feat: redesign Deployments tab with Overview + Configuration sub-tabs

Overview sub-tab:
- Deployments table with env badge, version, status, URL, deployed time
- Actions (Start/Stop) scoped to selected environment; other envs show
  "switch env to manage" hint with muted rows
- Versions list with per-env deploy target picker

Configuration sub-tab:
- Read-only by default with Edit mode gate (Cancel/Save banner)
- Agent observability: engine level, payload capture with size unit
  selector, log levels, metrics toggle, sampling, replay and route
  control (default enabled)
- Container resources: memory/CPU limits, exposed ports as deletable
  pills with inline add input
- Environment variables: key-value editor with add/remove
- Reuses existing ApplicationConfig API for agent config push via SSE

Tab renamed from "Apps" to "Deployments" in the tab bar.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/components/ContentTabs.tsx

@@ -23,7 +23,7 @@ export function ContentTabs({ active, onChange, scope }: ContentTabsProps) {
   const canControl = useCanControl();
   const tabs = useMemo(() => {
     if (!canControl) return BASE_TABS;
-    return [...BASE_TABS, { label: 'Apps', value: 'apps' }];
+    return [...BASE_TABS, { label: 'Deployments', value: 'apps' }];
   }, [canControl]);
 
   return (

ui/src/pages/AppsTab/AppsTab.module.css

@@ -26,7 +26,7 @@
   gap: 8px;
 }
 
-.envSelect {
+.nativeSelect {
   padding: 6px 8px;
   border: 1px solid var(--border-subtle);
   border-radius: 4px;
@@ -47,6 +47,7 @@
   color: var(--text-muted);
 }
 
+/* Detail header */
 .detailHeader {
   display: flex;
   justify-content: space-between;
@@ -70,25 +71,91 @@
   gap: 6px;
 }
 
-.metaGrid {
-  display: grid;
-  grid-template-columns: auto 1fr;
-  gap: 6px 16px;
-  font-size: 12px;
-  font-family: var(--font-body);
+.detailActions {
+  display: flex;
+  gap: 8px;
+}
+
+/* Sub tabs */
+.subTabs {
+  display: flex;
+  border-bottom: 1px solid var(--border-subtle);
   margin-bottom: 16px;
 }
 
-.metaLabel {
-  color: var(--text-muted);
+.subTab {
+  padding: 8px 16px;
+  font-size: 13px;
   font-weight: 500;
+  color: var(--text-muted);
+  cursor: pointer;
+  border: none;
+  border-bottom: 2px solid transparent;
+  background: none;
+  font-family: var(--font-body);
 }
 
+.subTab:hover {
+  color: var(--text-primary);
+}
+
+.subTabActive {
+  color: var(--accent, #6c7aff);
+  border-bottom-color: var(--accent, #6c7aff);
+}
+
+/* Table */
+.table {
+  width: 100%;
+  border-collapse: collapse;
+  margin-bottom: 16px;
+}
+
+.table th {
+  text-align: left;
+  padding: 8px 12px;
+  font-size: 11px;
+  font-weight: 600;
+  color: var(--text-muted);
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  border-bottom: 1px solid var(--border-subtle);
+}
+
+.table td {
+  padding: 10px 12px;
+  border-bottom: 1px solid var(--border-subtle);
+  font-size: 13px;
+  vertical-align: middle;
+}
+
+.table tr:hover td {
+  background: var(--bg-hover);
+}
+
+.mutedRow td {
+  opacity: 0.45;
+}
+
+.mutedMono {
+  font-family: var(--font-mono);
+  font-size: 11px;
+  color: var(--text-muted);
+  opacity: 0.5;
+}
+
+.envHint {
+  font-size: 11px;
+  color: var(--text-muted);
+  font-style: italic;
+}
+
+/* Version rows */
 .row {
   display: flex;
   align-items: center;
   gap: 8px;
-  padding: 6px 0;
+  padding: 8px 0;
   border-bottom: 1px solid var(--border-subtle);
   font-size: 12px;
   font-family: var(--font-body);
@@ -99,72 +166,174 @@
   color: var(--text-primary);
 }
 
-.rowMeta {
-  color: var(--text-muted);
-  font-size: 11px;
-}
-
-.errorText {
-  color: var(--error);
-  font-size: 11px;
-}
-
 .emptyNote {
   font-size: 12px;
   color: var(--text-muted);
   font-style: italic;
-  margin: 4px 0 8px;
+  margin: 4px 0 12px;
 }
 
-.configForm {
-  margin-top: 8px;
-}
-
-.configSection {
+/* Edit mode banner */
+.editBanner {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 10px 16px;
+  background: var(--bg-raised);
+  border: 1px solid var(--border-subtle);
+  border-radius: 6px;
   margin-bottom: 16px;
 }
 
-.configTitle {
-  font-size: 13px;
-  font-weight: 600;
-  color: var(--text-primary);
-  margin: 0 0 8px;
+.editBannerActive {
+  border-color: var(--warning);
+  background: rgba(251, 191, 36, 0.06);
 }
 
+.editBannerText {
+  font-size: 12px;
+  color: var(--text-muted);
+}
+
+.editBannerTextWarn {
+  font-size: 12px;
+  color: var(--warning);
+}
+
+.editBannerActions {
+  display: flex;
+  gap: 8px;
+}
+
+/* Config grid */
 .configGrid {
   display: grid;
   grid-template-columns: 160px 1fr;
-  gap: 8px 12px;
-  align-items: start;
+  gap: 8px 16px;
+  align-items: center;
+  margin-bottom: 16px;
 }
 
 .configLabel {
   font-size: 12px;
   color: var(--text-muted);
   font-weight: 500;
-  padding-top: 8px;
 }
 
-.configField {
+.configInline {
   display: flex;
-  flex-direction: column;
-  gap: 4px;
+  align-items: center;
+  gap: 6px;
 }
 
 .configHint {
   font-size: 11px;
   color: var(--text-muted);
   font-style: italic;
+  margin-top: 2px;
 }
 
