6.23.0: Архивация досок желаний и товаров

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

play-life-backend/migrations/000033_board_archives.down.sql

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+DROP TABLE IF EXISTS board_archives;

play-life-backend/migrations/000033_board_archives.up.sql

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+CREATE TABLE board_archives (
+    id SERIAL PRIMARY KEY,
+    user_id INTEGER NOT NULL REFERENCES users(id),
+    board_type VARCHAR(20) NOT NULL, -- 'wishlist' or 'shopping'
+    board_id INTEGER NOT NULL,
+    archived_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    UNIQUE(user_id, board_type, board_id)
+);
+
+CREATE INDEX idx_board_archives_user_type ON board_archives(user_id, board_type);