feat(backend): add SaluteSpeech schema types and extend engine enum

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

cpv3/modules/transcription/schemas.py

@@ -7,7 +7,7 @@ from uuid import UUID
 from cpv3.common.schemas import Schema
 
 
-TranscriptionEngineEnum = Literal["LOCAL_WHISPER", "GOOGLE_SPEECH_CLOUD"]
+TranscriptionEngineEnum = Literal["LOCAL_WHISPER", "GOOGLE_SPEECH_CLOUD", "SALUTE_SPEECH"]
 
 
 class TranscriptionRead(Schema):
@@ -144,3 +144,31 @@ class GoogleSpeechResult(Schema):
 class GoogleSpeechParams(Schema):
     file_path: str
     language_codes: list[str] | None = None
+
+
+# ---------------------------------- SaluteSpeech Models ----------------------------------
+
+
+class SaluteSpeechWord(Schema):
+    word: str
+    start: float
+    end: float
+
+
+class SaluteSpeechSegment(Schema):
+    text: str
+    start: float
+    end: float
+    words: list[SaluteSpeechWord] = []
+
+
+class SaluteSpeechResult(Schema):
+    text: str
+    segments: list[SaluteSpeechSegment]
+    language: str
+
+
+class SaluteSpeechParams(Schema):
+    file_path: str
+    language: str | None = None
+    model: str = "general"