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[na-trium-144]

close #61

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	my-code	02c903c	Commit Preview URL Branch Preview URL	Oct 25 2025, 06:36 PM

[Copilot]

Pull Request Overview

This PR implements a login functionality using better-auth with anonymous authentication and OAuth providers (GitHub/Google), replacing the previous localStorage-based chat history with a PostgreSQL database managed by Prisma.

Key changes:

• Added Prisma schema with User, Session, Account, Chat, and Message models for database-backed authentication and chat storage
• Integrated better-auth with anonymous login and OAuth providers
• Migrated chat history from localStorage to database with automatic chat migration when anonymous users link accounts

Reviewed Changes

Copilot reviewed 18 out of 21 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
prisma/schema.prisma	Defines database schema for authentication (User, Session, Account, Verification) and chat functionality (Chat, Message)
prisma.config.ts	Configures Prisma with PostgreSQL datasource and migration settings
package.json	Adds prisma, @prisma/client, better-auth, and dotenv dependencies; updates scripts to run prisma generate
app/sidebar.tsx	Adds AccountMenu component to sidebar header
app/navbar.tsx	Adds AccountMenu component to navbar
app/lib/prisma.ts	Exports configured PrismaClient instance
app/lib/chatHistory.ts	Implements server-side chat CRUD operations with authentication checks and user migration
app/lib/auth.ts	Configures better-auth with Prisma adapter, anonymous plugin, and OAuth providers
app/lib/auth-client.ts	Creates client-side auth instance with anonymous plugin
app/layout.tsx	Adds AutoAnonymousLogin component for automatic anonymous authentication
app/api/auth/[...all]/route.ts	Creates Next.js API route handler for better-auth endpoints
app/actions/chatActions.ts	Updates askAI to save chats to database and return ChatWithMessages type
app/accountMenu.tsx	Implements UI components for login/logout and account menu with OAuth integration
app/[docs_id]/pageContent.tsx	Updates to use database-backed chat histories with new data structure
app/[docs_id]/page.tsx	Fetches initial chat histories from database via getChat
app/[docs_id]/chatHistory.tsx	Refactors chat history context to use database-backed ChatWithMessages type
app/[docs_id]/chatForm.tsx	Updates to work with new chat data structure and server action response
README.md	Documents setup instructions for Prisma development environment and production OAuth configuration

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[Copilot]

Converting the error to a string with String(error) may produce unhelpful messages like '[object Object]'. Extract the error message properly: error instanceof Error ? error.message : 'An unexpected error occurred'.

Suggested change

	error: String(error),
	error: error instanceof Error ? error.message : 'An unexpected error occurred',

[Copilot]

The chatId variable is no longer defined after removing the assignment. If the TODO is still relevant, it should reference result.chat.chatId instead.

Suggested change

	// TODO: chatIdが指す対象の回答にフォーカス
	// TODO: result.chat.chatIdが指す対象の回答にフォーカス

[na-trium-144]

プレビューだとなんか動作しないが、ログも出なくて何が起きているかわからんので、一旦マージしちゃう