Fix duplicate analysis route handler

[DealPatrol]

Summary

• Remove the duplicated imports and duplicate GET handler in app/api/analyses/[id]/route.ts.
• Add shared CodeVault branding, theme switching, and a more polished landing page trust section.
• Add a Stripe Checkout billing flow with pricing UI, server-side subscription session creation, and success/cancel pages.
• Harden analysis blueprint generation by using Anthropic directly, validating Claude model config, and accepting common Claude JSON response variants.
• Keep failed SSE analysis runs visibly failed in the UI instead of flipping them to complete.

Testing

• pnpm install --frozen-lockfile
• pnpm lint
• pnpm build
• node --input-type=module -e "...parseAnalysisBlueprintOutput harness..."
• pnpm dev --hostname 0.0.0.0
• curl -s -i -X POST http://127.0.0.1:3000/api/stripe/checkout -H 'Content-Type: application/json' -d '{"planId":"codevault-pro"}'
• curl -s -i -X POST http://127.0.0.1:3000/api/stripe/checkout -H 'Content-Type: application/json' -d '{"planId":"bad-plan"}'
• Browser walkthrough confirmed the Stripe pricing UI renders and shows the expected missing-key state locally.

Walkthrough

codevault_stripe_billing_ui_demo.mp4

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Project	Deployment	Actions	Updated (UTC)
repo-app-architect	Ready	Preview, Comment	Apr 27, 2026 7:14pm
v0-repo-app-architect	Ready	Preview, Comment, Open in v0	Apr 27, 2026 7:14pm