-.envVarEditor {
-  width: 100%;
-  font-family: var(--font-mono);
+.toggleEnabled {
   font-size: 12px;
-  padding: 8px;
-  border: 1px solid var(--border-subtle);
-  border-radius: 4px;
-  background: var(--bg-surface);
-  color: var(--text-primary);
-  resize: vertical;
+  color: var(--success);
+}
+
+.toggleDisabled {
+  font-size: 12px;
+  color: var(--text-muted);
+}
+
+/* Port pills */
+.portPills {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 6px;
+  align-items: center;
+}
+
+.portPill {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  padding: 3px 8px;
+  border-radius: 12px;
+  font-size: 12px;
+  font-family: var(--font-mono);
+  background: var(--bg-raised);
+  color: var(--text-primary);
+  border: 1px solid var(--border-subtle);
+}
+
+.portPillDelete {
+  background: none;
+  border: none;
+  color: var(--text-muted);
+  cursor: pointer;
+  font-size: 13px;
+  line-height: 1;
+  padding: 0;
+}
+
+.portPillDelete:hover {
+  color: var(--error);
+}
+
+.portPillDelete:disabled {
+  opacity: 0.3;
+  cursor: default;
+}
+
+.portAddInput {
+  width: 70px;
+  padding: 3px 6px;
+  border: 1px dashed var(--border-subtle);
+  border-radius: 12px;
+  background: transparent;
+  color: var(--text-primary);
+  font-size: 12px;
+  font-family: var(--font-mono);
+  text-align: center;
+}
+
+.portAddInput::placeholder {
+  color: var(--text-muted);
+}
+
+.portAddInput:disabled {
+  opacity: 0.3;
+  cursor: default;
+}
+
+/* Env var editor */
+.envVarRow {
+  display: flex;
+  gap: 8px;
+  align-items: center;
+  margin-bottom: 6px;
+}
+
+.envVarKey {
+  width: 180px;
+}
+
+.envVarValue {
+  flex: 1;
+}
+
+.envVarDelete {
+  background: none;
+  border: none;
+  color: var(--text-muted);
+  cursor: pointer;
+  font-size: 16px;
+  padding: 4px;
+}
+
+.envVarDelete:hover {
+  color: var(--error);
+}
+
+.envVarDelete:disabled {
+  opacity: 0.3;
+  cursor: default;
 }

ui/src/pages/AppsTab/AppsTab.tsx

@@ -1,5 +1,5 @@
-import { useState, useMemo, useRef } from 'react';
-import { useParams } from 'react-router';
+import { useState, useMemo, useRef, useEffect, useCallback } from 'react';
+import { useParams, useNavigate } from 'react-router';
 import {
   Badge,
   Button,
@@ -7,7 +7,9 @@ import {
   Input,
   MonoText,
   SectionHeader,
+  Select,
   Spinner,
+  Toggle,
   useToast,
 } from '@cameleer/design-system';
 import type { Column } from '@cameleer/design-system';
@@ -27,6 +29,8 @@ import {
 } from '../../api/queries/admin/apps';
 import type { App, AppVersion, Deployment } from '../../api/queries/admin/apps';
 import type { Environment } from '../../api/queries/admin/environments';
+import { useApplicationConfig, useUpdateApplicationConfig } from '../../api/queries/commands';
+import type { ApplicationConfig } from '../../api/queries/commands';
 import styles from './AppsTab.module.css';
 
 function formatBytes(bytes: number): string {
@@ -42,15 +46,11 @@ function timeAgo(date: string): string {
   if (minutes < 60) return `${minutes}m ago`;
   const hours = Math.floor(minutes / 60);
   if (hours < 24) return `${hours}h ago`;
-  const days = Math.floor(hours / 24);
-  return `${days}d ago`;
+  return `${Math.floor(hours / 24)}d ago`;
 }
 
 const STATUS_COLORS: Record<string, 'success' | 'warning' | 'error' | 'auto' | 'running'> = {
-  RUNNING: 'running',
-  STARTING: 'warning',
-  FAILED: 'error',
-  STOPPED: 'auto',
+  RUNNING: 'running', STARTING: 'warning', FAILED: 'error', STOPPED: 'auto',
 };
 
 export default function AppsTab() {
@@ -58,39 +58,20 @@ export default function AppsTab() {
   const selectedEnv = useEnvironmentStore((s) => s.environment);
   const { data: environments = [] } = useEnvironments();
 
-  // If an app is selected via sidebar, show detail view
-  if (appId) {
-    return (
-      <AppDetailView
-        appId={appId}
-        environments={environments}
-      />
-    );
-  }
-
-  // Otherwise show list view
-  return (
-    <AppListView
-      selectedEnv={selectedEnv}
-      environments={environments}
-    />
-  );
+  if (appId) return <AppDetailView appId={appId} environments={environments} selectedEnv={selectedEnv} />;
+  return <AppListView selectedEnv={selectedEnv} environments={environments} />;
 }
 
-// --- List View ---
+// ═══════════════════════════════════════════════════════════════════
+//  LIST VIEW
+// ═══════════════════════════════════════════════════════════════════
 
-function AppListView({
-  selectedEnv,
-  environments,
-}: {
-  selectedEnv: string | undefined;
-  environments: Environment[];
-}) {
+function AppListView({ selectedEnv, environments }: { selectedEnv: string | undefined; environments: Environment[] }) {
   const { toast } = useToast();
+  const navigate = useNavigate();
   const { data: allApps = [], isLoading: allLoading } = useAllApps();
-  const { data: envApps = [], isLoading: envLoading } = useApps(
-    selectedEnv ? environments.find((e) => e.slug === selectedEnv)?.id : undefined,
-  );
+  const envId = useMemo(() => environments.find((e) => e.slug === selectedEnv)?.id, [environments, selectedEnv]);
+  const { data: envApps = [], isLoading: envLoading } = useApps(envId);
 
   const [creating, setCreating] = useState(false);
   const [newSlug, setNewSlug] = useState('');
@@ -101,70 +82,38 @@ function AppListView({
   const apps = selectedEnv ? envApps : allApps;
   const isLoading = selectedEnv ? envLoading : allLoading;
 
-  // Build enriched rows with environment name and latest deployment status
-  const envMap = useMemo(() => {
-    const m = new Map<string, Environment>();
-    for (const e of environments) m.set(e.id, e);
-    return m;
-  }, [environments]);
+  const envMap = useMemo(() => new Map(environments.map((e) => [e.id, e])), [environments]);
 
