feat: blog companion for "MCP's New Standard" (post-6)

[vreshch]

What

Companion page for the Medium article published today: /blog/mcp-new-standard.

• src/content/blog/mcp-new-standard/article.md - ~330-word companion (opening receipts, 4-lesson list, quotable rule, close), mediumUrl frontmatter drives the "Full article at Medium" CTA
• public/blog/mcp-new-standard/images/cover.png - article cover (dark-galaxy, same asset as Medium)
• public/blog/mcp-new-standard/images/og.png - generated share card (scripts/generate-blog-og.py)

Medium: https://medium.com/@vreshch/mcps-new-standard-what-changed-and-why-it-was-needed-8ac7556183e7

Verified

• npm run verify green (type-check + lint + build + 23 tests) + format:check green
• Loaded production build in a browser: page renders with Medium CTA, cover, tags, blockquote, next-post nav (proof screenshots follow in comment)
• Note: date frontmatter kept UNQUOTED to match existing posts (quoted string broke date-sort test against YAML-Date posts)

After merge

Swap LinkedIn first-comment + IG bio links to https://vreshch.com/blog/mcp-new-standard

[github-actions]

🎉 PR Validation ✅ PASSED

Commit: 9dfd2c52c9dc9b9d1a4d9f0956b229703a1dad27
Branch: feature/blog-mcp-new-standard

Checks:

• ✅ Dependencies installed
• ✅ Linting passed
• ✅ Format check passed
• ✅ Build successful
• ✅ Docker build
• ✅ E2E tests

Visual Changes: 8 of 8 screenshots changed

📸 contacts desktop — 100% changed

📸 contacts mobile — 100% changed

📸 home desktop — 100% changed

📸 home mobile — 100% changed

📸 interests desktop — 100% changed

📸 interests mobile — 100% changed

📸 projects desktop — 100% changed

📸 projects mobile — 100% changed

Ready to merge! ✨

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🔗 View workflow run
⏰ Generated at: 2026-08-04T13:27:50.827Z

[vreshch]

Rendered proofs (production build, localhost):

Dark

Light