refactor(quotes): grouped sections, drop italics, InferenceX brand cleanup

[samharshe]

Refactors /quotes to mirror the ClusterMAX quotes page layout.

Changes

• Grouped sections. Quotes are now split into 6 cards with section headers, in this order:
  • AI Industry Leaders
  • AI Companies and Startups
  • Infrastructure Providers
  • Inference Engines and Frameworks
  • Researchers and Academia
  • Community and Content Creators
• Jensen Huang moved to the top of the first section.
• InferenceMAX → InferenceX in all quote prose.
• Superscripted ™ removed from quote text (and from the intro card copy).
• Italics dropped on quote bodies — switched from text-muted-foreground italic to plain text-foreground for readability, matching ClusterMAX.
• <em> support in author title field so Stas Bekman's book title renders italicized (only place it's used).

Data layer

quotes-data.ts adds a group field and exports QuoteGroup + QUOTE_GROUPS. Existing QUOTES, CAROUSEL_ORGS, and CAROUSEL_LABELS exports are preserved, so intro-section.tsx and faq-data.ts are unaffected.

Validation

• pnpm typecheck ✅
• pnpm lint ✅
• pnpm fmt ✅
• pnpm test:unit ✅ (1944/1944)
• pnpm build compiles successfully (build halts later on an unrelated DATABASE_READONLY_URL env requirement)

---

Note

Low Risk
Marketing/content and presentational React on the quotes page only; public API exports used elsewhere are unchanged.

Overview
Refactors the /quotes page to match a grouped ClusterMAX-style layout: an intro card with org logos, then six section cards driven by new QuoteGroup / QUOTE_GROUPS and a group field on each quote (Jensen Huang is first in AI Industry Leaders).

Branding and copy: quote text and the intro headline drop InferenceMAX, superscript ™, and use InferenceX instead. Quote bodies no longer use muted italics (text-foreground only).

UI polish: QuoteCard takes the full Quote type; author titles can include <em>...</em> via a small renderEm helper (e.g. book title). Optional logoIsPhoto is added on the type for future logo styling.

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