♻️ feat: implement session management for PTY sessions in the server

- Add SessionManager class to handle PTY sessions with WebSocket connections.
- Implement methods for creating, retrieving, and destroying sessions.
- Handle PTY output and WebSocket messages for terminal interaction.
- Ensure graceful session destruction and cleanup.

feat: initialize web application with Next.js and Tailwind CSS

- Create initial Next.js application structure with TypeScript support.
- Set up Tailwind CSS for styling with custom theme configurations.
- Add ESLint configuration for code quality and consistency.

feat: implement chat API and UI components

- Create chat API route to handle chat requests and responses.
- Develop chat layout with sidebar, header, chat window, and input components.
- Integrate Zustand for state management of conversations and messages.
- Add utility functions for formatting dates and managing class names.

chore: add environment variables and configuration files

- Create .env.example for environment variable setup.
- Add configuration files for PostCSS, Tailwind CSS, and TypeScript.
- Set up package.json with necessary dependencies and scripts for development.

docker/entrypoint.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+set -e
+
+# ── Validate required env vars ────────────────────────────────
+if [ -z "$ANTHROPIC_API_KEY" ]; then
+  echo "ERROR: ANTHROPIC_API_KEY is not set." >&2
+  echo "" >&2
+  echo "  docker run -p 3000:3000 -e ANTHROPIC_API_KEY=sk-ant-... claude-web" >&2
+  echo "" >&2
+  echo "  Or via docker-compose with a .env file:" >&2
+  echo "    ANTHROPIC_API_KEY=sk-ant-... docker-compose up" >&2
+  exit 1
+fi
+
+# The API key is forwarded to child PTY processes via process.env,
+# so the claude CLI will pick it up automatically — no config file needed.
+
+echo "Claude Web Terminal starting on port ${PORT:-3000}..."
+if [ -n "$AUTH_TOKEN" ]; then
+  echo "  Auth token protection: enabled"
+fi
+if [ -n "$ALLOWED_ORIGINS" ]; then
+  echo "  Allowed origins: $ALLOWED_ORIGINS"
+fi
+echo "  Max sessions: ${MAX_SESSIONS:-5}"
+
+# Hand off to the PTY WebSocket server
+exec bun /app/src/server/web/pty-server.ts