chore: initial project import

backend/fleet/src/Fleet.Server.Enrollment/EnrollmentModels.cs

@@ -0,0 +1,66 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Fleet.Server;
+
+public sealed class EnrollRequest
+{
+    [JsonPropertyName("join_token")]
+    public string JoinToken { get; set; } = "";
+
+    [JsonPropertyName("name")]
+    public string Name { get; set; } = "";
+
+    /// <summary>身份公钥（SPKI，base64）。</summary>
+    [JsonPropertyName("pubkey")]
+    public string PublicKey { get; set; } = "";
+
+    /// <summary>面向对端节点的 TLS 证书指纹（SHA-256，base64）。</summary>
+    [JsonPropertyName("tls_spki")]
+    public string TlsSpki { get; set; } = "";
+
+    /// <summary>持有证明：对 <c>fleet|v1|enroll|{sha256_hex(join_token)}|{pubkey}</c> 的签名（base64）。</summary>
+    [JsonPropertyName("proof")]
+    public string Proof { get; set; } = "";
+
+    [JsonPropertyName("node_version")]
+    public string NodeVersion { get; set; } = "";
+
+    [JsonPropertyName("meta")]
+    public JsonElement? Meta { get; set; }
+}
+
+public sealed class EnrollResponse
+{
+    [JsonPropertyName("node_id")]
+    public string NodeId { get; set; } = "";
+
+    /// <summary>pending | active</summary>
+    [JsonPropertyName("status")]
+    public string Status { get; set; } = "";
+}
+
+/// <summary>RFC 9457 problem+json，带 <c>code</c> 扩展字段。</summary>
+public sealed class FleetProblem
+{
+    [JsonPropertyName("type")]
+    public string Type { get; set; } = "about:blank";
+
+    [JsonPropertyName("title")]
+    public string Title { get; set; } = "";
+
+    [JsonPropertyName("status")]
+    public int Status { get; set; }
+
+    [JsonPropertyName("code")]
+    public string Code { get; set; } = "";
+
+    [JsonPropertyName("detail")]
+    public string? Detail { get; set; }
+}
+
+[JsonSourceGenerationOptions(DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull)]
+[JsonSerializable(typeof(EnrollRequest))]
+[JsonSerializable(typeof(EnrollResponse))]
+[JsonSerializable(typeof(FleetProblem))]
+internal sealed partial class EnrollmentJsonContext : JsonSerializerContext;