Add status route tests, OG images blog post, and blog tests

- Create src/routes/__tests__/status.test.ts (GET /status and /status.html)
- Add blog post: public/blog/automating-og-images.html (~1000 words)
- Update public/blog.html with new post entry
- Update public/sitemap.xml with new URL
- Add blog tests for automating-og-images post
- Update existing blog tests for new post references

Tests: 332 passed, 1 skipped

src/routes/__tests__/blog.test.ts

@@ -51,11 +51,12 @@ describe('Blog Index Page', () => {
     expect(html).toContain('"@type":"Blog"')
   })
 
-  it('links to both blog posts', async () => {
+  it('links to all blog posts', async () => {
     const res = await request(app).get('/blog.html')
     const html = res.text
     expect(html).toContain('/blog/why-screenshot-api')
     expect(html).toContain('/blog/screenshot-api-performance')
+    expect(html).toContain('/blog/automating-og-images')
   })
 })
 
@@ -153,12 +154,60 @@ describe('Blog Post: Screenshot API Performance', () => {
   })
 })
 
+describe('Blog Post: Automating OG Images', () => {
+  const app = createApp()
+
+  it('GET /blog/automating-og-images.html returns 200', async () => {
+    const res = await request(app).get('/blog/automating-og-images.html')
+    expect(res.status).toBe(200)
+    expect(res.headers['content-type']).toContain('text/html')
+  })
+
+  it('GET /blog/automating-og-images redirects 301 to .html', async () => {
+    const res = await request(app).get('/blog/automating-og-images')
+    expect(res.status).toBe(301)
+    expect(res.headers.location).toBe('/blog/automating-og-images.html')
+  })
+
+  it('contains required SEO elements', async () => {
+    const res = await request(app).get('/blog/automating-og-images.html')
+    const html = res.text
+    expect(html).toMatch(/<title>.+<\/title>/)
+    expect(html).toMatch(/<meta name="description" content=".+"/)
+    expect(html).toMatch(/<meta property="og:title"/)
+    expect(html).toMatch(/<meta property="og:description"/)
+    expect(html).toMatch(/<link rel="canonical" href="https:\/\/snapapi\.eu\/blog\/automating-og-images"/)
+    expect(html).toMatch(/<meta name="twitter:card"/)
+  })
+
+  it('contains JSON-LD BlogPosting schema', async () => {
+    const res = await request(app).get('/blog/automating-og-images.html')
+    const html = res.text
+    expect(html).toContain('"@type":"BlogPosting"')
+  })
+
+  it('has substantial content (~800 words)', async () => {
+    const res = await request(app).get('/blog/automating-og-images.html')
+    const text = res.text.replace(/<[^>]+>/g, ' ').replace(/\s+/g, ' ')
+    const wordCount = text.split(' ').filter(w => w.length > 0).length
+    expect(wordCount).toBeGreaterThan(600)
+  })
+
+  it('contains relevant keywords', async () => {
+    const res = await request(app).get('/blog/automating-og-images.html')
+    const html = res.text
+    expect(html).toContain('OG image')
+    expect(html).toContain('screenshot API')
+  })
+})
+
 describe('Blog Sitemap & Navigation', () => {
   it('sitemap contains blog URLs', () => {
     const sitemap = fs.readFileSync(path.join(publicDir, 'sitemap.xml'), 'utf-8')
     expect(sitemap).toContain('https://snapapi.eu/blog')
     expect(sitemap).toContain('https://snapapi.eu/blog/why-screenshot-api')
     expect(sitemap).toContain('https://snapapi.eu/blog/screenshot-api-performance')
+    expect(sitemap).toContain('https://snapapi.eu/blog/automating-og-images')
   })
 
   it('index.html has Blog link in nav or footer', () => {

src/routes/__tests__/status.test.ts

@@ -0,0 +1,36 @@
+import { describe, it, expect } from 'vitest'
+import request from 'supertest'
+import express from 'express'
+import path from 'path'
+import { fileURLToPath } from 'url'
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url))
+const publicDir = path.join(__dirname, '../../../public')
+
+function createApp() {
+  const app = express()
+  app.use(express.static(publicDir, { etag: true }))
+
+  // Mirror the status route from index.ts
+  app.get('/status', (_req, res) => {
+    res.sendFile(path.join(publicDir, 'status.html'))
+  })
+
+  return app
+}
+
+describe('Status Route', () => {
+  const app = createApp()
+
+  it('GET /status returns 200', async () => {
+    const res = await request(app).get('/status')
+    expect(res.status).toBe(200)
+    expect(res.headers['content-type']).toContain('text/html')
+  })
+
+  it('GET /status.html returns 200', async () => {
+    const res = await request(app).get('/status.html')
+    expect(res.status).toBe(200)
+    expect(res.headers['content-type']).toContain('text/html')
+  })
+})