Add prayer journal app with request + answer tracking

Todo-list style app where users can add prayers, record how God answered
them, filter between active/answered, and tag entries for organization.
Persists to localStorage. Clean warm serif aesthetic with dark mode support.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DReRqHxSYuVfCzTzQGD9hZ

public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow: