feat: initial commit - massive-cloud point cloud processing system

drizzle/0004_task_analysis_smooth_heatmap_enum.sql

@@ -0,0 +1,10 @@
+-- 为 task_analysis_results.type 增加 smooth_heatmap（与 drizzle/schema.ts 一致）
+-- 启动时由 server/_core/index.ts runMigrations 自动执行
+
+ALTER TABLE task_analysis_results
+MODIFY COLUMN type ENUM(
+  'error_analysis',
+  'measurement',
+  'compression',
+  'smooth_heatmap'
+) NOT NULL;