Add Happy Hour Bot chat feature for Belmont Shore, Naples, and 2nd & PCH areas

[devin-ai-integration]

Add Happy Hour Bot chat feature for Belmont Shore, Naples, and 2nd & PCH areas

Summary

This PR adds a chatbot interface for querying happy hour information at bars and restaurants in the Belmont Shore, Naples, and 2nd & PCH areas of Long Beach. The chat feature becomes the default landing page, replacing the original Conduit article feed.

Key changes:

• New chat component with a modern chat UI (message bubbles, typing indicator, suggested questions)
• Chat service that communicates with a Spring Boot backend API
• Modified API interceptor to allow direct localhost requests (bypasses the realworld.show API transformation)
• Rebranded header/footer from "Conduit" to "Happy Hour Bot"
• Simplified navigation by removing authentication-related UI elements

Demo

View original video (rec-60853757c1114d5da7a0c84c27bf69e7-edited.mp4)

Review & Testing Checklist for Human

• CRITICAL: Hardcoded API URL - chat.service.ts has http://localhost:8080 hardcoded. This needs environment-based configuration before any production deployment
• API interceptor change - Verify the modification to skip URL transformation for full URLs doesn't break other parts of the app that might use absolute URLs
• Removed authentication UI - The header no longer shows sign in/sign up/settings/profile links. Confirm this is acceptable for the use case
• innerHTML usage - The formatMessageContent() method uses innerHTML. While it only does simple transformations, verify no XSS risk from backend responses
• End-to-end test - Run the backend (Spring Boot on port 8080) and test the chat functionality with various queries like "What places have happy hours right now?" and "Do any bars have happy hour on Tuesdays?"

Notes

This frontend requires the companion Spring Boot backend PR to be running on localhost:8080 for the chat functionality to work. Without the backend, users will see a connection error message.

Link to Devin run: https://ai-la-event-1-14-25.devinenterprise.com/sessions/6a3e8c1bcf4348fe817772c87c92947a
Requested by: alexjansonmcbride@gmail.com

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