-  type AppRow = App & { envName: string };
+  type AppRow = App & { id: string; envName: string };
   const rows: AppRow[] = useMemo(
-    () => apps.map((a) => ({
-      ...a,
-      envName: envMap.get(a.environmentId)?.displayName ?? '?',
-    })),
+    () => apps.map((a) => ({ ...a, envName: envMap.get(a.environmentId)?.displayName ?? '?' })),
     [apps, envMap],
   );
 
   const columns: Column<AppRow>[] = useMemo(() => [
-    {
-      key: 'displayName',
-      header: 'Name',
-      render: (_val: unknown, row: AppRow) => (
-        <div>
-          <div className={styles.cellName}>{row.displayName}</div>
-          <div className={styles.cellMeta}>{row.slug}</div>
-        </div>
+    { key: 'displayName', header: 'Name', sortable: true,
+      render: (_v: unknown, row: AppRow) => (
+        <div><div className={styles.cellName}>{row.displayName}</div><div className={styles.cellMeta}>{row.slug}</div></div>
       ),
-      sortable: true,
     },
-    ...(!selectedEnv ? [{
-      key: 'envName',
-      header: 'Environment',
-      render: (_val: unknown, row: AppRow) => <Badge label={row.envName} color={'auto' as const} />,
-      sortable: true,
+    ...(!selectedEnv ? [{ key: 'envName', header: 'Environment', sortable: true,
+      render: (_v: unknown, row: AppRow) => <Badge label={row.envName} color={'auto' as const} />,
     }] : []),
-    {
-      key: 'updatedAt',
-      header: 'Updated',
-      render: (_val: unknown, row: AppRow) => <span className={styles.cellMeta}>{timeAgo(row.updatedAt)}</span>,
-      sortable: true,
+    { key: 'updatedAt', header: 'Updated', sortable: true,
+      render: (_v: unknown, row: AppRow) => <span className={styles.cellMeta}>{timeAgo(row.updatedAt)}</span>,
     },
-    {
-      key: 'createdAt',
-      header: 'Created',
-      render: (_val: unknown, row: AppRow) => <span className={styles.cellMeta}>{new Date(row.createdAt).toLocaleDateString()}</span>,
-      sortable: true,
+    { key: 'createdAt', header: 'Created', sortable: true,
+      render: (_v: unknown, row: AppRow) => <span className={styles.cellMeta}>{new Date(row.createdAt).toLocaleDateString()}</span>,
     },
   ], [selectedEnv]);
 
   async function handleCreate() {
     if (!newSlug.trim() || !newDisplayName.trim() || !newEnvId) return;
     try {
-      await createApp.mutateAsync({
-        environmentId: newEnvId,
-        slug: newSlug.trim(),
-        displayName: newDisplayName.trim(),
-      });
+      await createApp.mutateAsync({ environmentId: newEnvId, slug: newSlug.trim(), displayName: newDisplayName.trim() });
       toast({ title: 'App created', description: newSlug.trim(), variant: 'success' });
-      setCreating(false);
-      setNewSlug('');
-      setNewDisplayName('');
-      setNewEnvId('');
-    } catch {
-      toast({ title: 'Failed to create app', variant: 'error', duration: 86_400_000 });
-    }
+      setCreating(false); setNewSlug(''); setNewDisplayName(''); setNewEnvId('');
+    } catch { toast({ title: 'Failed to create app', variant: 'error', duration: 86_400_000 }); }
   }
 
   if (isLoading) return <Spinner size="md" />;
@@ -175,60 +124,34 @@ function AppListView({
         <Button size="sm" variant="primary" onClick={() => {
           if (!newEnvId && environments.length > 0) setNewEnvId(environments[0].id);
           setCreating(!creating);
-        }}>
-          + Create App
-        </Button>
+        }}>+ Create App</Button>
       </div>
-
       {creating && (
         <div className={styles.createForm}>
-          <select
-            className={styles.envSelect}
-            value={newEnvId}
-            onChange={(e) => setNewEnvId(e.target.value)}
-          >
-            {environments.map((env) => (
-              <option key={env.id} value={env.id}>{env.displayName} ({env.slug})</option>
-            ))}
+          <select className={styles.nativeSelect} value={newEnvId} onChange={(e) => setNewEnvId(e.target.value)}>
+            {environments.map((env) => <option key={env.id} value={env.id}>{env.displayName} ({env.slug})</option>)}
           </select>
           <Input placeholder="Slug *" value={newSlug} onChange={(e) => setNewSlug(e.target.value)} />
           <Input placeholder="Display name *" value={newDisplayName} onChange={(e) => setNewDisplayName(e.target.value)} />
           <div className={styles.createActions}>
             <Button size="sm" variant="ghost" onClick={() => setCreating(false)}>Cancel</Button>
-            <Button
-              size="sm"
-              variant="primary"
-              onClick={handleCreate}
-              loading={createApp.isPending}
-              disabled={!newSlug.trim() || !newDisplayName.trim() || !newEnvId}
-            >
-              Create
-            </Button>
+            <Button size="sm" variant="primary" onClick={handleCreate} loading={createApp.isPending}
+              disabled={!newSlug.trim() || !newDisplayName.trim() || !newEnvId}>Create</Button>
           </div>
         </div>
       )}
-
-      <DataTable
-        columns={columns}
-        data={rows}
-        onRowClick={(row) => {
-          window.location.href = `${window.location.pathname.replace(/\/apps.*/, '')}/apps/${row.id}`;
-        }}
-      />
+      <DataTable columns={columns} data={rows} onRowClick={(row) => navigate(`/apps/${row.id}`)} />
     </div>
   );
 }
 
-// --- Detail View ---
+// ═══════════════════════════════════════════════════════════════════
+//  DETAIL VIEW
+// ═══════════════════════════════════════════════════════════════════
 
