Initial release

Sources/KnotchyCore/Session/SessionState.swift

@@ -0,0 +1,36 @@
+public enum SessionState: Equatable, Sendable {
+    case idle
+    case starting(StartStep, folded: Bool)
+    case live(LiveMode)
+    case destroying
+    case destroyed
+    case failed(SessionFailure)
+    case setupRequired(SetupIssue, error: String?)
+    case settingUp(SetupIssue)
+}
+
+public enum StartStep: Sendable {
+    case booting
+    /// Waiting for HELLO.
+    case connecting
+    /// Waiting for `ContentReadiness`.
+    case loading
+}
+
+public enum LiveMode: Sendable {
+    case peek
+    case expanded
+    case collapsed
+}
+
+public enum SessionFailure: Equatable, Sendable {
+    case start(String)
+    case ended(EndReason)
+    /// The VM stays on the pending-cleanup list.
+    case destroyStuck
+}
+
+/// A transient pill, shown whatever the state.
+public enum Notice: Equatable, Sendable {
+    case noWebLink
+}