Adds a buildClaudePrompt() utility that formats the completed study project
(scripture, notes, Greek word research) into a structured prompt ready to
paste into Claude. A "Prepare for Claude" button in the header copies it to
the clipboard and shows a brief confirmation. Button is disabled until at
least one chunk exists.
https://claude.ai/code/session_01C4T3bYHR2svLq7JVcxKJ6Y
Sets up Vitest + React Testing Library with jsdom, exports utility functions
for unit testing, and adds 78 tests covering pure functions and component
integration flows (chapter loading, chunk management, navigation, Greek word
lookup).
https://claude.ai/code/session_01C4T3bYHR2svLq7JVcxKJ6Y