Первоначальный коммит

Co-authored-by: Cursor <cursoragent@cursor.com>

play-life-backend/migrations/000002_fix_weekly_goals_user_id.up.sql

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+-- Migration: Fix weekly_goals.user_id by updating it from projects.user_id
+-- This migration fixes the issue where weekly_goals.user_id was incorrectly set to NULL or wrong user_id
+-- It updates all weekly_goals records to have the correct user_id from their associated project
+
+UPDATE weekly_goals wg
+SET user_id = p.user_id
+FROM projects p
+WHERE wg.project_id = p.id
+  AND (wg.user_id IS NULL OR wg.user_id != p.user_id);