refactor: Reorganize datamate-python (#34)

refactor: Reorganize datamate-python (previously label-studio-adapter) into a DDD style structure.

scripts/db/data-annotation-init.sql

@@ -0,0 +1,19 @@
+CREATE TABLE t_dm_annotation_templates (
+    id VARCHAR(36) PRIMARY KEY,
+    name VARCHAR(32) NOT NULL COMMENT '模板名称',
+    description VARCHAR(255) COMMENT '模板描述',
+    configuration JSON,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    deleted_at TIMESTAMP NULL COMMENT '删除时间（软删除）'
+);
+
+CREATE TABLE t_dm_labeling_projects (
+    id VARCHAR(36) PRIMARY KEY,
+    dataset_id VARCHAR(36) NOT NULL COMMENT '数据集ID',
+    name VARCHAR(32) NOT NULL COMMENT '项目名称',
+    labeling_project_id VARCHAR(8) NOT NULL COMMENT 'Label Studio项目ID',
+    configuration JSON,
+    progress JSON,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    deleted_at TIMESTAMP NULL COMMENT '删除时间（软删除）'
+);