选择模板类别与类型，自动填充各章节示例
JSON 数组，每项结构：{"name":"万能试验机","model":"CMT5205","accuracy":"±0.5%","calibration_required":true,"notes":"量程 100kN"}
JSON 对象，例如：{"shape":"圆形截面","dimensions":{"diameter":10,"gauge_length":50},"preparation":"按GB/T 228.1第7章","count":3,"marking":"打标点"}
JSON 对象，例如：{"temperature_range":{"min":10,"max":35,"unit":"°C"},"humidity_range":{"min":20,"max":80,"unit":"%"},"loading_rate":{"value":5,"unit":"mm/min"},"environment_notes":"无振动无腐蚀环境"}
JSON 数组，每项：{"name":"试样对中","description":"试样轴线与受力轴线夹角≤1°","type":"operational","severity":"warning"}（type: safety/operational/quality, severity: info/warning/critical）
JSON 数组，每项：{"name":"specimen_diameter","label":"试样直径","type":"number","unit":"mm","required":true,"default":10,"validation":{"min":1,"max":50}}
JSON 数组，每项：{"name":"force_extension_curve","label":"力-位移曲线","type":"curve","unit":"N/mm","format":"xy_data","required":true,"data_type":"curve","description":"采集过程中的力-位移曲线数据"}（data_type: scalar/curve/table/image/report）
JSON 数组，每项：{"seq":1,"title":"试样制备","description":"按GB/T 228.1第7章制备试样","duration_minutes":30,"inputs":["specimen_diameter"],"outputs":[],"safety_note":"佩戴防护装备","acceptance_criteria":"尺寸公差±0.1mm"}
JSON 数组，每项：{"name":"屈服强度计算","description":"由力-位移曲线计算屈服强度","formula":"Re = F_s / S_0","output_ref":"yield_strength","fitting_type":"linear","parameters":{}}
JSON 数组，每项：{"name":"抗拉强度","criterion":"最小值","operator":"gt","value":400,"unit":"MPa","tolerance":0}
JSON 对象：{"sections":[{"title":"封面","required":true}],"required_charts":["力-位移曲线"],"signatories":["试验员","审核员"]}