-function AppDetailView({
-  appId,
-  environments,
-}: {
-  appId: string;
-  environments: Environment[];
-}) {
+function AppDetailView({ appId, environments, selectedEnv }: { appId: string; environments: Environment[]; selectedEnv: string | undefined }) {
   const { toast } = useToast();
+  const navigate = useNavigate();
   const { data: allApps = [] } = useAllApps();
   const app = useMemo(() => allApps.find((a) => a.id === appId), [allApps, appId]);
   const { data: versions = [] } = useAppVersions(appId);
@@ -238,21 +161,14 @@ function AppDetailView({
   const stopDeployment = useStopDeployment();
   const deleteApp = useDeleteApp();
   const fileInputRef = useRef<HTMLInputElement>(null);
+  const [subTab, setSubTab] = useState<'overview' | 'config'>('overview');
 
-  const envMap = useMemo(() => {
-    const m = new Map<string, Environment>();
-    for (const e of environments) m.set(e.id, e);
-    return m;
-  }, [environments]);
-
-  const sortedVersions = useMemo(
-    () => [...versions].sort((a, b) => b.version - a.version),
-    [versions],
-  );
+  const envMap = useMemo(() => new Map(environments.map((e) => [e.id, e])), [environments]);
+  const sortedVersions = useMemo(() => [...versions].sort((a, b) => b.version - a.version), [versions]);
 
   if (!app) return <Spinner size="md" />;
 
-  const envName = envMap.get(app.environmentId)?.displayName ?? '?';
+  const env = envMap.get(app.environmentId);
 
   async function handleUpload(e: React.ChangeEvent<HTMLInputElement>) {
     const file = e.target.files?.[0];
@@ -260,9 +176,7 @@ function AppDetailView({
     try {
       const v = await uploadJar.mutateAsync({ appId, file });
       toast({ title: `Version ${v.version} uploaded`, description: file.name, variant: 'success' });
-    } catch {
-      toast({ title: 'Upload failed', variant: 'error', duration: 86_400_000 });
-    }
+    } catch { toast({ title: 'Upload failed', variant: 'error', duration: 86_400_000 }); }
     if (fileInputRef.current) fileInputRef.current.value = '';
   }
 
@@ -270,28 +184,22 @@ function AppDetailView({
     try {
       await createDeployment.mutateAsync({ appId, appVersionId: versionId, environmentId });
       toast({ title: 'Deployment started', variant: 'success' });
-    } catch {
-      toast({ title: 'Deploy failed', variant: 'error', duration: 86_400_000 });
-    }
+    } catch { toast({ title: 'Deploy failed', variant: 'error', duration: 86_400_000 }); }
   }
 
   async function handleStop(deploymentId: string) {
     try {
       await stopDeployment.mutateAsync({ appId, deploymentId });
       toast({ title: 'Deployment stopped', variant: 'warning' });
-    } catch {
-      toast({ title: 'Stop failed', variant: 'error', duration: 86_400_000 });
-    }
+    } catch { toast({ title: 'Stop failed', variant: 'error', duration: 86_400_000 }); }
   }
 
   async function handleDelete() {
     try {
       await deleteApp.mutateAsync(appId);
       toast({ title: 'App deleted', variant: 'warning' });
-      window.history.back();
-    } catch {
-      toast({ title: 'Delete failed', variant: 'error', duration: 86_400_000 });
-    }
+      navigate('/apps');
+    } catch { toast({ title: 'Delete failed', variant: 'error', duration: 86_400_000 }); }
   }
 
   return (
@@ -300,216 +208,364 @@ function AppDetailView({
         <div>
           <h2 className={styles.detailTitle}>{app.displayName}</h2>
           <div className={styles.detailMeta}>
-            {app.slug} &middot; <Badge label={envName} color="auto" />
+            {app.slug} &middot; <Badge label={env?.displayName ?? '?'} color="auto" />
           </div>
         </div>
-        <Button size="sm" variant="danger" onClick={handleDelete}>Delete</Button>
+        <div className={styles.detailActions}>
+          <input ref={fileInputRef} type="file" accept=".jar" style={{ display: 'none' }} onChange={handleUpload} />
+          <Button size="sm" variant="primary" onClick={() => fileInputRef.current?.click()} loading={uploadJar.isPending}>Upload JAR</Button>
+          <Button size="sm" variant="danger" onClick={handleDelete}>Delete App</Button>
+        </div>
       </div>
 
-      <div className={styles.metaGrid}>
-        <span className={styles.metaLabel}>ID</span>
-        <MonoText size="xs">{app.id}</MonoText>
-        <span className={styles.metaLabel}>Environment</span>
-        <span>{envName}</span>
-        <span className={styles.metaLabel}>Created</span>
-        <span>{new Date(app.createdAt).toLocaleDateString()}</span>
-        <span className={styles.metaLabel}>Updated</span>
-        <span>{timeAgo(app.updatedAt)}</span>
+      <div className={styles.subTabs}>
+        <button className={`${styles.subTab} ${subTab === 'overview' ? styles.subTabActive : ''}`} onClick={() => setSubTab('overview')}>Overview</button>
+        <button className={`${styles.subTab} ${subTab === 'config' ? styles.subTabActive : ''}`} onClick={() => setSubTab('config')}>Configuration</button>
       </div>
 
-      {/* Deployments across all environments */}
-      <SectionHeader>Deployments ({deployments.length})</SectionHeader>
-      {deployments.length === 0 && <p className={styles.emptyNote}>No deployments yet.</p>}
-      {deployments.map((d) => (
-        <DeploymentRow
-          key={d.id}
-          deployment={d}
-          versions={versions}
-          envMap={envMap}
-          onStop={() => handleStop(d.id)}
+      {subTab === 'overview' && (
+        <OverviewSubTab
+          app={app} deployments={deployments} versions={sortedVersions}
+          environments={environments} envMap={envMap} selectedEnv={selectedEnv}
+          onDeploy={handleDeploy} onStop={handleStop}
         />
-      ))}
-
-      {/* Versions */}
-      <SectionHeader>Versions ({versions.length})</SectionHeader>
-      <div style={{ marginBottom: 8 }}>
-        <input ref={fileInputRef} type="file" accept=".jar" style={{ display: 'none' }} onChange={handleUpload} />
-        <Button size="sm" variant="secondary" onClick={() => fileInputRef.current?.click()} loading={uploadJar.isPending}>
-          Upload JAR
-        </Button>
-      </div>
-      {sortedVersions.length === 0 && <p className={styles.emptyNote}>No versions uploaded yet.</p>}
-      {sortedVersions.map((v) => (
-        <VersionRow
-          key={v.id}
-          version={v}
-          environments={environments}
-          onDeploy={(envId) => handleDeploy(v.id, envId)}
-        />
-      ))}
-
-      {/* Container Config */}
-      <SectionHeader>Container Configuration</SectionHeader>
-      <ContainerConfigForm app={app} environment={envMap.get(app.environmentId)} />
+      )}
+      {subTab === 'config' && (
+        <ConfigSubTab app={app} environment={env} />
+      )}
     </div>
   );
 }
 
