fix(ui): lift muted meta text off the sub-xs floor

Bump text-[10px]/text-[11px] to text-xs on muted description, hint, and
status-label surfaces that had drifted below the type-scale floor —
coach conversation captions, settings/admin status badges, mood
confidence pills, side-effect and cycle meta lines. Tabular-nums
badges, chart-plot legend/axis chrome, ring geometry, and
width-constrained tag tiles keep their compact size by design.

src/components/admin/api-token-overview-section.tsx

@@ -328,13 +328,13 @@ export function ApiTokenOverviewSection() {
                           </Badge>
                         ))}
                       </div>
-                      <p className="text-muted-foreground mt-2 text-[11px]">
+                      <p className="text-muted-foreground mt-2 text-xs">
                         {t("admin.tokenLastUsed")}:{" "}
                         {token.lastUsedAt
                           ? formatDateTime(token.lastUsedAt)
                           : t("admin.tokenNeverUsed")}
                       </p>
-                      <p className="text-muted-foreground text-[11px]">
+                      <p className="text-muted-foreground text-xs">
                         {t("admin.tokenCreated")}: {formatDate(token.createdAt)}
                       </p>
                     </li>

src/components/admin/backups-section.tsx

@@ -578,11 +578,11 @@ export function BackupsSection() {
                 <li>
                   <div className="flex items-center gap-2">
                     <span className="truncate font-medium">{row.username}</span>
-                    <Badge variant="secondary" className="text-[10px]">
+                    <Badge variant="secondary" className="text-xs">
                       {formatBackupType(row.type, t)}
                     </Badge>
                   </div>
-                  <p className="text-muted-foreground text-[11px]">
+                  <p className="text-muted-foreground text-xs">
                     {t("admin.section.backups.colSize")}:{" "}
                     {formatBytes(row.sizeBytes, fmt)} ·{" "}
                     {fmt.dateTime(row.createdAt)}

src/components/admin/user-management-section.tsx

@@ -411,7 +411,7 @@ export function UserManagementSection() {
                             variant={
                               u.role === "ADMIN" ? "default" : "secondary"
                             }
-                            className="text-[10px]"
+                            className="text-xs"
                           >
                             {u.role}
                           </Badge>
@@ -419,7 +419,7 @@ export function UserManagementSection() {
                         <p className="text-muted-foreground truncate text-xs">
                           {u.email || "—"}
                         </p>
-                        <p className="text-muted-foreground text-[11px]">
+                        <p className="text-muted-foreground text-xs">
                           {t("admin.userPasskeys")}: {u.passkeyCount} ·{" "}
                           {formatDate(u.createdAt)}
                         </p>