chore: update social unfurl description

[simplesagar]

Summary

• Updates the Open Graph og:description meta tag used for social link unfurls
• New description: "Securely connect your production data to AI and build apps. Powered by MCP."

Test plan

• Deploy preview and share link on Slack/social to verify unfurl displays new description

🤖 Generated with Claude Code

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Latest commit: 88e84b0

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Project	Deployment	Review	Updated (UTC)
gram	Ready	Preview, Comment	Jan 6, 2026 8:14pm
gram-docs-redirect	Ready	Preview, Comment	Jan 6, 2026 8:14pm