-// --- Deployment Row ---
+// ═══════════════════════════════════════════════════════════════════
+//  OVERVIEW SUB-TAB
+// ═══════════════════════════════════════════════════════════════════
 
-function DeploymentRow({
-  deployment,
-  versions,
-  envMap,
-  onStop,
-}: {
-  deployment: Deployment;
-  versions: AppVersion[];
-  envMap: Map<string, Environment>;
-  onStop: () => void;
+function OverviewSubTab({ app, deployments, versions, environments, envMap, selectedEnv, onDeploy, onStop }: {
+  app: App; deployments: Deployment[]; versions: AppVersion[];
+  environments: Environment[]; envMap: Map<string, Environment>;
+  selectedEnv: string | undefined;
+  onDeploy: (versionId: string, envId: string) => void;
+  onStop: (deploymentId: string) => void;
 }) {
-  const version = versions.find((v) => v.id === deployment.appVersionId);
-  const env = envMap.get(deployment.environmentId);
-  const canStop = deployment.status === 'RUNNING' || deployment.status === 'STARTING';
+  // Determine which env slug is selected
+  const selectedEnvId = useMemo(
+    () => selectedEnv ? environments.find((e) => e.slug === selectedEnv)?.id : undefined,
+    [environments, selectedEnv],
+  );
 
   return (
-    <div className={styles.row}>
-      <Badge label={deployment.status} color={STATUS_COLORS[deployment.status] ?? 'auto'} />
-      <Badge label={env?.displayName ?? '?'} color="auto" />
-      <span className={styles.rowText}>{version ? `v${version.version}` : '?'}</span>
-      {deployment.containerName && <MonoText size="xs">{deployment.containerName}</MonoText>}
-      {deployment.errorMessage && <span className={styles.errorText}>{deployment.errorMessage}</span>}
-      <span className={styles.rowMeta}>{deployment.deployedAt ? timeAgo(deployment.deployedAt) : ''}</span>
-      {canStop && <Button size="sm" variant="danger" onClick={onStop}>Stop</Button>}
-    </div>
+    <>
+      <SectionHeader>Deployments</SectionHeader>
+      {deployments.length === 0 && <p className={styles.emptyNote}>No deployments yet.</p>}
+      {deployments.length > 0 && (
+        <table className={styles.table}>
+          <thead>
+            <tr>
+              <th>Environment</th>
+              <th>Version</th>
+              <th>Status</th>
+              <th>URL</th>
+              <th>Deployed</th>
+              <th style={{ textAlign: 'right' }}>Actions</th>
+            </tr>
+          </thead>
+          <tbody>
+            {deployments.map((d) => {
+              const dEnv = envMap.get(d.environmentId);
+              const version = versions.find((v) => v.id === d.appVersionId);
+              const isSelectedEnv = !selectedEnvId || d.environmentId === selectedEnvId;
+              const canAct = isSelectedEnv && (d.status === 'RUNNING' || d.status === 'STARTING');
+              const canStart = isSelectedEnv && d.status === 'STOPPED';
+              const url = dEnv ? `/${dEnv.slug}/${app.slug}/` : '';
+
+              return (
+                <tr key={d.id} className={!isSelectedEnv ? styles.mutedRow : undefined}>
+                  <td>
+                    <Badge label={dEnv?.displayName ?? '?'} color={dEnv?.production ? 'error' : 'auto'} />
+                  </td>
+                  <td><Badge label={version ? `v${version.version}` : '?'} color="auto" /></td>
+                  <td><Badge label={d.status} color={STATUS_COLORS[d.status] ?? 'auto'} /></td>
+                  <td>
+                    {d.status === 'RUNNING' ? (
+                      <MonoText size="xs">{url}</MonoText>
+                    ) : (
+                      <span className={styles.mutedMono}>{url}</span>
+                    )}
+                  </td>
+                  <td><span className={styles.cellMeta}>{d.deployedAt ? timeAgo(d.deployedAt) : '—'}</span></td>
+                  <td style={{ textAlign: 'right' }}>
+                    {canAct && <Button size="sm" variant="danger" onClick={() => onStop(d.id)}>Stop</Button>}
+                    {canStart && <Button size="sm" variant="secondary" onClick={() => onDeploy(d.appVersionId, d.environmentId)}>Start</Button>}
+                    {!isSelectedEnv && <span className={styles.envHint}>switch env to manage</span>}
+                  </td>
+                </tr>
+              );
+            })}
+          </tbody>
+        </table>
+      )}
+
+      <SectionHeader>Versions ({versions.length})</SectionHeader>
+      {versions.length === 0 && <p className={styles.emptyNote}>No versions uploaded yet.</p>}
+      {versions.map((v) => (
+        <VersionRow key={v.id} version={v} environments={environments} onDeploy={(envId) => onDeploy(v.id, envId)} />
+      ))}
+    </>
   );
 }
 
