chore: upgrade Prisma to 7.8.0

[LIlGG]

What type of PR is this?

/kind chore

What this PR does / why we need it:

升级 Prisma 及相关依赖至 7.8.0，以修复在 Node.js 24 环境下 better-sqlite3 原生模块编译失败的问题。

主要变更：

• 升级 prisma 至 7.8.0
• 升级 @prisma/client 至 7.8.0
• 升级 @prisma/adapter-better-sqlite3 至 7.8.0
• 迁移 datasource url 从 schema.prisma 到 prisma.config.ts（Prisma 7 破坏性变更）
• 替换已移除的 @prisma/client/runtime/library 导入（JsonArray、JsonObject、JsonValue）
• 修复 PrismaBetterSQLite3 → PrismaBetterSqlite3 的命名变更

How to test it?

1. 确保 Node.js 版本 >= 20
2. 运行 pnpm install 安装依赖
3. 运行 pnpm setup 执行数据库迁移并生成 Prisma Client
4. 运行 pnpm dev 启动开发服务器，确认无 better-sqlite3 加载错误
5. 运行 pnpm typecheck 确认类型检查通过

Which issue(s) this PR fixes:

Fixes Node.js 24 环境下 better-sqlite3 模块版本不兼容导致的启动失败。

Does this PR introduce a user-facing change?

升级 Prisma 至 7.8.0，修复 Node.js 24 兼容性问题

[f2c-ci-robot]

@LIlGG: The label(s) kind/chore cannot be applied, because the repository doesn't have them.

Details

In response to this:

What type of PR is this?

/kind chore

What this PR does / why we need it:

升级 Prisma 及相关依赖至 7.8.0，以修复在 Node.js 24 环境下 better-sqlite3 原生模块编译失败的问题。

主要变更：

• 升级 prisma 至 7.8.0
• 升级 @prisma/client 至 7.8.0
• 升级 @prisma/adapter-better-sqlite3 至 7.8.0
• 迁移 datasource url 从 schema.prisma 到 prisma.config.ts（Prisma 7 破坏性变更）
• 替换已移除的 @prisma/client/runtime/library 导入（JsonArray、JsonObject、JsonValue）
• 修复 PrismaBetterSQLite3 → PrismaBetterSqlite3 的命名变更

How to test it?

1. 确保 Node.js 版本 >= 20
2. 运行 pnpm install 安装依赖
3. 运行 pnpm setup 执行数据库迁移并生成 Prisma Client
4. 运行 pnpm dev 启动开发服务器，确认无 better-sqlite3 加载错误
5. 运行 pnpm typecheck 确认类型检查通过

Which issue(s) this PR fixes:

Fixes Node.js 24 环境下 better-sqlite3 模块版本不兼容导致的启动失败。

Does this PR introduce a user-facing change?

升级 Prisma 至 7.8.0，修复 Node.js 24 兼容性问题

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