Audit + fix mobile homepage product visual quality (Jessica report)

Jessica reported in #website (1780937061.336739) that 'product assets are horrible quality' on mobile homepage. Audit identified three concrete issues: 1. Hero product image (`scene-4-static.webp/jpg` 1600x855) is crushed to ~366x184 on mobile — desktop screenshot has too much detail to read at that size. Soft/illegible. 2. Customer logo gallery (`apps/www/app/components/galleries/customer-logo-gallery.tsx`) uses SVG/PNG logos from Contentful at extreme natural sizes (some 5611x1955 SVG). next/image is bypassed for SVGs by default — the giant intrinsic dimensions cause perception issues. Multiple logos load via raw `images.ctfassets.net` URLs without optimization. 3. Capability cards (`/figma-exact/capability-*.svg`) are sized appropriately on mobile (310x328 rendered) but the scheduling/dispatch card looks cramped per visual audit. Deliverables (one PR per issue, fan-out sub-agents): - Sub-agent A: Add mobile-optimized hero treatment — either a mobile-specific simplified static asset OR show only the focal panel (Tesla Powerwall detail). Branch website/mobile-hero-quality. Reference `apps/www/app/components/showcases/explorer-showcase/static-preview.tsx` and `apps/www/app/components/blocks/intro-block.tsx`. - Sub-agent B: Customer logo gallery — ensure logos load through `next/image` with proper `sizes`, and downsample any oversized Contentful raster logos. SVGs are inherently sharp but the intrinsic width attribute (5611) should still be capped or width/height should be normalized for cleaner DOM layout. Branch website/logo-gallery-mobile. Verification: re-run Lighthouse mobile audit, compare oversize ratios from inspect script in /home/agent/local-tools/lighthouse/.