fix(test): add missing media dedup state fields to mock contexts

Pre-existing test mocks lacked pendingMessagingMediaUrls and
messagingToolSentMediaUrls fields added by the media dedup feature,
causing runtime errors in handleToolExecutionEnd.

Co-Authored-By: Claude Opus 4.6 <[email protected]>

src/plugins/wired-hooks-after-tool-call.e2e.test.ts

@@ -41,8 +41,10 @@ function createToolHandlerCtx(params: {
       lastToolError: undefined,
       pendingMessagingTexts: new Map<string, string>(),
       pendingMessagingTargets: new Map<string, unknown>(),
+      pendingMessagingMediaUrls: new Map<string, string>(),
       messagingToolSentTexts: [] as string[],
       messagingToolSentTextsNormalized: [] as string[],
+      messagingToolSentMediaUrls: [] as string[],
       messagingToolSentTargets: [] as unknown[],
       blockBuffer: "",
     },