fix(mitm): Kiro binary EventStream crash + add models & TTS tool filtering

- server.js: isBinaryData() skips binary AWS EventStream bodies (fix JSON parse crash)
- kiro.js: isBinaryEventStream detection + migrate to pipeTransformedEventStream pipeline
- base.js: add pipeTransformedSSE / pipeTransformedEventStream helpers
- chatCore.js: filter tool messages + tools for TTS models via getModelType()
- providerModels.js: add getModelType()
- cliTools.js: add gpt-5-mini (Copilot), glm-5 & minimax-m2.5 (Kiro)

Co-authored-by: Cursor <cursoragent@cursor.com>

open-sse/handlers/chatCore.js

@@ -5,7 +5,7 @@ import { COLORS } from "../utils/stream.js";
 import { createStreamController } from "../utils/streamHandler.js";
 import { refreshWithRetry } from "../services/tokenRefresh.js";
 import { createRequestLogger } from "../utils/requestLogger.js";
-import { getModelTargetFormat, getModelStrip, getModelUpstreamId, PROVIDER_ID_TO_ALIAS } from "../config/providerModels.js";
+import { getModelTargetFormat, getModelStrip, getModelUpstreamId, getModelType, PROVIDER_ID_TO_ALIAS } from "../config/providerModels.js";
 import { createErrorResult, parseUpstreamError, formatProviderError } from "../utils/error.js";
 import { HTTP_STATUS } from "../config/runtimeConfig.js";
 import { handleBypassRequest } from "../utils/bypassHandler.js";
@@ -115,6 +115,12 @@ export async function handleChatCore({ body, modelInfo, credentials, log, onCred
   // Covers both passthrough (source shape) and translated (target shape) flows
   const finalFormat = passthrough ? sourceFormat : targetFormat;
 
+  // TTS models don't support tool messages/function calling
+  if (getModelType(alias, model) === "tts" && translatedBody.messages) {
+    translatedBody.messages = translatedBody.messages.filter(msg => msg.role !== "tool");
+    delete translatedBody.tools;
+  }
+
   // RTK: compress tool_result content
   const rtkStats = compressMessages(translatedBody, rtkEnabled);
   const rtkLine = formatRtkLog(rtkStats);