feat: v1 — persistent shell, model gateway, artifact improvements

[dancer]

summary

• persistent chat shell that never unmounts between chat switches
• active chat context with SWR-based message loading and optimistic updates
• model selector with dynamic AI Gateway model discovery and per-model provider routing
• slash commands: /new, /clear, /rename, /model, /theme, /delete, /purge
• edit document tool for targeted find-and-replace on artifacts
• code/sheet artifacts use streamText for cross-model compatibility
• artifact panel: auto-scroll, version browsing with prev/next, diff toggle, suggestion click-to-apply
• markdown fence stripping for code output
• optimistic chat delete with instant navigation
• manual edits update document in place, AI changes create new versions
• security: ownership checks on all tools, input validation with zod, filename sanitization, confirmation dialogs
• next.js 16.2 upgrade with react compiler, inline css, prefetch inlining, cached navigations
• squashed migrations into single 0000_initial.sql
• removed better-auth, dead code, comments, emojis
• ai sdk gateway import from ai package, removed @ai-sdk/gateway dependency
• themed toasts, minimal scrollbars, light mode sidebar, code icon for code artifacts
• rate limit: 10 messages per hour via entitlements
• updated prompts, tool descriptions, and error messages
• .env.example and tests updated for current model list

[vercel]

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Project	Deployment	Actions	Updated (UTC)
ai-chatbot	Ready	Preview, Comment	Mar 20, 2026 9:32am
chatbot	Ready	Preview, Comment	Mar 20, 2026 9:32am

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	next@​16.0.10 ⏵ 16.2.0		+24	+1
	@​ai-sdk/​react@​3.0.39 ⏵ 3.0.118			+1
	next-auth@​5.0.0-beta.25
	babel-plugin-react-compiler@​1.0.0
	ai@​6.0.37 ⏵ 6.0.116	-7

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[vercel-team]

📝 Changed routes:

/	/login
(view full size)	(view full size)

/register	/chat/[id]
(view full size)	(view full size)

Commit aedb476 (https://ai-chatbot-qidamgt5x.vercel.sh).

[vercel]

Additional Suggestion:

Guest auth redirect always lands on / instead of the originally requested page because the proxy passes a full URL that fails the guest route's relative-path validation.