Add Storyforge v2 carousel engine with quality filters and feedback loop

Fix generation failures: lazy-init Anthropic client, surface real errors

Eliminate all remaining non-accent colors from light mode UI

Single accent color in light mode: #E8590C everywhere

Change light mode accent from cyan-blue to warm orange (#E8590C)

Fix 3 critical issues: private themes guard, DM Sans/Fraunces redesign, founder channels

Redesign dashboard layout: ElevenLabs-style UI with light/dark mode toggle

Add long-form video mode, Daily Grace Prayer theme seed, and 30-topic bank

Fix Vercel build errors: lazy-init Stripe/Resend, wrap useSearchParams in Suspense

Remove deprecated Pages Router config export from Stripe webhook route

Initial commit — StoryForge Next.js app