feat: Wire AddAccountDialog and UpdateCredentialsDialog into health page and AccountCard

- health.tsx: Add Account button + AddAccountDialog, Refresh button with
  tooltip and spinner calling refreshAccounts mutation, inline account
  error state instead of full-page error, updated empty state text, and
  active-agent warning on delete confirm
- AccountCard.tsx: Show KeyRound button when credentials/token invalid,
  opens UpdateCredentialsDialog pre-populated with account identity

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/web/src/components/AccountCard.tsx

@@ -1,7 +1,9 @@
-import { CheckCircle2, XCircle, AlertTriangle, Trash2 } from "lucide-react";
+import { useState } from "react";
+import { CheckCircle2, XCircle, AlertTriangle, Trash2, KeyRound } from "lucide-react";
 import { Card, CardContent } from "@/components/ui/card";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
+import { UpdateCredentialsDialog } from "./UpdateCredentialsDialog";
 
 function formatResetTime(isoDate: string): string {
   const now = Date.now();
@@ -100,6 +102,7 @@ export function AccountCard({
   account: AccountData;
   onDelete?: (e: React.MouseEvent) => void;
 }) {
+  const [updateCredOpen, setUpdateCredOpen] = useState(false);
   const hasWarning = account.credentialsValid && !account.isExhausted && account.error;
 
   const statusIcon = !account.credentialsValid ? (
@@ -123,6 +126,7 @@ export function AccountCard({
   const usage = account.usage;
 
   return (
+    <>
     <Card>
       <CardContent className="space-y-3 py-4">
         {/* Header row */}
@@ -147,6 +151,17 @@ export function AccountCard({
               <span>{statusText}</span>
             </div>
           </div>
+          {(!account.credentialsValid || !account.tokenValid) && (
+            <Button
+              variant="ghost"
+              size="icon"
+              className="shrink-0 text-muted-foreground hover:text-foreground"
+              onClick={() => setUpdateCredOpen(true)}
+              title="Update credentials"
+            >
+              <KeyRound className="h-4 w-4" />
+            </Button>
+          )}
           {onDelete && (
             <Button
               variant="ghost"
@@ -220,5 +235,11 @@ export function AccountCard({
         )}
       </CardContent>
     </Card>
+    <UpdateCredentialsDialog
+      open={updateCredOpen}
+      onOpenChange={setUpdateCredOpen}
+      account={{ id: account.id, email: account.email, provider: account.provider }}
+    />
+    </>
   );
 }

apps/web/src/routes/settings/health.tsx

@@ -1,9 +1,13 @@
+import { useState } from 'react'
 import { createFileRoute } from '@tanstack/react-router'
 import {
   CheckCircle2,
   XCircle,
   RefreshCw,
   Server,
+  Plus,
+  RotateCcw,
+  Loader2,
 } from 'lucide-react'
 import { toast } from 'sonner'
 import { trpc } from '@/lib/trpc'
@@ -11,6 +15,8 @@ import { Card, CardHeader, CardTitle, CardContent } from '@/components/ui/card'
 import { Button } from '@/components/ui/button'
 import { Skeleton } from '@/components/Skeleton'
 import { AccountCard } from '@/components/AccountCard'
+import { Tooltip, TooltipTrigger, TooltipContent, TooltipProvider } from '@/components/ui/tooltip'
+import { AddAccountDialog } from '@/components/AddAccountDialog'
 
 export const Route = createFileRoute('/settings/health')({
   component: HealthCheckPage,
@@ -45,7 +51,23 @@ function HealthCheckPage() {
     },
   })
 
-  const { data, isLoading, isError, error, refetch } = healthQuery
+  const [addAccountOpen, setAddAccountOpen] = useState(false)
+
+  const refreshAccounts = trpc.refreshAccounts.useMutation({
+    onSuccess: (data) => {
+      const msg =
+        data.cleared === 0
+          ? 'No expired flags to clear.'
+          : `Cleared ${data.cleared} expired exhaustion flag(s).`
+      toast.success(msg)
+      void utils.systemHealthCheck.invalidate()
+    },
+    onError: (err) => {
+      toast.error(`Failed to refresh: ${err.message}`)
+    },
+  })
+
+  const { data, isLoading, isError, refetch } = healthQuery
 
