Первоначальный коммит

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

play-life-backend/migrations_old/007_add_deleted_to_projects.sql

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+-- Migration: Add deleted field to projects table
+-- This script adds a deleted boolean field to mark projects as deleted (soft delete)
+
+-- Add deleted column to projects table
+ALTER TABLE projects 
+ADD COLUMN IF NOT EXISTS deleted BOOLEAN NOT NULL DEFAULT FALSE;
+
+-- Create index on deleted column for better query performance
+CREATE INDEX IF NOT EXISTS idx_projects_deleted ON projects(deleted);
+
+-- Add comment for documentation
+COMMENT ON COLUMN projects.deleted IS 'Soft delete flag: TRUE if project is deleted, FALSE otherwise';
+