feat: active config snapshot, composite StatusDot with tooltip

Part 1 — Config snapshot:
- V8 migration adds resolved_config JSONB to deployments table
- DeploymentExecutor saves the full resolved config at deploy time
- Deployment record includes resolvedConfig for auditability

Part 2 — Composite health StatusDot:
- CatalogController computes composite health from deployment status +
  agent health (green only when RUNNING AND agent live)
- CatalogApp includes healthTooltip (e.g. "Deployment: RUNNING,
  Agents: live (1 connected)")
- StatusDot added to app detail header with deployment status Badge
- StatusDot added to deployment table rows
- Sidebar passes composite health + tooltip through to tree nodes

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

ui/src/components/sidebar-utils.ts

@@ -1,4 +1,4 @@
-import type { ReactNode } from 'react';
+import { createElement, type ReactNode } from 'react';
 import type { SidebarTreeNode } from '@cameleer/design-system';
 
 /* ------------------------------------------------------------------ */
@@ -15,7 +15,8 @@ export interface SidebarRoute {
 export interface SidebarApp {
   id: string;
   name: string;
-  health: 'live' | 'stale' | 'dead';
+  health: 'live' | 'stale' | 'dead' | 'running' | 'error';
+  healthTooltip?: string;
   exchangeCount: number;
   routes: SidebarRoute[];
 }
@@ -70,7 +71,9 @@ export function buildAppTreeNodes(
   return apps.map((app) => ({
     id: app.id,
     label: app.name,
-    icon: statusDot(app.health),
+    icon: app.healthTooltip
+      ? createElement('span', { title: app.healthTooltip }, statusDot(app.health))
+      : statusDot(app.health),
     badge: formatCount(app.exchangeCount),
     path: `/exchanges/${app.id}`,
     starrable: true,