security: add real security headers middleware#708
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- Create security-headers.ts middleware replacing pass-through stub - Set X-Content-Type-Options: nosniff (prevents MIME sniffing) - Set X-Frame-Options: SAMEORIGIN (blocks external framing) - Set Referrer-Policy: strict-origin-when-cross-origin - Set Permissions-Policy: camera=(), microphone=(), geolocation=() - Set HSTS (1 year) in non-development environments - Apply middleware in app.ts security slot - Replace stub export in middleware/index.ts Fixes VULN-005
lane711
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Mar 30, 2026
Security hardening release: - SQL injection fix via sort order validation (#713) - Reflected XSS fix on auth pages (#714) - Stored XSS fix in content preview (#715) - Security headers middleware (#708) - Auth endpoint rate limiting (#707) - CORS restrictions (#706) - PBKDF2 password hashing (#705) - JWT secret to environment variable (#704) Bug fixes: - Radio field support (#723) - Confirm dialogs for repeater/block deletes (#722) - Rich text editor field types (#721) - user_profiles migration in core (#718) - itemTitle for structured arrays (#725) 🤖 Generated with [Claude Code](https://claude.com/claude-code)
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Summary
Cherry-picked from #663 by @mmcintosh
Adds proper security headers middleware (X-Content-Type-Options, X-Frame-Options, HSTS, etc.) to all responses.
Attribution
Closes #663
🤖 Generated with Claude Code