fix(stt): support new Soniox v5 compare termination protocol and dynamic origin (v2.10)

Info.plist

@@ -19,7 +19,7 @@
     <key>CFBundlePackageType</key>
     <string>APPL</string>
     <key>CFBundleShortVersionString</key>
-    <string>2.09</string>
+    <string>2.10</string>
     <key>CFBundleVersion</key>
     <string>1</string>
     <key>LSMinimumSystemVersion</key>

src/SonioxClient.swift

@@ -5,7 +5,9 @@ public final class SonioxLiveSession {
     public static let primaryWsBase = "wss://translate.compare.soniox.com/compare/api/compare-websocket"
     public static let fallbackWsBase = "wss://stt.compare.soniox.com/compare/api/compare-websocket"
     private static let userAgent = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
-    private static let origin = "https://translate.compare.soniox.com"
+    public static func origin(for endpoint: String) -> String {
+        return endpoint.contains("translate") ? "https://translate.compare.soniox.com" : "https://stt.compare.soniox.com"
+    }
     
     // Pre-compiled static regexes for zero-allocation hot path
     private static let faRegex: NSRegularExpression = {
@@ -142,7 +144,7 @@ public final class SonioxLiveSession {
         
         var request = URLRequest(url: url)
         request.setValue(SonioxLiveSession.userAgent, forHTTPHeaderField: "User-Agent")
-        request.setValue(SonioxLiveSession.origin, forHTTPHeaderField: "Origin")
+        request.setValue(SonioxLiveSession.origin(for: endpoint), forHTTPHeaderField: "Origin")
         request.timeoutInterval = 12.0
         
         let config = URLSessionConfiguration.default
@@ -255,6 +257,10 @@ public final class SonioxLiveSession {
             }
         }
         
+        // 3. Send official "END" token for complete Soniox termination
+        let endMsg = URLSessionWebSocketTask.Message.string("END")
+        task.send(endMsg) { _ in }
+        
         // Safety timeout fallback: allow up to 4.0s for STT inference & network transit
         DispatchQueue.global().asyncAfter(deadline: .now() + 4.0) { [weak self] in
             guard let self = self else { return }
@@ -425,8 +431,13 @@ public final class SonioxLiveSession {
         
         let sessionEnded = json["session_ended"] as? Bool ?? false
         let sessionDone = (json["type"] as? String) == "session_done"
+        let isFinished = json["finished"] as? Bool ?? false
+        let hasRawFinished: Bool = {
+            guard let raw = json["raw"] as? String else { return false }
+            return raw.contains("\"finished\":true") || raw.contains("\"finished\": true")
+        }()
         
-        if gotFin || sessionEnded || sessionDone {
+        if gotFin || sessionEnded || sessionDone || isFinished || hasRawFinished {
             completeWithCurrentText()
         }
     }
@@ -623,7 +634,7 @@ public final class SonioxLiveSession {
         
         var request = URLRequest(url: url)
         request.setValue(userAgent, forHTTPHeaderField: "User-Agent")
-        request.setValue(origin, forHTTPHeaderField: "Origin")
+        request.setValue(origin(for: endpoint), forHTTPHeaderField: "Origin")
         
         let durationSec = Double(pcmData.count) / 32000.0
         let watchdogTimeout = max(6.5, min(25.0, durationSec * 0.60 + 5.0))
@@ -721,7 +732,14 @@ public final class SonioxLiveSession {
                             }
                         }
                         
-                        let ended = (json["session_ended"] as? Bool ?? false) || ((json["type"] as? String) == "session_done")
+                        let sessionEnded = json["session_ended"] as? Bool ?? false
+                        let sessionDone = (json["type"] as? String) == "session_done"
+                        let isFinished = json["finished"] as? Bool ?? false
+                        let hasRawFinished: Bool = {
+                            guard let raw = json["raw"] as? String else { return false }
+                            return raw.contains("\"finished\":true") || raw.contains("\"finished\": true")
+                        }()
+                        let ended = sessionEnded || sessionDone || isFinished || hasRawFinished
                         if gotFin || ended {
                             lock.lock()
                             let textToReturn = fullCommitted.joined() + (gotFin ? "" : latestNonFinal.joined())
@@ -780,7 +798,9 @@ public final class SonioxLiveSession {
                 if offset >= pcmData.count {
                     let silence = Data(count: 6400)
                     task.send(.data(silence)) { _ in
-                        task.send(.string("{\"type\": \"finalize\"}")) { _ in }
+                        task.send(.string("{\"type\": \"finalize\"}")) { _ in
+                            task.send(.string("END")) { _ in }
+                        }
                     }
                     return
                 }