Snapshot: MLS sync fixes, image refresh, plugin/theme updates

MLS plugin fixes from this session:
- Fix silent insert failures: location column NOT NULL was rejecting wpdb->insert calls,
  causing ~18k new properties since Dec 2025 to be lost. Inserts now build raw SQL
  with ST_PointFromText so the spatial column is populated atomically.
- Auto-refresh expired media URLs in MLS_Media_Handler::fetch_and_cache(), guarded by
  a property-level GET_LOCK so concurrent fetches share one API refresh.
- Normalize WP_Error to null in mls_get_property_image() so callers can rely on the
  documented string|null contract.
- Support comma-separated property_type filters in MLS_Query and MLS_Cluster so the
  homepage "View All Commercial" link (?property_type=Commercial+Sale,Land,Farm)
  actually filters correctly.
- Incremental sync now looks back 10 minutes past the latest modification timestamp
  as a safety margin against missed records.
- Smart sync exits silently (info-level, not warning) when a full sync is in progress.

Operational:
- New cron: weekly full sync Sundays at 3 AM (/usr/local/bin/mls-full-sync).
- New cron: hourly 2GB cap on mls-thumbnails/ and cache/transformed-images/
  (/usr/local/bin/mls-image-cache-cap).
- Logrotate config for wp-content/debug.log (2-day retention, daily rotation,
  delaycompress).

Repo policy:
- CLAUDE.md updated with explicit "commit everything except build artifacts" policy.
- .gitignore: untrack runtime image caches and debug.log rotations.

Other modifications in this snapshot are pre-existing in-flight theme/plugin/db_content_updates work.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

wp-content/plugins/wpforms-lite/assets/images/builder/image-upload-placeholder.svg

@@ -0,0 +1,5 @@
+<svg width="65" height="50" viewBox="0 0 65 50" fill="none" xmlns="http://www.w3.org/2000/svg">
+<rect x="0.5" y="0.384644" width="64" height="49.2308" rx="6.15385" fill="white"/>
+<path d="M56.4736 41.4103H8.47363V35.2365L17.4124 26.0375C17.5517 25.8936 17.7173 25.7794 17.8997 25.7015C18.082 25.6236 18.2775 25.5835 18.4749 25.5835C18.6723 25.5835 18.8678 25.6236 19.0501 25.7015C19.2324 25.7794 19.398 25.8936 19.5374 26.0375L26.4736 33.1786L43.4124 15.7478C43.5517 15.6039 43.7173 15.4897 43.8997 15.4118C44.082 15.3339 44.2775 15.2938 44.4749 15.2938C44.6723 15.2938 44.8678 15.3339 45.0501 15.4118C45.2324 15.4897 45.398 15.6039 45.5374 15.7478L56.4736 27.0047V41.4103Z" fill="#CCCCCC"/>
+<ellipse cx="14.4995" cy="14.7104" rx="6.9375" ry="7.13846" fill="#DDDDDD"/>
+</svg>