98 lines
6.4 KiB
Markdown
98 lines
6.4 KiB
Markdown
# Technology Stack
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**Analysis Date:** 2026-04-18
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## Languages
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**Primary:**
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- TypeScript 5.x - Application code, API routes, hooks, Prisma access, and most tooling live in `src/**/*.ts`, `src/**/*.tsx`, `prisma/seed.ts`, `tailwind.config.ts`, and `vitest.config.ts`; the compiler is declared in `package.json`.
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**Secondary:**
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- JavaScript - Next.js and PostCSS config live in `next.config.js` and `postcss.config.mjs`.
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- CSS - Global styling and external font/icon imports live in `src/app/globals.css`.
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- JSON - Locale message catalogs live in `src/messages/en.json` and `src/messages/zh.json`; repo config also uses `.eslintrc.json` and `.prettierrc.json`.
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- Prisma schema DSL - Database schema and datasource definitions live in `prisma/schema.prisma`.
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## Runtime
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**Environment:**
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- Node.js - Repo runtime is Node-based because scripts use `next`, `vitest`, `prisma`, and `ts-node` from `package.json`.
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- Version pinning: Not detected in repo. No `.nvmrc`, `.node-version`, or `.tool-versions` file is present.
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- Local tool version observed in this workspace: Node.js `v22.21.1`.
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**Package Manager:**
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- `pnpm` - Project commands, lockfile, and Vercel install/build configuration use `pnpm` in `package.json`, `pnpm-lock.yaml`, and `vercel.json`.
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- Local tool version observed in this workspace: `pnpm 10.27.0`.
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- Lockfile: present in `pnpm-lock.yaml`.
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## Frameworks
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**Core:**
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- Next.js `15.1.11` - App Router web framework for pages, layouts, metadata, and route handlers in `src/app/**/*`; version declared in `package.json`.
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- React `19.0.0` and `react-dom` `19.0.0` - UI runtime for components in `src/components/**/*` and route segments in `src/app/**/*`; versions declared in `package.json`.
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- `next-intl` `4.0.2` - Locale routing and message loading via `next.config.js`, `src/middleware.ts`, `src/i18n/request.ts`, and `src/app/[locale]/layout.tsx`.
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- Prisma `6.1.0` / `@prisma/client` `6.1.0` - ORM and generated client used in `src/lib/prisma.ts`, `src/hooks/useProjects.ts`, `src/app/api/**/*`, `prisma/schema.prisma`, and `prisma/seed.ts`.
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- Zod `3.24.1` - Request and payload validation in `src/lib/validations.ts` and multiple route handlers under `src/app/api/**/*`.
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**Testing:**
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- Vitest `2.1.8` - Unit-style test runner configured in `vitest.config.ts` and used by files such as `src/lib/auth.test.ts` and `src/app/api/tags/route.test.ts`.
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**Build/Dev:**
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- Tailwind CSS `3.4.17` - Utility-first styling configured in `tailwind.config.ts` and consumed by `src/app/globals.css` and component classes across `src/components/**/*`.
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- PostCSS `8.x` with `autoprefixer` `10.4.20` - CSS processing configured in `postcss.config.mjs`.
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- ESLint `9.x` with `eslint-config-next` `15.1.11` and `eslint-config-prettier` `9.1.0` - Linting configured in `.eslintrc.json`.
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- Prettier `3.4.2` - Formatting configured in `.prettierrc.json`.
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- `ts-node` `10.9.2` - TypeScript execution for seeding via the `prisma.seed` command in `package.json`.
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- `tailwindcss-animate` `1.0.7` - Tailwind plugin loaded in `tailwind.config.ts`.
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## Key Dependencies
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**Critical:**
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- `next` `15.1.11` - Main application framework; routes, layouts, metadata, and route handlers all depend on files under `src/app/**/*`.
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- `react` `19.0.0` / `react-dom` `19.0.0` - Required by all React components in `src/components/**/*` and page/layout files in `src/app/**/*`.
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- `@prisma/client` `6.1.0` - Database access layer instantiated in `src/lib/prisma.ts` and used heavily in `src/hooks/useProjects.ts`, `src/app/api/projects/route.ts`, `src/app/api/signals/route.ts`, and related files.
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- `prisma` `6.1.0` - Schema and migration tool backing `prisma/schema.prisma` and `prisma/migrations/*/migration.sql`.
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- `next-intl` `4.0.2` - Locale middleware and message loading depend on `src/middleware.ts`, `src/i18n/request.ts`, and `src/messages/*.json`.
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- `zod` `3.24.1` - Input validation for search, tag maintenance, and webhook payloads in `src/app/api/search/ai/route.ts`, `src/app/api/tags/maintenance/route.ts`, and `src/app/api/webhook/signals/route.ts`.
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**Infrastructure:**
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- `@vercel/analytics` `1.6.1` and `@vercel/speed-insights` `1.3.1` - Vercel client telemetry mounted in `src/app/VercelMetrics.tsx` and conditionally included in `src/app/layout.tsx`.
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- `react-markdown` `10.1.0`, `remark-gfm` `4.0.1`, and `rehype-sanitize` `6.0.0` - Markdown rendering stack used by `src/components/project/MarkdownContent.tsx`.
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- `lucide-react` `0.468.0` - Icon set optimized through `experimental.optimizePackageImports` in `next.config.js`.
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## Configuration
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**Environment:**
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- Template env vars are documented in `.env.example`.
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- Real runtime env files exist as `.env` and `.env.local`; contents were not read.
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- Code-level env usage is limited to:
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- `DATABASE_URL` in `prisma/schema.prisma`
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- `WEBHOOK_API_KEY` in `src/lib/auth.ts`
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- `N8N_AI_SEARCH_WEBHOOK` in `src/app/api/search/ai/route.ts`
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- `NEXT_PUBLIC_SITE_URL` in `src/app/robots.ts` and `src/app/sitemap.ts`
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- `VERCEL_ENV` in `src/app/layout.tsx`
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- `.env.example` also declares `NEXT_INTL_DEFAULT_LOCALE` and `NEXT_INTL_SUPPORTED_LOCALES`, but locale handling in current code is hard-coded in `src/i18n/request.ts` and `src/middleware.ts`.
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**Build:**
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- `next.config.js` wires `next-intl`, remote image hosts, and `optimizePackageImports`.
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- `tsconfig.json` enables strict TypeScript, `noUncheckedIndexedAccess`, `noImplicitReturns`, and the `@/*` path alias.
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- `tailwind.config.ts` and `postcss.config.mjs` define the styling pipeline.
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- `vercel.json` defines deployment-time build/install commands, Next.js framework selection, region `hkg1`, and disables Git-triggered deployments.
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- `package.json` scripts expose `dev`, `build`, `start`, `lint`, `test`, and Prisma seeding.
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## Platform Requirements
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**Development:**
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- Node.js and `pnpm` are required to run `package.json` scripts.
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- PostgreSQL is required because `prisma/schema.prisma` uses the `postgresql` provider and `DATABASE_URL`.
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- Prisma client generation is required before production builds; `vercel.json` explicitly runs `pnpm prisma generate && pnpm build`.
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**Production:**
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- Vercel is the explicit deployment target indicated by `vercel.json` and the Vercel-specific telemetry components in `src/app/VercelMetrics.tsx`.
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- The app expects Vercel environment semantics for telemetry gating via `process.env.VERCEL_ENV` in `src/app/layout.tsx`.
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- Server runtime storage is PostgreSQL via Prisma; no alternate production datastore is configured in repo.
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---
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*Stack analysis: 2026-04-18*
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