improvement(branding): dark og image matching landing surface

[waleedlatif1]

Summary

• Swaps the OG asset from a white-background wordmark to a dark variant on #1c1c1c — the canonical --landing-bg surface color (apps/sim/app/_styles/globals.css:253).
• Uses apps/sim/public/logo/wordmark.svg (white "sim" + green icon) — the same wordmark variant rendered in the sidebar in dark mode and in the docs.sim.ai OG cards.
• Asset only — the metadata path (/logo/426-240/reverse/small.png) is unchanged, so the existing OG/Twitter wiring picks it up automatically.

Why

• Dark cards pop in dark-mode chat clients (Slack, iMessage, Discord), where a pure-white card was creating a jarring blast of brightness in feeds.
• Brings the marketing card aesthetic in line with the docs cards — same wordmark, same surface color — so sim.ai and docs.sim.ai feel like the same product.
• Color matches what users already see on the landing page (bg-[#1C1C1C] in (landing)/partners/page.tsx, etc.).

Test plan

• Pull and run locally; confirm /logo/426-240/reverse/small.png renders as the dark wordmark
• Confirm view-source: of / still points og:image and twitter:image at /logo/426-240/reverse/small.png
• After deploy to staging: re-scrape via LinkedIn Post Inspector and Facebook Sharing Debugger to flush platform caches
• After deploy: post https://www.sim.ai/?v=dark in Slack to bust the per-URL cache and verify the new card renders

🤖 Generated with Claude Code

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Skipped		May 22, 2026 6:38am

[cursor]

PR Summary

Low Risk
Low risk: change appears limited to swapping a static OG/branding image asset, with no code or runtime logic changes.

Overview
Updates the Open Graph/branding image asset to use a dark-background wordmark variant while keeping the existing og:image URL/path wiring unchanged.

^{Reviewed by Cursor Bugbot for commit 82cc826. Configure here.}