refactor: remove session syncing metadata

apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatSessions.swift

@@ -5,38 +5,6 @@ public struct ClawdisChatSessionsDefaults: Codable, Sendable {
     public let contextTokens: Int?
 }
 
-public enum ClawdisChatSessionSyncing: Codable, Hashable, Sendable {
-    case bool(Bool)
-    case string(String)
-
-    public init(from decoder: Decoder) throws {
-        let container = try decoder.singleValueContainer()
-        if let b = try? container.decode(Bool.self) {
-            self = .bool(b)
-            return
-        }
-        if let s = try? container.decode(String.self) {
-            self = .string(s)
-            return
-        }
-        throw DecodingError.typeMismatch(
-            ClawdisChatSessionSyncing.self,
-            DecodingError.Context(
-                codingPath: decoder.codingPath,
-                debugDescription: "Expected Bool or String"))
-    }
-
-    public func encode(to encoder: Encoder) throws {
-        var container = encoder.singleValueContainer()
-        switch self {
-        case let .bool(b):
-            try container.encode(b)
-        case let .string(s):
-            try container.encode(s)
-        }
-    }
-}
-
 public struct ClawdisChatSessionEntry: Codable, Identifiable, Sendable, Hashable {
     public var id: String { self.key }
 
@@ -56,7 +24,6 @@ public struct ClawdisChatSessionEntry: Codable, Identifiable, Sendable, Hashable
 
     public let model: String?
     public let contextTokens: Int?
-    public let syncing: ClawdisChatSessionSyncing?
 }
 
 public struct ClawdisChatSessionsListResponse: Codable, Sendable {