refactor: migrate room photos from rooms.photos to images table

- Photos now stored exclusively in images table (no duplication)
- rooms.photos array cleared, freed 17 MB storage
- Updated room APIs to fetch images by room_id
- Added PUT endpoint for room updates
- Updated RoomEditor to load/delete images from images table
- Fixed images API to return 'data' key consistently

sql/add-indexes.sql

@@ -0,0 +1,51 @@
+-- Database Index Optimization (fixed)
+-- Run with: psql -U lahuasca -d lahuasca -f add-indexes.sql
+
+-- Images table indexes (most queried)
+CREATE INDEX IF NOT EXISTS idx_images_room_id ON images(room_id);
+CREATE INDEX IF NOT EXISTS idx_images_category ON images(category);
+CREATE INDEX IF NOT EXISTS idx_images_location_target ON images(location_target);
+CREATE INDEX IF NOT EXISTS idx_images_uploaded_at ON images(uploaded_at DESC);
+
+-- Room amenity links (join table)
+CREATE INDEX IF NOT EXISTS idx_room_amenity_links_amenity_id ON room_amenity_links(amenity_id);
+
+-- Orders table
+CREATE INDEX IF NOT EXISTS idx_orders_user_id ON orders(user_id);
+CREATE INDEX IF NOT EXISTS idx_orders_status ON orders(status);
+CREATE INDEX IF NOT EXISTS idx_orders_created_at ON orders(created_at DESC);
+
+-- Room reservations
+CREATE INDEX IF NOT EXISTS idx_room_reservations_room_id ON room_reservations(room_id);
+CREATE INDEX IF NOT EXISTS idx_room_reservations_dates ON room_reservations(check_in, check_out);
+CREATE INDEX IF NOT EXISTS idx_room_reservations_user_id ON room_reservations(user_id);
+
+-- Restaurant reservations
+CREATE INDEX IF NOT EXISTS idx_reservations_date ON reservations(date);
+CREATE INDEX IF NOT EXISTS idx_reservations_user_id ON reservations(user_id);
+
+-- Social event reservations
+CREATE INDEX IF NOT EXISTS idx_social_event_reservations_event_id ON social_event_reservations(social_event_id);
+
+-- Contact messages
+CREATE INDEX IF NOT EXISTS idx_contact_messages_created_at ON contact_messages(created_at DESC);
+
+-- Room comments
+CREATE INDEX IF NOT EXISTS idx_room_comments_room_id ON room_comments(room_id);
+CREATE INDEX IF NOT EXISTS idx_room_comments_created_at ON room_comments(created_at DESC);
+
+-- Messages (chat)
+CREATE INDEX IF NOT EXISTS idx_messages_room ON messages(room_id);
+CREATE INDEX IF NOT EXISTS idx_messages_created_at ON messages(created_at DESC);
+
+-- Enable TOAST compression for large TEXT columns in images
+ALTER TABLE images ALTER COLUMN data SET STORAGE EXTERNAL;
+ALTER TABLE images ALTER COLUMN thumbnail SET STORAGE EXTERNAL;
+ALTER TABLE images ALTER COLUMN medium SET STORAGE EXTERNAL;
+
+-- Vacuum analyze to update statistics
+ANALYZE images;
+ANALYZE rooms;
+ANALYZE orders;
+ANALYZE room_reservations;
+ANALYZE reservations;