Add stream event logging to worker engine for debugging

Logs every SSE event and final message content block types to stdout
to diagnose what the user sees as "full tool calls" in Telegram.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ts-worker/engine/TelegramWorkerEngine.ts

@@ -178,7 +178,7 @@ Current working directory: ${this.config.defaultCwd}`
         fullText += text
       })
 
-      // Process events from the stream
+      // Process events from the stream — log every event for debugging
       for await (const event of stream) {
         if (abortController.signal.aborted) {
           stream.abort()
@@ -186,6 +186,8 @@ Current working directory: ${this.config.defaultCwd}`
           return
         }
 
+        console.log(`[stream-event] ${JSON.stringify(event)}`)
+
         if (event.type === 'content_block_delta') {
           const delta = event.delta as { type?: string; text?: string }
           if (delta?.type === 'text_delta' && delta.text) {
@@ -199,6 +201,7 @@ Current working directory: ${this.config.defaultCwd}`
 
       // Get final message for usage
       const finalMessage = await stream.finalMessage()
+      console.log(`[final-message] stop_reason=${finalMessage.stop_reason} content_blocks=${JSON.stringify(finalMessage.content.map(b => ({ type: b.type, ...(b.type === 'tool_use' ? { name: (b as any).name } : {}) })))}`)
 
       // Add assistant response to history
       const assistantText =