-// --- Version Row ---
-
-function VersionRow({
-  version,
-  environments,
-  onDeploy,
-}: {
-  version: AppVersion;
-  environments: Environment[];
-  onDeploy: (environmentId: string) => void;
-}) {
+function VersionRow({ version, environments, onDeploy }: { version: AppVersion; environments: Environment[]; onDeploy: (envId: string) => void }) {
   const [deployEnv, setDeployEnv] = useState('');
-
   return (
     <div className={styles.row}>
       <Badge label={`v${version.version}`} color="auto" />
-      <span className={styles.rowText}>
-        {version.jarFilename} ({formatBytes(version.jarSizeBytes)})
-      </span>
-      <span className={styles.rowMeta}>{timeAgo(version.uploadedAt)}</span>
-      <select
-        className={styles.envSelect}
-        value={deployEnv}
-        onChange={(e) => setDeployEnv(e.target.value)}
-      >
+      <span className={styles.rowText}>{version.jarFilename} ({formatBytes(version.jarSizeBytes)})</span>
+      <MonoText size="xs">{version.jarChecksum.substring(0, 8)}</MonoText>
+      <span className={styles.cellMeta}>{timeAgo(version.uploadedAt)}</span>
+      <select className={styles.nativeSelect} value={deployEnv} onChange={(e) => setDeployEnv(e.target.value)}>
         <option value="">Deploy to...</option>
-        {environments.filter((e) => e.enabled).map((e) => (
-          <option key={e.id} value={e.id}>{e.displayName}</option>
-        ))}
+        {environments.filter((e) => e.enabled).map((e) => <option key={e.id} value={e.id}>{e.displayName}</option>)}
       </select>
-      <Button
-        size="sm"
-        variant="secondary"
-        disabled={!deployEnv}
-        onClick={() => { onDeploy(deployEnv); setDeployEnv(''); }}
-      >
-        Deploy
-      </Button>
+      <Button size="sm" variant="secondary" disabled={!deployEnv} onClick={() => { onDeploy(deployEnv); setDeployEnv(''); }}>Deploy</Button>
     </div>
   );
 }
 
-// --- Container Config Form ---
+// ═══════════════════════════════════════════════════════════════════
+//  CONFIGURATION SUB-TAB
+// ═══════════════════════════════════════════════════════════════════
 
-function ContainerConfigForm({ app, environment }: { app: App; environment?: Environment }) {
+function ConfigSubTab({ app, environment }: { app: App; environment?: Environment }) {
   const { toast } = useToast();
-  const updateConfig = useUpdateContainerConfig();
+  const { data: agentConfig } = useApplicationConfig(app.slug);
+  const updateAgentConfig = useUpdateApplicationConfig();
+  const updateContainerConfig = useUpdateContainerConfig();
   const isProd = environment?.production ?? false;
+  const [editing, setEditing] = useState(false);
 
+  // Agent config state
+  const [engineLevel, setEngineLevel] = useState('REGULAR');
+  const [payloadCapture, setPayloadCapture] = useState('BOTH');
+  const [payloadSize, setPayloadSize] = useState('4');
+  const [payloadUnit, setPayloadUnit] = useState('KB');
+  const [appLogLevel, setAppLogLevel] = useState('INFO');
+  const [agentLogLevel, setAgentLogLevel] = useState('INFO');
+  const [metricsEnabled, setMetricsEnabled] = useState(true);
+  const [metricsInterval, setMetricsInterval] = useState('60');
+  const [samplingRate, setSamplingRate] = useState('1.0');
+  const [replayEnabled, setReplayEnabled] = useState(true);
+  const [routeControlEnabled, setRouteControlEnabled] = useState(true);
+
+  // Container config state
   const defaults = environment?.defaultContainerConfig ?? {};
-  const merged = { ...defaults, ...app.containerConfig };
+  const merged = useMemo(() => ({ ...defaults, ...app.containerConfig }), [defaults, app.containerConfig]);
+  const [memoryLimit, setMemoryLimit] = useState('512');
+  const [memoryReserve, setMemoryReserve] = useState('');
+  const [cpuShares, setCpuShares] = useState('512');
+  const [cpuLimit, setCpuLimit] = useState('');
+  const [ports, setPorts] = useState<number[]>([]);
+  const [newPort, setNewPort] = useState('');
+  const [envVars, setEnvVars] = useState<{ key: string; value: string }[]>([]);
 
-  const [memoryLimitMb, setMemoryLimitMb] = useState<string>(String(merged.memoryLimitMb ?? '512'));
-  const [memoryReserveMb, setMemoryReserveMb] = useState<string>(String(merged.memoryReserveMb ?? ''));
-  const [cpuShares, setCpuShares] = useState<string>(String(merged.cpuShares ?? '512'));
-  const [cpuLimit, setCpuLimit] = useState<string>(String(merged.cpuLimit ?? ''));
-  const [exposedPorts, setExposedPorts] = useState<string>(
-    Array.isArray(merged.exposedPorts) ? (merged.exposedPorts as number[]).join(', ') : '',
-  );
-  const [customEnvVars, setCustomEnvVars] = useState<string>(
-    merged.customEnvVars ? JSON.stringify(merged.customEnvVars, null, 2) : '{}',
-  );
+  // Sync from server data
+  const syncFromServer = useCallback(() => {
+    if (agentConfig) {
+      setEngineLevel(agentConfig.engineLevel ?? 'REGULAR');
+      setPayloadCapture(agentConfig.payloadCaptureMode ?? 'BOTH');
+      const raw = agentConfig.payloadCaptureMode !== undefined ? 4096 : 4096; // TODO: read from config when available
+      setPayloadSize('4'); setPayloadUnit('KB');
+      setAppLogLevel(agentConfig.applicationLogLevel ?? 'INFO');
+      setAgentLogLevel(agentConfig.agentLogLevel ?? 'INFO');
+      setMetricsEnabled(agentConfig.metricsEnabled);
+      setSamplingRate(String(agentConfig.samplingRate));
+    }
+    setMemoryLimit(String(merged.memoryLimitMb ?? 512));
+    setMemoryReserve(String(merged.memoryReserveMb ?? ''));
+    setCpuShares(String(merged.cpuShares ?? 512));
+    setCpuLimit(String(merged.cpuLimit ?? ''));
+    setPorts(Array.isArray(merged.exposedPorts) ? merged.exposedPorts as number[] : []);
+    const vars = merged.customEnvVars as Record<string, string> | undefined;
+    setEnvVars(vars ? Object.entries(vars).map(([key, value]) => ({ key, value })) : []);
+  }, [agentConfig, merged]);
+
+  useEffect(() => { syncFromServer(); }, [syncFromServer]);
+
+  function handleCancel() {
+    syncFromServer();
+    setEditing(false);
+  }
+
+  function payloadSizeToBytes(): number {
+    const val = parseFloat(payloadSize) || 0;
+    if (payloadUnit === 'KB') return val * 1024;
+    if (payloadUnit === 'MB') return val * 1048576;
+    return val;
+  }
 
