feat(canvas): brand tech icons on services, matching site preview

Resolve a service's tech (postgres, redis, go, node, nginx, kafka,
~50 slugs) from its image/name and render the Simple Icons logo in
the tinted icon tile — canvas nodes, inspector, service detail
header, and database rows — with graceful fallback to type icons.
Demo services get resolvable images, ports, and domains; a Redis
Cache service joins Core Platform so the demo canvas mirrors the
landing preview (5 services, web/api/worker → api → postgres/redis).

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

app/frontend/src/lib/demo-data.ts

@@ -10,9 +10,9 @@ export const demoProjects: ProjectEntity[] = [
     createdAt: '2026-03-12T09:30:00Z',
     updatedAt: '2026-03-31T09:10:00Z',
     stats: {
-      service_count: 4,
+      service_count: 5,
       deployment_count: 27,
-      running_services: 3,
+      running_services: 4,
       last_deployment: '2026-03-31T08:42:00Z',
     },
   },
@@ -55,9 +55,11 @@ export const demoServicesByProject: Record<string, ServiceEntity[]> = {
       type: 'web',
       status: 'running',
       environment: 'production',
-      image: 'ghcr.io/containr/web:2026.03.31',
+      image: 'ghcr.io/containr/web-react:v42',
       command: 'npm run serve',
       gitBranch: 'main',
+      port: 3000,
+      domain: 'web.containr.local',
       createdAt: '2026-03-12T10:00:00Z',
       updatedAt: '2026-03-31T08:42:00Z',
     },
@@ -68,9 +70,11 @@ export const demoServicesByProject: Record<string, ServiceEntity[]> = {
       type: 'web',
       status: 'running',
       environment: 'production',
-      image: 'ghcr.io/containr/api:2026.03.31',
+      image: 'ghcr.io/containr/api-go:v2.4.1',
       command: './server',
       gitBranch: 'main',
+      port: 8080,
+      domain: 'api.containr.local',
       createdAt: '2026-03-12T10:02:00Z',
       updatedAt: '2026-03-31T08:43:00Z',
     },
@@ -81,9 +85,10 @@ export const demoServicesByProject: Record<string, ServiceEntity[]> = {
       type: 'worker',
       status: 'building',
       environment: 'production',
-      image: 'ghcr.io/containr/worker:2026.03.31',
+      image: 'ghcr.io/containr/worker:edge',
       command: './worker',
       gitBranch: 'main',
+      port: 9100,
       createdAt: '2026-03-12T10:05:00Z',
       updatedAt: '2026-03-31T08:44:00Z',
     },
@@ -94,12 +99,27 @@ export const demoServicesByProject: Record<string, ServiceEntity[]> = {
       type: 'database',
       status: 'running',
       environment: 'production',
-      image: 'postgres:15-alpine',
+      image: 'postgres:16',
       command: 'postgres',
       gitBranch: 'main',
+      port: 5432,
       createdAt: '2026-03-12T10:08:00Z',
       updatedAt: '2026-03-31T08:40:00Z',
     },
+    {
+      id: 'demo-svc-redis',
+      projectId: 'demo-project-core',
+      name: 'Redis Cache',
+      type: 'database',
+      status: 'running',
+      environment: 'production',
+      image: 'dragonfly:1.25',
+      command: 'redis-server',
+      gitBranch: 'main',
+      port: 6379,
+      createdAt: '2026-03-12T10:12:00Z',
+      updatedAt: '2026-03-31T08:40:00Z',
+    },
   ],
   'demo-project-growth': [
     {
@@ -109,9 +129,11 @@ export const demoServicesByProject: Record<string, ServiceEntity[]> = {
       type: 'web',
       status: 'running',
       environment: 'production',
-      image: 'ghcr.io/containr/marketing:latest',
-      command: 'npm run start',
+      image: 'nginx:1.27-alpine',
+      command: 'nginx -g daemon off;',
       gitBranch: 'main',
+      port: 8080,
+      domain: 'growth.containr.local',
       createdAt: '2026-03-03T09:00:00Z',
       updatedAt: '2026-03-30T12:10:00Z',
     },
@@ -122,9 +144,10 @@ export const demoServicesByProject: Record<string, ServiceEntity[]> = {
       type: 'web',
       status: 'running',
       environment: 'production',
-      image: 'ghcr.io/containr/campaign-api:latest',
+      image: 'node:20-alpine',
       command: './api',
       gitBranch: 'main',
+      port: 3000,
       createdAt: '2026-03-03T09:04:00Z',
       updatedAt: '2026-03-30T12:08:00Z',
     },
@@ -135,9 +158,10 @@ export const demoServicesByProject: Record<string, ServiceEntity[]> = {
       type: 'database',
       status: 'running',
       environment: 'production',
-      image: 'redis:7-alpine',
+      image: 'dragonfly:1.25',
       command: 'redis-server',
       gitBranch: 'main',
+      port: 6379,
       createdAt: '2026-03-03T09:07:00Z',
       updatedAt: '2026-03-30T12:07:00Z',
     },
@@ -150,9 +174,10 @@ export const demoServicesByProject: Record<string, ServiceEntity[]> = {
       type: 'web',
       status: 'running',
       environment: 'production',
-      image: 'ghcr.io/containr/inference-api:latest',
+      image: 'python:3.12-slim',
       command: './serve',
       gitBranch: 'main',
+      port: 8000,
       createdAt: '2026-02-18T08:00:00Z',
       updatedAt: '2026-03-29T18:00:00Z',
     },
@@ -163,7 +188,7 @@ export const demoServicesByProject: Record<string, ServiceEntity[]> = {
       type: 'worker',
       status: 'failed',
       environment: 'production',
-      image: 'ghcr.io/containr/evaluator:latest',
+      image: 'python:3.12-slim',
       command: './run-jobs',
       gitBranch: 'main',
       createdAt: '2026-02-18T08:03:00Z',
@@ -195,6 +220,7 @@ export const demoVariablesByProject: Record<string, Record<string, ServiceVariab
       ] satisfies ServiceVariable[]
     ),
     'demo-svc-postgres': [],
+    'demo-svc-redis': [],
   },
   'demo-project-growth': {
     'demo-growth-site': (