chore: update OpenAPI spec from monorepo (#516)

Co-authored-by: OpenRouter SDK Bot <sdk-bot@openrouter.ai>

Author: openrouter-docs-sync[bot]

.speakeasy/in.openapi.yaml

@@ -21666,6 +21666,7 @@ components:
         id: 0
         no_speech_prob: 0.01
         seek: 0
+        speaker: 0
         start: 0
         temperature: 0
         text: 'Hello there.'
@@ -21699,6 +21700,10 @@ components:
           description: 'Seek offset of the segment'
           example: 0
           type: 'integer'
+        speaker:
+          description: 'Speaker index for the segment, present when the provider returns diarization data'
+          example: 0
+          type: 'integer'
         start:
           description: 'Segment start time in seconds'
           example: 0
@@ -21766,6 +21771,7 @@ components:
       description: 'A timestamped word, returned when the provider includes word-level timestamps'
       example:
         end: 0.4
+        speaker: 0
         start: 0
         word: 'Hello'
       properties:
@@ -21774,6 +21780,10 @@ components:
           example: 0.4
           format: 'double'
           type: 'number'
+        speaker:
+          description: 'Speaker index for the word, present when the provider returns diarization data'
+          example: 0
+          type: 'integer'
         start:
           description: 'Word start time in seconds'
           example: 0