feat(server): implement sealed share lifecycle

Signed-off-by: JustMe <mr.toing@outlook.com>

server/src/WebDrop.Api/ApiJson.cs

@@ -0,0 +1,65 @@
+using System.Text.Json.Serialization;
+using WebDrop.Core;
+
+namespace WebDrop.Api;
+
+public sealed class ErrorBody
+{
+    [JsonPropertyName("error")] public required string Error { get; init; }
+}
+
+public sealed class GoneLogBody
+{
+    [JsonPropertyName("error")] public string Error { get; init; } = "gone";
+    [JsonPropertyName("oldest_seq")] public required long OldestSeq { get; init; }
+}
+
+public sealed class ServerInfoBody
+{
+    [JsonPropertyName("protocol")] public int Protocol { get; init; } = 1;
+    [JsonPropertyName("captcha")] public required CaptchaBody Captcha { get; init; }
+    [JsonPropertyName("transports")] public required TransportsBody Transports { get; init; }
+    [JsonPropertyName("limits")] public required LimitsBody Limits { get; init; }
+}
+
+/// <summary>告诉前端要不要出示验证码、widget 该连哪里(Cap 的 data-cap-api-endpoint)。</summary>
+public sealed class CaptchaBody
+{
+    [JsonPropertyName("provider")] public required string Provider { get; init; }
+    [JsonPropertyName("enabled")] public required bool Enabled { get; init; }
+    [JsonPropertyName("api_endpoint")] public string? ApiEndpoint { get; init; }
+}
+
+public sealed class TransportsBody
+{
+    [JsonPropertyName("websocket")] public bool WebSocket { get; init; } = true;
+    [JsonPropertyName("sse")] public bool Sse { get; init; } = true;
+    [JsonPropertyName("http3")] public required bool Http3 { get; init; }
+}
+
+public sealed class LimitsBody
+{
+    [JsonPropertyName("max_payload_bytes")] public required int MaxPayloadBytes { get; init; }
+    [JsonPropertyName("max_frames_per_item")] public required int MaxFramesPerItem { get; init; }
+    [JsonPropertyName("max_channel_bytes")] public required long MaxChannelBytes { get; init; }
+    [JsonPropertyName("max_seats")] public required int MaxSeats { get; init; }
+    [JsonPropertyName("max_ttl_seconds")] public required int MaxTtlSeconds { get; init; }
+}
+
+[JsonSerializable(typeof(ErrorBody))]
+[JsonSerializable(typeof(GoneLogBody))]
+[JsonSerializable(typeof(ServerInfoBody))]
+[JsonSerializable(typeof(ChannelInfo))]
+[JsonSerializable(typeof(ShareInfo))]
+[JsonSerializable(typeof(CreateShareRequest))]
+[JsonSerializable(typeof(ShareSettingsPatch))]
+[JsonSerializable(typeof(FinishShareRequest))]
+[JsonSerializable(typeof(CreateChannelRequest))]
+[JsonSerializable(typeof(ChannelSettingsPatch))]
+[JsonSerializable(typeof(SeatJoined))]
+[JsonSerializable(typeof(List<SeatInfo>))]
+[JsonSerializable(typeof(AppendResult))]
+[JsonSerializable(typeof(SiteverifyRequest))]
+[JsonSerializable(typeof(SiteverifyResponse))]
+[JsonSourceGenerationOptions(DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull)]
+public sealed partial class ApiJson : JsonSerializerContext;