[P0-1] Scaffold Next.js App

[realproject7]

Context

Initialize the web app with the project's core tech stack. PlotLink is a Next.js App Router project with TypeScript and Tailwind CSS. The design direction (§6.1) is mobile-first with a terminal/monospace aesthetic — dark background, light text, outline-based UI, no fills, no shadows.

Sub-tickets

• P0-1a: Initialize Next.js project with App Router, TypeScript, Tailwind CSS, ESLint. Configure path aliases (@/ → src/).
• P0-1b: Set up terminal design system — monospace font, dark color palette, CSS variables for the design tokens (background, text, accent, border). Create a minimal global stylesheet following §6.1.
• P0-1c: Create .env.example listing all environment variables the project will need. Reference the proposal §4.1 (Filebase, Supabase, RPC) and §12 (External Dependencies) for the full list. Leave values empty — just document what each var is for.

Proposal Reference

§6.1 (Design Direction — Terminal Aesthetic)

[realproject7]

T3 Note: Use /frontend-design skill in Claude Code when building UI components for this ticket. The design direction is terminal aesthetic — monospace, dark, outline-based, no fills, no shadows (§6.1).