feat(ui): show deployment status + rich pending-deploy tooltip on app header

Add a StatusDot + colored Badge next to the app name in the deployment
page header, showing the latest deployment's status (RUNNING / STARTING
/ FAILED / STOPPED / DEGRADED / STOPPING). The existing "Pending
deploy" badge now carries a tooltip explaining *why*: either a list of
local unsaved edits, or a per-field diff against the last successful
deploy's snapshot (field, staged vs deployed values). When server-side
differences exist, the badge shows the count.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

ui/src/pages/AppsTab/AppDeploymentPage/index.tsx

@@ -1,7 +1,7 @@
 import { useState, useEffect, useRef } from 'react';
 import { useParams, useLocation, useNavigate } from 'react-router';
 import { useQueryClient } from '@tanstack/react-query';
-import { AlertDialog, Badge, Button, Tabs, useToast } from '@cameleer/design-system';
+import { AlertDialog, Badge, Button, StatusDot, Tabs, useToast } from '@cameleer/design-system';
 import { useEnvironmentStore } from '../../../api/environment-store';
 import { useEnvironments } from '../../../api/queries/admin/environments';
 import {
@@ -39,6 +39,16 @@ import styles from './AppDeploymentPage.module.css';
 
 type TabKey = 'monitoring' | 'resources' | 'variables' | 'sensitive-keys' | 'deployment' | 'traces' | 'recording';
 
+const STATUS_COLORS: Record<string, 'success' | 'warning' | 'error' | 'auto' | 'running'> = {
+  RUNNING: 'running', STARTING: 'warning', FAILED: 'error', STOPPED: 'auto',
+  DEGRADED: 'warning', STOPPING: 'auto',
+};
+
+const DEPLOY_STATUS_DOT: Record<string, 'live' | 'stale' | 'dead' | 'success' | 'warning' | 'error' | 'running'> = {
+  RUNNING: 'live', STARTING: 'running', DEGRADED: 'stale',
+  STOPPING: 'stale', STOPPED: 'dead', FAILED: 'error',
+};
+
 function slugify(name: string): string {
   return name.toLowerCase().replace(/[^a-z0-9]+/g, '-').replace(/^-+|-+$/g, '').substring(0, 100);
 }
@@ -393,9 +403,35 @@ export default function AppDeploymentPage() {
       <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', gap: 8 }}>
         <div style={{ display: 'flex', alignItems: 'center', gap: 10 }}>
           <h2 style={{ margin: 0 }}>{app ? app.displayName : 'Create Application'}</h2>
-          {app && !deploymentInProgress && (dirty.anyLocalEdit || serverDirtyAgainstDeploy) && (
+          {app && latestDeployment && (
-            <Badge label="Pending deploy" color="warning" />
+            <span style={{ display: 'inline-flex', alignItems: 'center', gap: 5 }}>
+              <StatusDot variant={DEPLOY_STATUS_DOT[latestDeployment.status] ?? 'dead'} />
+              <Badge
+                label={latestDeployment.status}
+                color={STATUS_COLORS[latestDeployment.status] ?? 'auto'}
+              />
+            </span>
           )}
+          {app && !deploymentInProgress && (dirty.anyLocalEdit || serverDirtyAgainstDeploy) && (() => {
+            const diffs = dirtyState?.differences ?? [];
+            const noSnapshot = diffs.length === 1 && diffs[0].field === 'snapshot';
+            const tooltip = dirty.anyLocalEdit
+              ? 'Local edits not yet saved — see tabs marked with *.'
+              : noSnapshot
+                ? 'No successful deployment recorded for this app yet.'
+                : diffs.length > 0
+                  ? `Differs from last successful deploy:\n` +
+                    diffs.map((d) => `• ${d.field}\n    staged:   ${d.staged}\n    deployed: ${d.deployed}`).join('\n')
+                  : 'Server reports config differs from last successful deploy.';
+            return (
+              <span title={tooltip} style={{ display: 'inline-flex' }}>
+                <Badge
+                  label={dirty.anyLocalEdit ? 'Pending deploy' : `Pending deploy (${diffs.length})`}
+                  color="warning"
+                />
+              </span>
+            );
+          })()}
         </div>
         <div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
           {dirty.anyLocalEdit && (