refactor: 重构工艺工序相关命名与数据模型

1.  全局替换"工序"为"工艺"统一术语，包括页面文案、枚举、注释
2.  重构工单与工件工艺数据模型：
    - 新增工艺组合表flow_material作为备料/齐套唯一源头
    - 新增工位状态表station_state支持自主停单/恢复接单
    - 移除station_process派工表，改用工单工艺组合作为路线唯一源头
    - 替换processCode为flowId作为工艺关联标识
    - 重构工件当前进度字段为currentStationNo
3.  删除冗余的静态备份资源文件
4.  调整物料选择组件默认启用仅显示激活物料
5.  优化工单创建/编辑逻辑，新增工艺组合校验与保存

bj_power_wms/internal/db/db.go

@@ -251,7 +251,6 @@ func applyColumnPatches(ctx context.Context) {
 		`CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_outbound_orders_material_code ON outbound_orders (material_code)`,
 		`CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_outbound_orders_inspection_no ON outbound_orders (inspection_no)`,
 		`CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_inventories_inbound_no ON inventories (inbound_no)`,
-		`CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_inventories_outbound_no ON inventories (outbound_no)`,
 		`CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_inventories_material_code ON inventories (material_code)`,
 		`CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_inventories_quality_status ON inventories (quality_status)`,
 		`CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_inventories_manage_mode ON inventories (manage_mode)`,