Initial commit: 健康管家 AI 健康陪伴助手

- Backend: .NET 10 Minimal API + EF Core + PostgreSQL
- Frontend: Flutter + Riverpod + GoRouter + Dio
- AI: DeepSeek LLM + Qwen VLM (OpenAI-compatible)
- Auth: SMS + JWT (access/refresh tokens)
- Features: AI chat, health tracking, medication management, diet analysis, exercise plans, doctor consultations, report analysis

backend/src/Health.WebApi/Endpoints/UserEndpoints.cs

@@ -0,0 +1,89 @@
+using Health.Infrastructure.Data;
+using Microsoft.EntityFrameworkCore;
+
+namespace Health.WebApi.Endpoints;
+
+/// <summary>
+/// 用户与健康档案 API 端点
+/// </summary>
+public static class UserEndpoints
+{
+    public static void MapUserEndpoints(this WebApplication app)
+    {
+        var group = app.MapGroup("/api/user").RequireAuthorization();
+
+        // 获取个人信息
+        group.MapGet("/profile", async (HttpContext http, AppDbContext db, CancellationToken ct) =>
+        {
+            var userId = GetUserId(http);
+            var user = await db.Users.Select(u => new
+            {
+                u.Id, u.Phone, u.Name, u.Gender, BirthDate = u.BirthDate != null ? u.BirthDate.Value.ToString("yyyy-MM-dd") : null, u.AvatarUrl
+            }).FirstOrDefaultAsync(u => u.Id == userId, ct);
+
+            return Results.Ok(new { code = 0, data = user, message = (string?)null });
+        });
+
+        // 修改资料
+        group.MapPut("/profile", async (UpdateProfileRequest req, HttpContext http, AppDbContext db, CancellationToken ct) =>
+        {
+            var userId = GetUserId(http);
+            var user = await db.Users.FindAsync([userId], ct);
+            if (user == null) return Results.Ok(new { code = 40004, message = "用户不存在" });
+
+            user.Name = req.Name ?? user.Name;
+            user.Gender = req.Gender ?? user.Gender;
+            if (DateOnly.TryParse(req.BirthDate, out var bd)) user.BirthDate = bd;
+            user.UpdatedAt = DateTime.UtcNow;
+            await db.SaveChangesAsync(ct);
+
+            return Results.Ok(new { code = 0, data = new { success = true }, message = (string?)null });
+        });
+
+        // 获取健康档案
+        group.MapGet("/health-archive", async (HttpContext http, AppDbContext db, CancellationToken ct) =>
+        {
+            var userId = GetUserId(http);
+            var archive = await db.HealthArchives.FirstOrDefaultAsync(a => a.UserId == userId, ct);
+            return Results.Ok(new { code = 0, data = archive, message = (string?)null });
+        });
+
+        // 更新健康档案
+        group.MapPut("/health-archive", async (UpdateArchiveRequest req, HttpContext http, AppDbContext db, CancellationToken ct) =>
+        {
+            var userId = GetUserId(http);
+            var archive = await db.HealthArchives.FirstOrDefaultAsync(a => a.UserId == userId, ct);
+            if (archive == null) return Results.Ok(new { code = 40004, message = "档案不存在" });
+
+            archive.Diagnosis = req.Diagnosis ?? archive.Diagnosis;
+            archive.SurgeryType = req.SurgeryType ?? archive.SurgeryType;
+            if (DateOnly.TryParse(req.SurgeryDate, out var sd)) archive.SurgeryDate = sd;
+            if (req.Allergies != null) archive.Allergies = req.Allergies;
+            if (req.DietRestrictions != null) archive.DietRestrictions = req.DietRestrictions;
+            if (req.ChronicDiseases != null) archive.ChronicDiseases = req.ChronicDiseases;
+            archive.FamilyHistory = req.FamilyHistory ?? archive.FamilyHistory;
+            archive.UpdatedAt = DateTime.UtcNow;
+            await db.SaveChangesAsync(ct);
+
+            return Results.Ok(new { code = 0, data = new { success = true }, message = (string?)null });
+        });
+
+        // 注销账号
+        group.MapDelete("/account", async (HttpContext http, AppDbContext db, CancellationToken ct) =>
+        {
+            var userId = GetUserId(http);
+            var user = await db.Users.FindAsync([userId], ct);
+            if (user != null) { db.Users.Remove(user); await db.SaveChangesAsync(ct); }
+            return Results.Ok(new { code = 0, data = new { success = true }, message = (string?)null });
+        });
+    }
+
+    private static Guid GetUserId(HttpContext http) =>
+        Guid.TryParse(http.User.FindFirst(System.Security.Claims.ClaimTypes.NameIdentifier)?.Value, out var id) ? id : Guid.Empty;
+}
+
+public sealed record UpdateProfileRequest(string? Name, string? Gender, string? BirthDate);
+public sealed record UpdateArchiveRequest(
+    string? Diagnosis, string? SurgeryType, string? SurgeryDate,
+    List<string>? Allergies, List<string>? DietRestrictions,
+    List<string>? ChronicDiseases, string? FamilyHistory);