Nav restructure: drop Providers, split Enterprise/Startup, book-demo CTA, 3×2 footer

[SPIKESPIGEL404]

What & why

A website navigation restructure across the header, footer, and product pages.

1. Remove the Providers page

• Deletes /providers (index) and /providers/[slug] (detail pages) plus both marketing components.
• Removes provider entries from the sitemap, the footer link, and the "Providers" CTA on the Models page (with now-unused imports).
• Keeps lib/providers-server.ts — still used by the docs provider table.

2. Enterprise + Startup (both under Product)

• Enterprise reframed around FinOps token-cost governance: hero → a cited "tokenmaxxing" failure band (Anthropic 15×, Menlo $8.4B, MIT ~95%, FinOps Foundation $37B, each linking its source) → org-wide budgets / showback-chargeback / quotas / anomaly detection / unit economics → the outcome-based guarantee (kept as the accountability mechanism) → how it works → compare → FAQ.
• Startup (new): per-user agentic-loop cost optimization for margin, a per-user unit-economics receipt, and an OSS-model credits program (glm-5.2, kimi-k2.7-code, minimax-m3, deepseek-v4-pro, stepfun-3.7-flash, mimo-v2.5-pro), framed as BitRouter's own bundled offer.
• Both reuse the existing mono/.br-mono design system and end in the founder-call CTA.

Note on accuracy: per-model context/price/benchmark specs on the Startup page were intentionally omitted — the newer model versions couldn't be verified to reliable sources, so the cards show only model name, maker, and open-weight status. Easy to enrich once verified numbers are available.

3. Header

• Adds an always-shown secondary "book demo" CTA (left of "get api key") that opens the existing founder-call Cal.com embed, on desktop and in the mobile menu.
• Surfaces GitHub stars in the mobile menu (they were only in the desktop bar before).

4. Footer → 3×2 grid

• Integrations moved under Developers (Quickstart dropped); Status moved to Resources; bottom-bar Integrations link removed.
• New Compare column: vs OpenRouter / vs LiteLLM / vs Portkey / All comparisons (real pages).
• New Community column: the 5 socials rendered as labeled icon+name rows (the old tiny top-right cluster is removed).

Testing

• vitest run — 65/65 pass (footer-nav model updated with new columns/tests).
• tsc --noEmit — no new type errors in changed files.
• Verified in the browser: Providers removal doesn't break /models; Enterprise & Startup render; book-demo opens the Cal modal; header stars present at 820/1200/1440px and in the mobile menu; footer renders as a 3×2 grid.

Follow-ups

• Populate Startup OSS-credit card specs once verified.
• A future Templates page under Product (workflow/use-case showcase) will slot into the footer.

🤖 Generated with Claude Code