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

drizzle/0006_task_analysis_obj_deviation.sql

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+-- 任务分析类型：CAD 偏差热力（STL/OBJ + 点云距离着色）
+ALTER TABLE task_analysis_results
+MODIFY COLUMN type ENUM(
+  'error_analysis',
+  'measurement',
+  'compression',
+  'smooth_heatmap',
+  'assembly_inspection',
+  'obj_deviation'
+) NOT NULL;