fix(elevenlabs): resolve CI lint failures and regenerate schema.d.ts

- Add noqa suppression comments for B008 (FastAPI Depends), BLE001
  (intentional broad-catch in WS session cleanup), and LIT006 (cast of
  dict built from typed query params) with inline reasons
- Replace datetime.now() with datetime.now(tz=timezone.utc) to fix DTZ005
- Replace silent except/pass with a debug log to fix S110
- Regenerate ui/litellm-dashboard/src/lib/http/schema.d.ts to include
  the two new WebSocket stubs (/v1/audio/speech/stream-input and
  /audio/speech/stream-input)

litellm/proxy/proxy_server.py

@@ -10893,7 +10893,7 @@ async def elevenlabs_tts_stream_input_endpoint(
     similarity_boost: float | None = fastapi.Query(None, description="Voice similarity boost (0-1)."),
     style: float | None = fastapi.Query(None, description="Voice style (0-1, v2+ models only)."),
     speed: float | None = fastapi.Query(None, description="Speaking speed (0.7-1.2)."),
-    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth_websocket),
+    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth_websocket),  # noqa: B008  # FastAPI Depends() is required in WebSocket endpoint signatures
 ):
     """
     ElevenLabs WebSocket streaming-input TTS endpoint.
@@ -10905,7 +10905,7 @@ async def elevenlabs_tts_stream_input_endpoint(
     Query parameters map directly to ElevenLabs voice/model options; no
     per-message auth is needed because the proxy injects xi-api-key upstream.
     """
-    from datetime import datetime
+    from datetime import datetime, timezone
     from uuid import uuid4
 
     import httpx
@@ -10949,9 +10949,9 @@ async def elevenlabs_tts_stream_input_endpoint(
         }.items()
         if v is not None
     }
-    voice_settings: Final[VoiceSettings | None] = cast(VoiceSettings, raw_voice_settings) if raw_voice_settings else None
+    voice_settings: Final[VoiceSettings | None] = cast(VoiceSettings, raw_voice_settings) if raw_voice_settings else None  # cast-ok: dict built from typed float query params; structural match is guaranteed
 
-    start_time: Final = datetime.now()
+    start_time: Final = datetime.now(tz=timezone.utc)
     litellm_call_id: Final = str(uuid4())
 
     logging_obj: Final = Logging(
@@ -10973,14 +10973,14 @@ async def elevenlabs_tts_stream_input_endpoint(
             voice_settings=voice_settings,
         )
 
-        end_time: Final = datetime.now()
+        end_time: Final = datetime.now(tz=timezone.utc)
 
         try:
             model_info: Final = litellm.get_model_info(
                 model=litellm_model, custom_llm_provider="elevenlabs"
             )
             cost_per_char: Final = model_info.get("input_cost_per_character") or 0.0
-        except Exception:
+        except Exception:  # noqa: BLE001  # litellm.get_model_info raises multiple undocumented error types
             cost_per_char = 0.0
 
         response_cost: Final = total_chars * cost_per_char
@@ -10998,12 +10998,12 @@ async def elevenlabs_tts_stream_input_endpoint(
             end_time=end_time,
             cache_hit=False,
         )
-    except Exception:
+    except Exception:  # noqa: BLE001  # intentional: catch all session errors to ensure WS cleanup
         verbose_proxy_logger.exception("ElevenLabs TTS stream-input error")
         try:
             await websocket.close(code=1011, reason="Internal server error")
-        except Exception:
-            pass
+        except Exception:  # noqa: BLE001  # WS may already be closed; log and discard
+            verbose_proxy_logger.debug("WebSocket already closed during error cleanup")
 
 
 ######################################################################

ui/litellm-dashboard/src/lib/http/schema.d.ts

@@ -684,6 +684,26 @@ export interface paths {
         patch?: never;
         trace?: never;
     };
+    "/audio/speech/stream-input": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        /**
+         * WebSocket: elevenlabs_tts_stream_input_endpoint
+         * @description WebSocket connection endpoint
+         */
+        get: operations["websocket_elevenlabs_tts_stream_input_endpoint_get"];
+        put?: never;
+        post?: never;
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
     "/audio/transcriptions": {
         parameters: {
             query?: never;
@@ -16062,6 +16082,26 @@ export interface paths {
         patch?: never;
         trace?: never;
     };
+    "/v1/audio/speech/stream-input": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        /**
+         * WebSocket: elevenlabs_tts_stream_input_endpoint
+         * @description WebSocket connection endpoint
+         */
+        get: operations["websocket_elevenlabs_tts_stream_input_endpoint_get_2"];
+        put?: never;
+        post?: never;
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
     "/v1/audio/transcriptions": {
         parameters: {
             query?: never;
@@ -37168,6 +37208,24 @@ export interface operations {
             };
         };
     };
+    websocket_elevenlabs_tts_stream_input_endpoint_get: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description WebSocket Protocol Switched */
+            101: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content?: never;
+            };
+        };
+    };
     audio_transcriptions_audio_transcriptions_post: {
         parameters: {
             query?: never;
@@ -55789,6 +55847,24 @@ export interface operations {
             };
         };
     };
+    websocket_elevenlabs_tts_stream_input_endpoint_get_2: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description WebSocket Protocol Switched */
+            101: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content?: never;
+            };
+        };
+    };
     audio_transcriptions_v1_audio_transcriptions_post: {
         parameters: {
             query?: never;