---
phase: 01-setup-foundation
plan: 01
type: execute
wave: 1
depends_on: []
files_modified: [package.json, tsconfig.json, src/, tailwind.config.js, postcss.config.js, .prettierrc]
autonomous: true
must_haves:
  truths:
    - "Project is initialized with React, TypeScript, and Tailwind CSS"
    - "Core dependencies are installed and configured"
    - "Development server can be started successfully"
  artifacts:
    - path: "package.json"
      provides: "Project dependencies and scripts"
      contains: "react, react-dom, typescript"
    - path: "tsconfig.json"
      provides: "TypeScript compilation settings"
      contains: "jsx: react-jsx"
    - path: "src/"
      provides: "Source code root directory"
      min_lines: 5
    - path: "tailwind.config.js"
      provides: "Tailwind CSS configuration"
      contains: "content: [\"./src/**/*\"]"
  key_links:
    - from: "src/main.tsx"
      to: "src/App.tsx"
      via: "React root component"
      pattern: "import App from.*App"
    - from: "package.json"
      to: "node_modules"
      via: "npm install"
      pattern: "dependencies.*react"
---

# Setup project structure and core dependencies

## Objective
Initialize a React project with TypeScript and Tailwind CSS, along with core dependencies for a weekly todo list application.

## Purpose
Establish a solid foundation for development by setting up the project structure, installing necessary dependencies, and configuring the development environment.

## Output
A fully configured React TypeScript project with Tailwind CSS and core dependencies ready for component development.

## Context
This is the first phase of our 5-phase roadmap. We are setting up the technical foundation for building a weekly scheduler with calendar integration.

## Tasks

<task type="auto">
  <name>Initialize React project with TypeScript and Tailwind CSS</name>
  <files>package.json, tsconfig.json, src/</files>
  <action>
    1. Initialize a new React project with TypeScript using Vite
    2. Configure Tailwind CSS following official installation guide
    3. Set up the basic project structure with src/ directory
    4. Create main entry point files (main.tsx, App.tsx, index.css)  
    5. Configure TypeScript with appropriate compiler options for React
  </action>
  <verify>npm run dev starts the development server without errors</verify>
  <done>Development server starts successfully and renders a basic "Hello World" screen</done>
</task>

<task type="auto">
  <name>Install and configure core dependencies</name>
  <files>package.json, tailwind.config.js</files>
  <action>
    1. Install core dependencies: date-fns for date manipulation, react-dnd for drag-and-drop
    2. Configure Tailwind CSS with proper content paths
    3. Set up necessary TypeScript configurations for Tailwind
    4. Install type definitions for all new dependencies
    5. Configure PostCSS plugins for Tailwind
  </action>
  <verify>npm install completes without errors and all dependencies are listed in package.json</verify>
  <done>All dependencies are installed and imported correctly in main.tsx</done>
</task>
</tasks>

<verification>
- Development server starts successfully
- All configured dependencies are properly installed
- Tailwind CSS is functional in the project
- TypeScript compiles without errors
</verification>

<success_criteria>
- React app initializes with TypeScript support
- Tailwind CSS is properly configured and working
- date-fns and react-dnd libraries are installed and importable
- Project can be built with `npm run build`
- Development server starts with `npm run dev`
</success_criteria>

<output>
After completion, create `.planning/phases/01-setup-foundation/01-01-SUMMARY.md`
</output>