b79ae54b7b
feat(iOS): 更新MNN后端模型配置优化性能 将MNN主模型从Qwen3.5-4B(~2.64GiB)降级为Qwen3.5-2B(~1.1GiB)，因为4B版本 实测运行过慢，影响用户体验。iPhone17+/SME2设备使用2B模型，保留MLX 兜底方案用于模拟器和备用场景，确保AI推理性能和存储效率的平衡。 ```
73 lines
2.7 KiB
Swift
73 lines
2.7 KiB
Swift
import Foundation
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import SwiftData
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/// 「导出身体档案」单条历史。一次成功生成 = 一条 HealthExport。
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///
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/// 与 Indicator/Report 等源记录之间用 `[String]` 弱关联(而不是 SwiftData
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/// 关系),这样源记录被永久删除时,历史导出仍保留为快照。
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///
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/// 属性写法与项目其他 @Model(Indicator/ChatTurn 等)对齐:
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/// 不在属性上写 default,所有默认值都在 `init` 里。
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@Model
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final class HealthExport {
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var prompt: String
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var content: String
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var createdAt: Date
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// 引用回链(§3.3 RAG 引用,W3 再做点击跳转)
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var referencedIndicatorIDs: [String]
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var referencedReportIDs: [String]
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var referencedSymptomIDs: [String]
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var referencedDiaryIDs: [String]
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// 意图抽取快照,供「重新生成」复用,不再二次抽意图
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var inferredTimeFromDate: Date?
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var inferredTimeToDate: Date?
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var inferredIntent: String?
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/// 意图的中文标签(如「感冒就诊」),供「我的导出」列表 badge 展示;可选,旧库走轻量迁移。
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var inferredLabelCN: String?
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// demo 卖点凭证
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/// 模型 tag,如 "Qwen3.5-2B-MNN"(iPhone17+ 主路径)或 "Qwen3.5-2B-4bit"(MLX 兜底)。截图能证明本地推理。
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var modelTag: String
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/// 末次 tok/s,对应 demo 卖点 #6 Live Activity 数据。
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var decodeRate: Double
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init(prompt: String = "",
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content: String = "",
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createdAt: Date = .now,
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referencedIndicatorIDs: [String] = [],
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referencedReportIDs: [String] = [],
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referencedSymptomIDs: [String] = [],
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referencedDiaryIDs: [String] = [],
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inferredTimeFromDate: Date? = nil,
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inferredTimeToDate: Date? = nil,
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inferredIntent: String? = nil,
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inferredLabelCN: String? = nil,
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modelTag: String = "Qwen3.5-2B-MNN",
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decodeRate: Double = 0) {
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self.prompt = prompt
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self.content = content
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self.createdAt = createdAt
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self.referencedIndicatorIDs = referencedIndicatorIDs
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self.referencedReportIDs = referencedReportIDs
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self.referencedSymptomIDs = referencedSymptomIDs
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self.referencedDiaryIDs = referencedDiaryIDs
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self.inferredTimeFromDate = inferredTimeFromDate
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self.inferredTimeToDate = inferredTimeToDate
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self.inferredIntent = inferredIntent
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self.inferredLabelCN = inferredLabelCN
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self.modelTag = modelTag
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self.decodeRate = decodeRate
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}
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}
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extension HealthExport {
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/// 列表 / strip 显示的 prompt 摘要(≤ 30 字 + ...)
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var promptPreview: String {
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let trimmed = prompt.trimmingCharacters(in: .whitespacesAndNewlines)
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if trimmed.count <= 30 { return trimmed }
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return trimmed.prefix(30) + "…"
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}
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}
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