Security:
- Fix XSS in HTMX responses by replacing f-string HTML with Jinja partials
- Fix TLS verify_cert not being applied (add Tls config to ldap3 Server)
- Fix password_hash NOT NULL conflict for LDAP-only admin accounts
- Fix should_create_ldap_user defaulting to True for existing invitations
Correctness:
- Fix DN reconstruction fragility using escape_rdn for special characters
- Fix connection leaks with try/finally in all LDAPClient methods
- Fix sync interval logic (check FLASK_ENV not WIZARR_ENABLE_SCHEDULER)
- Only register LDAP sync job when LDAP is actually configured
- Make find_user_dn and service_connection public API methods
Cleanup:
- Squash 5 incremental LDAP migrations into single 20251226_add_ldap_support
- Remove duplicate imports/queries in auth routes
- Replace f-string logging with %s formatting
- Extract inline HTML to Jinja template partials
