Resolve unresolved merge conflict markers left in main

The merge of claude/nifty-bhaskara-fb3ec2 left three-way conflict
markers committed straight into index.html, _headers, and
.claude/launch.json instead of being resolved. Two branches had
independently fixed the same duplicate-CSP bug; keep the more
thorough fix (single CSP source of truth in _headers, no meta tag
in index.html, local photo path) and drop the now-unneeded
'unsafe-inline'/ki5bhv.com allowances.

_headers

@@ -1,13 +1,5 @@
 /*
-<<<<<<< HEAD
-<<<<<<< HEAD
   Content-Security-Policy: default-src 'self'; script-src 'self' https://static.cloudflareinsights.com; style-src 'self' https://fonts.googleapis.com 'unsafe-inline'; font-src 'self' https://fonts.gstatic.com; img-src 'self' data:; connect-src 'self' https://cloudflareinsights.com; object-src 'none'; base-uri 'none'; frame-ancestors 'none'; form-action 'self'; upgrade-insecure-requests
-=======
-  Content-Security-Policy: default-src 'self'; script-src 'self' https://static.cloudflareinsights.com; style-src 'self' https://fonts.googleapis.com 'unsafe-inline'; font-src 'self' https://fonts.gstatic.com; img-src 'self' https://ki5bhv.com data:; connect-src 'self' https://cloudflareinsights.com; object-src 'none'; base-uri 'none'; frame-ancestors 'none'; form-action 'self'; upgrade-insecure-requests
->>>>>>> c7a10ae71906680d14e62b25c702ac21e5067a7f
-=======
-  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://static.cloudflareinsights.com; style-src 'self' https://fonts.googleapis.com 'unsafe-inline'; font-src 'self' https://fonts.gstatic.com; img-src 'self' https://ki5bhv.com data:; connect-src 'self' https://cloudflareinsights.com; object-src 'none'; base-uri 'none'; frame-ancestors 'none'; form-action 'self'; upgrade-insecure-requests
->>>>>>> 6cea0312d23f660964b44ad3b2a6f18619d0b10b
   X-Content-Type-Options: nosniff
   X-Frame-Options: DENY
   Referrer-Policy: strict-origin-when-cross-origin