   async function handleSave() {
-    const config: Record<string, unknown> = {
-      memoryLimitMb: memoryLimitMb ? parseInt(memoryLimitMb) : null,
-      memoryReserveMb: memoryReserveMb ? parseInt(memoryReserveMb) : null,
+    // Save agent config
+    if (agentConfig) {
+      try {
+        await updateAgentConfig.mutateAsync({
+          ...agentConfig,
+          engineLevel, payloadCaptureMode: payloadCapture,
+          applicationLogLevel: appLogLevel, agentLogLevel,
+          metricsEnabled, samplingRate: parseFloat(samplingRate) || 1.0,
+        });
+      } catch { toast({ title: 'Failed to save agent config', variant: 'error', duration: 86_400_000 }); return; }
+    }
+
+    // Save container config
+    const containerConfig: Record<string, unknown> = {
+      memoryLimitMb: memoryLimit ? parseInt(memoryLimit) : null,
+      memoryReserveMb: memoryReserve ? parseInt(memoryReserve) : null,
       cpuShares: cpuShares ? parseInt(cpuShares) : null,
       cpuLimit: cpuLimit ? parseFloat(cpuLimit) : null,
-      exposedPorts: exposedPorts ? exposedPorts.split(',').map((p) => parseInt(p.trim())).filter((p) => !isNaN(p)) : [],
+      exposedPorts: ports,
+      customEnvVars: Object.fromEntries(envVars.filter((v) => v.key.trim()).map((v) => [v.key, v.value])),
     };
     try {
-      config.customEnvVars = JSON.parse(customEnvVars);
-    } catch {
-      toast({ title: 'Invalid JSON in environment variables', variant: 'error' });
-      return;
-    }
-    try {
-      await updateConfig.mutateAsync({ appId: app.id, config });
-      toast({ title: 'Container config saved', variant: 'success' });
-    } catch {
-      toast({ title: 'Failed to save config', variant: 'error', duration: 86_400_000 });
-    }
+      await updateContainerConfig.mutateAsync({ appId: app.id, config: containerConfig });
+      toast({ title: 'Configuration saved', variant: 'success' });
+      setEditing(false);
+    } catch { toast({ title: 'Failed to save container config', variant: 'error', duration: 86_400_000 }); }
+  }
+
+  function addPort() {
+    const p = parseInt(newPort);
+    if (p && !ports.includes(p)) { setPorts([...ports, p]); setNewPort(''); }
   }
 
   return (
-    <div className={styles.configForm}>
-      <div className={styles.configSection}>
-        <h4 className={styles.configTitle}>Resources</h4>
-        <div className={styles.configGrid}>
-          <label className={styles.configLabel}>Memory Limit (MB)</label>
-          <Input value={memoryLimitMb} onChange={(e) => setMemoryLimitMb(e.target.value)} placeholder="512" />
-          <label className={styles.configLabel}>Memory Reserve (MB)</label>
-          <div className={styles.configField}>
-            <Input
-              value={memoryReserveMb}
-              onChange={(e) => setMemoryReserveMb(e.target.value)}
-              placeholder="—"
-              disabled={!isProd}
-            />
-            {!isProd && <span className={styles.configHint}>Available in production environments only</span>}
+    <>
+      {!editing && (
+        <div className={styles.editBanner}>
+          <span className={styles.editBannerText}>Configuration is read-only. Enter edit mode to make changes.</span>
+          <Button size="sm" variant="secondary" onClick={() => setEditing(true)}>Edit</Button>
+        </div>
+      )}
+      {editing && (
+        <div className={`${styles.editBanner} ${styles.editBannerActive}`}>
+          <span className={styles.editBannerTextWarn}>Editing configuration. Changes are not saved until you click Save.</span>
+          <div className={styles.editBannerActions}>
+            <Button size="sm" variant="ghost" onClick={handleCancel}>Cancel</Button>
+            <Button size="sm" variant="primary" onClick={handleSave}
+              loading={updateAgentConfig.isPending || updateContainerConfig.isPending}>Save Configuration</Button>
           </div>
-          <label className={styles.configLabel}>CPU Shares</label>
-          <Input value={cpuShares} onChange={(e) => setCpuShares(e.target.value)} placeholder="512" />
-          <label className={styles.configLabel}>CPU Limit (cores)</label>
-          <Input value={cpuLimit} onChange={(e) => setCpuLimit(e.target.value)} placeholder="e.g. 1.0" />
-          <label className={styles.configLabel}>Exposed Ports</label>
-          <Input value={exposedPorts} onChange={(e) => setExposedPorts(e.target.value)} placeholder="e.g. 8080, 9090" />
+        </div>
+      )}
+
+      {/* Agent Observability */}
+      <SectionHeader>Agent Observability</SectionHeader>
+      <div className={styles.configGrid}>
+        <span className={styles.configLabel}>Engine Level</span>
+        <Select disabled={!editing} value={engineLevel} onChange={(e) => setEngineLevel(e.target.value)}
+          options={[{ value: 'NONE', label: 'NONE' }, { value: 'MINIMAL', label: 'MINIMAL' }, { value: 'REGULAR', label: 'REGULAR' }, { value: 'COMPLETE', label: 'COMPLETE' }]} />
+
+        <span className={styles.configLabel}>Payload Capture</span>
+        <Select disabled={!editing} value={payloadCapture} onChange={(e) => setPayloadCapture(e.target.value)}
+          options={[{ value: 'NONE', label: 'NONE' }, { value: 'INPUT', label: 'INPUT' }, { value: 'OUTPUT', label: 'OUTPUT' }, { value: 'BOTH', label: 'BOTH' }]} />
+
+        <span className={styles.configLabel}>Max Payload Size</span>
+        <div className={styles.configInline}>
+          <Input disabled={!editing} value={payloadSize} onChange={(e) => setPayloadSize(e.target.value)} style={{ width: 70 }} />
+          <Select disabled={!editing} value={payloadUnit} onChange={(e) => setPayloadUnit(e.target.value)} style={{ width: 90 }}
+            options={[{ value: 'bytes', label: 'bytes' }, { value: 'KB', label: 'KB' }, { value: 'MB', label: 'MB' }]} />
+        </div>
+
+        <span className={styles.configLabel}>App Log Level</span>
+        <Select disabled={!editing} value={appLogLevel} onChange={(e) => setAppLogLevel(e.target.value)}
+          options={['TRACE', 'DEBUG', 'INFO', 'WARN', 'ERROR'].map((l) => ({ value: l, label: l }))} />
+
+        <span className={styles.configLabel}>Agent Log Level</span>
+        <Select disabled={!editing} value={agentLogLevel} onChange={(e) => setAgentLogLevel(e.target.value)}
+          options={['TRACE', 'DEBUG', 'INFO', 'WARN', 'ERROR'].map((l) => ({ value: l, label: l }))} />
+
+        <span className={styles.configLabel}>Metrics</span>
+        <div className={styles.configInline}>
+          <Toggle checked={metricsEnabled} onChange={() => editing && setMetricsEnabled(!metricsEnabled)} disabled={!editing} />
+          <span className={metricsEnabled ? styles.toggleEnabled : styles.toggleDisabled}>{metricsEnabled ? 'Enabled' : 'Disabled'}</span>
+          <span className={styles.cellMeta} style={{ marginLeft: 8 }}>Interval</span>
+          <Input disabled={!editing} value={metricsInterval} onChange={(e) => setMetricsInterval(e.target.value)} style={{ width: 50 }} />
+          <span className={styles.cellMeta}>s</span>
+        </div>
+
+        <span className={styles.configLabel}>Sampling Rate</span>
+        <Input disabled={!editing} value={samplingRate} onChange={(e) => setSamplingRate(e.target.value)} style={{ width: 80 }} />
+
+        <span className={styles.configLabel}>Replay</span>
+        <div className={styles.configInline}>
+          <Toggle checked={replayEnabled} onChange={() => editing && setReplayEnabled(!replayEnabled)} disabled={!editing} />
+          <span className={replayEnabled ? styles.toggleEnabled : styles.toggleDisabled}>{replayEnabled ? 'Enabled' : 'Disabled'}</span>
+        </div>
+
+        <span className={styles.configLabel}>Route Control</span>
+        <div className={styles.configInline}>
+          <Toggle checked={routeControlEnabled} onChange={() => editing && setRouteControlEnabled(!routeControlEnabled)} disabled={!editing} />
+          <span className={routeControlEnabled ? styles.toggleEnabled : styles.toggleDisabled}>{routeControlEnabled ? 'Enabled' : 'Disabled'}</span>
         </div>
       </div>
 
