refactor: reorganize packages and replace LPSchematic with WorldEdit

Restructure core modules into subpackages (generator, schematic, config, session, etc.); add .schem/.nbt schematic pipeline, commands, adaptive stats skeleton, and bootstrap wiring.

src/main/resources/sql/migration_adaptive.sql

@@ -0,0 +1,19 @@
+-- Создание таблицы для адаптивных метрик
+CREATE TABLE IF NOT EXISTS loparkour_player_stats (
+    player_uuid VARCHAR(36) PRIMARY KEY,
+    skill_rating DOUBLE DEFAULT 1.0,
+    sessions_count INT DEFAULT 0,
+    total_jumps INT DEFAULT 0,
+    total_falls INT DEFAULT 0,
+    longest_streak INT DEFAULT 0,
+    last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    INDEX idx_skill_rating (skill_rating),
+    INDEX idx_last_updated (last_updated)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- Миграция существующих данных (если есть старая таблица)
+INSERT INTO loparkour_player_stats (player_uuid, sessions_count, last_updated)
+SELECT player_uuid, COUNT(*) as sessions, MAX(timestamp) as last_updated
+FROM loparkour_scores
+GROUP BY player_uuid
+ON DUPLICATE KEY UPDATE sessions_count = VALUES(sessions_count);