merge: integrate origin/master (v0.5.50) into gitea/new_feature

- Resolve conflicts in chatCore handlers: keep apiKey/streamErrorPatterns
  from the details-filters feature, adopt origin's stripContinuityFields,
  customToolNames, cache-inclusive usage accounting, and Responses-API
  SSE→JSON conversion
- Adopt origin's provider usage handlers (codebuddy-intl, qoder creds)
  and modality detection (audio/video inputs)
- Keep requestDetails apiKey column (schema v2) + masked key persistence

Co-authored-by: CommandCodeBot <noreply@commandcode.ai>

open-sse/handlers/chatCore/streamingHandler.js

@@ -38,6 +38,7 @@ function buildTransformStream({
 	userAgent,
 	reqLogger,
 	toolNameMap,
+	customToolNames,
 	model,
 	connectionId,
 	body,
@@ -68,6 +69,7 @@ function buildTransformStream({
 			body,
 			onStreamComplete,
 			apiKey,
+			customToolNames,
 		);
 	}
 
@@ -83,6 +85,7 @@ function buildTransformStream({
 			body,
 			onStreamComplete,
 			apiKey,
+			customToolNames,
 		);
 	}
 
@@ -118,6 +121,7 @@ export async function handleStreamingResponse({
 	onRequestSuccess,
 	reqLogger,
 	toolNameMap,
+	customToolNames,
 	streamController,
 	onStreamComplete,
 	streamDetailId,
@@ -200,6 +204,7 @@ export async function handleStreamingResponse({
 		userAgent,
 		reqLogger,
 		toolNameMap,
+		customToolNames,
 		model,
 		connectionId,
 		body,