-      <div className={styles.configSection}>
-        <h4 className={styles.configTitle}>Custom Environment Variables</h4>
-        <textarea
-          className={styles.envVarEditor}
-          value={customEnvVars}
-          onChange={(e) => setCustomEnvVars(e.target.value)}
-          rows={6}
-          spellCheck={false}
-        />
+      {/* Container Resources */}
+      <SectionHeader>Container Resources</SectionHeader>
+      <div className={styles.configGrid}>
+        <span className={styles.configLabel}>Memory Limit</span>
+        <div className={styles.configInline}>
+          <Input disabled={!editing} value={memoryLimit} onChange={(e) => setMemoryLimit(e.target.value)} style={{ width: 80 }} />
+          <span className={styles.cellMeta}>MB</span>
+        </div>
+
+        <span className={styles.configLabel}>Memory Reserve</span>
+        <div>
+          <div className={styles.configInline}>
+            <Input disabled value={memoryReserve} onChange={(e) => setMemoryReserve(e.target.value)} placeholder="---" style={{ width: 80 }} />
+            <span className={styles.cellMeta}>MB</span>
+          </div>
+          {!isProd && <span className={styles.configHint}>Available in production environments only</span>}
+        </div>
+
+        <span className={styles.configLabel}>CPU Shares</span>
+        <Input disabled={!editing} value={cpuShares} onChange={(e) => setCpuShares(e.target.value)} style={{ width: 80 }} />
+
+        <span className={styles.configLabel}>CPU Limit</span>
+        <div className={styles.configInline}>
+          <Input disabled={!editing} value={cpuLimit} onChange={(e) => setCpuLimit(e.target.value)} placeholder="e.g. 1.0" style={{ width: 80 }} />
+          <span className={styles.cellMeta}>cores</span>
+        </div>
+
+        <span className={styles.configLabel}>Exposed Ports</span>
+        <div className={styles.portPills}>
+          {ports.map((p) => (
+            <span key={p} className={styles.portPill}>
+              {p}
+              <button className={styles.portPillDelete} disabled={!editing}
+                onClick={() => editing && setPorts(ports.filter((x) => x !== p))}>&times;</button>
+            </span>
+          ))}
+          <input className={styles.portAddInput} disabled={!editing} placeholder="+ port" value={newPort}
+            onChange={(e) => setNewPort(e.target.value)}
+            onKeyDown={(e) => { if (e.key === 'Enter') { e.preventDefault(); addPort(); } }} />
+        </div>
       </div>
 
-      <Button variant="primary" onClick={handleSave} loading={updateConfig.isPending}>
-        Save Configuration
-      </Button>
-    </div>
+      {/* Environment Variables */}
+      <SectionHeader>Environment Variables</SectionHeader>
+      {envVars.map((v, i) => (
+        <div key={i} className={styles.envVarRow}>
+          <Input disabled={!editing} value={v.key} onChange={(e) => {
+            const next = [...envVars]; next[i] = { ...v, key: e.target.value }; setEnvVars(next);
+          }} className={styles.envVarKey} />
+          <Input disabled={!editing} value={v.value} onChange={(e) => {
+            const next = [...envVars]; next[i] = { ...v, value: e.target.value }; setEnvVars(next);
+          }} className={styles.envVarValue} />
+          <button className={styles.envVarDelete} disabled={!editing}
+            onClick={() => editing && setEnvVars(envVars.filter((_, j) => j !== i))}>&times;</button>
+        </div>
+      ))}
+      {editing && (
+        <Button size="sm" variant="secondary" onClick={() => setEnvVars([...envVars, { key: '', value: '' }])}>+ Add Variable</Button>
+      )}
+    </>
   );
 }