   // Loading state
   if (isLoading) {
@@ -61,24 +83,9 @@ function HealthCheckPage() {
     )
   }
 
-  // Error state
+  const server = data?.server
-  if (isError) {
+  const accounts = data?.accounts ?? []
-    return (
+  const projects = data?.projects ?? []
-      <div className="flex flex-col items-center justify-center gap-4 py-12">
-        <XCircle className="h-8 w-8 text-status-error-fg" />
-        <p className="text-sm text-status-error-fg">
-          Failed to load health check: {error?.message ?? 'Unknown error'}
-        </p>
-        <Button variant="outline" size="sm" onClick={() => void refetch()}>
-          Retry
-        </Button>
-      </div>
-    )
-  }
-
-  if (!data) return null
-
-  const { server, accounts, projects } = data
 
   return (
     <div className="space-y-6">
@@ -95,6 +102,7 @@ function HealthCheckPage() {
       </div>
 
       {/* Server Status */}
+      {server && (
         <Card>
           <CardHeader>
             <CardTitle className="flex items-center gap-2 font-display text-lg">
@@ -121,11 +129,49 @@ function HealthCheckPage() {
             </div>
           </CardContent>
         </Card>
+      )}
 
       {/* Accounts */}
       <div className="space-y-3">
+        <div className="flex items-center justify-between">
           <h2 className="font-display text-lg font-semibold">Accounts</h2>
-        {accounts.length === 0 ? (
+          <div className="flex items-center gap-2">
+            <TooltipProvider>
+              <Tooltip>
+                <TooltipTrigger asChild>
+                  <Button
+                    variant="outline"
+                    size="sm"
+                    onClick={() => refreshAccounts.mutate()}
+                    disabled={refreshAccounts.isPending}
+                  >
+                    {refreshAccounts.isPending
+                      ? <Loader2 className="h-4 w-4 animate-spin" />
+                      : <RotateCcw className="h-4 w-4" />}
+                    <span className="sr-only">Refresh</span>
+                  </Button>
+                </TooltipTrigger>
+                <TooltipContent>Clear expired exhaustion flags</TooltipContent>
+              </Tooltip>
+            </TooltipProvider>
+            <Button
+              size="sm"
+              onClick={() => setAddAccountOpen(true)}
+            >
+              <Plus className="mr-2 h-4 w-4" />
+              Add Account
+            </Button>
+          </div>
+        </div>
+        {isError ? (
+          <Card>
+            <CardContent className="py-6">
+              <p className="text-center text-sm text-status-error-fg">
+                Could not load account status. Retrying…
+              </p>
+            </CardContent>
+          </Card>
+        ) : accounts.length === 0 ? (
           <Card>
             <CardContent className="py-6">
               <p className="text-center text-sm text-muted-foreground">
@@ -133,7 +179,7 @@ function HealthCheckPage() {
                 <code className="rounded bg-muted px-1 py-0.5 text-xs">
                   cw account add
                 </code>{' '}
-                to register one.
+                to register one, or click 'Add Account' above.
               </p>
             </CardContent>
           </Card>
@@ -143,7 +189,14 @@ function HealthCheckPage() {
               key={account.id}
               account={account}
               onDelete={(e) => {
-                if (e.shiftKey || window.confirm(`Remove account "${account.email}"?`)) {
+                if (
+                  e.shiftKey ||
+                  (account.activeAgentCount > 0
+                    ? window.confirm(
+                        `This account has ${account.activeAgentCount} active agent(s). Deleting it will not stop those agents but they will lose their account association. Continue?`
+                      )
+                    : window.confirm(`Remove account "${account.email}"?`))
+                ) {
                   removeAccount.mutate({ id: account.id })
                 }
               }}
@@ -186,6 +239,8 @@ function HealthCheckPage() {
           ))
         )}
       </div>
+
+      <AddAccountDialog open={addAccountOpen} onOpenChange={setAddAccountOpen} />
     </div>
   )
 }