Update Sidekick Dev URL in config.py documentation

Refactor DeepWiki client session handling and request headers

Refactor error event type normalization in migrations

Enhance DeepWiki client initialization and error messaging

Update README.md

Update README.md

Add error handling for upstream unavailability in DeepWiki client

Enhance Postgres enum migration and error handling in DeepWiki client

Add Cloudflare error handling in DeepWiki client

Update deployment and setup documentation to reflect repository name change

Add threading support to serialize access to DeepWiki client

Update README.md

Update button layout in Index component for improved responsiveness

Add email signup functionality and set database timezone to Pacific Time

Update repository references and enhance local testing instructions