-width: 760px;
+  padding: 12px;
+  border: 1px solid #3f6f56;
+  border-radius: 4px;
+  background: #14251d;
+}
+
+.maintenance-status strong {
+  font-size: 14px;
+  color: #bbf7d0;
+}
+
+.maintenance-status dl {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: 10px;
+  margin: 0;
+}
+
+.maintenance-status dt {
+  margin: 0 0 4px;
+  font-size: 11px;
+  color: #cbd5e1;
+}
+
+.maintenance-status dd {
+  margin: 0;
+  font-size: 12px;
+  font-weight: 700;
+  word-break: break-word;
+}
+
+.panel {
+  margin-bottom: 22px;
+  padding-bottom: 20px;
+  border-bottom: 1px solid #334155;
+}
+
+.metric-grid {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 12px;
+  margin: 0;
+}
+
+.metric-grid div {
+  min-width: 0;
+  padding: 12px;
+  border: 1px solid #334155;
+  border-radius: 4px;
+  background: #1f2937;
+}
+
+.metric-grid dt {
+  margin: 0 0 8px;
+  font-size: 12px;
+  color: #cbd5e1;
+}
+
+.metric-grid dd {
+  margin: 0;
+  font-size: 24px;
+  font-weight: 700;
+  word-break: break-word;
+}
+
+table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 13px;
+  background: #1f2937;
+}
+
+th,
+td {
+  padding: 10px 12px;
+  border: 1px solid #334155;
+  text-align: left;
+}
+
+th {
+  color: #cbd5e1;
+  font-weight: 700;
+  background: #182231;
+}
+
+td:last-child,
+th:last-child {
+  width: 140px;
+  text-align: right;
+}
+
+p {
+  max-width: 720px;
+  font-size: 13px;
+  line-height: 1.5;
+  color: #cbd5e1;
+}
+
+.retention-actions,
+.admin-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+  margin-top: 14px;
+}
+
+.admin-status {
+  min-height: 18px;
+  margin-top: 12px;
+  font-size: 13px;
+  line-height: 1.4;
+  color: #cbd5e1;
+}
+
+button {
+  padding: 8px 10px;
+  border: 1px solid #475569;
+  border-radius: 4px;
+  font: inherit;
+  font-size: 13px;
+  color: #e5edf5;
+  background: #1f2937;
+}
+
+button:disabled {
+  cursor: default;
+  opacity: 0.65;
+}
+
+@media (max-width: 640px) {
+  .dashboard {
+    padding: 16px;
+  }
+
+  .metric-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .maintenance-status dl {
+    grid-template-columns: 1fr 1fr;
+  }
+
+  .retention-actions,
+  .admin-actions {
+    display: grid;
+  }
+}