Add database migration snapshots for comment_votes, comments, movies, and users tables

- Created 0009_snapshot.json with initial structure for comment_votes, comments, movies, and users tables.
- Created 0010_snapshot.json with updated structure for comments, including new fields: pinned and spoiler.
- Created 0011_snapshot.json with further updates to comments, adding anonymous field and refining existing structures.

server/database/migrations/0010_add_comment_pinned_spoiler.sql

@@ -0,0 +1,3 @@
+-- Add pinned and spoiler columns to comments table
+ALTER TABLE `comments` ADD COLUMN `pinned` boolean NOT NULL DEFAULT false;
+ALTER TABLE `comments` ADD COLUMN `spoiler` boolean NOT NULL DEFAULT false;