feat: show execute result as spoiler after child tools

Порядок когда execute имеет детей:
1. Thinking spoiler
2. Каждый дочерний инструмент с args
3. Execute result spoiler
4. --- separator + step.text

index.ts

@@ -579,8 +579,7 @@ async function runPlugin(ctx: any, options: any, dataDir: string) {
           : []
 
         if (childTools.length > 0) {
-          // Execute has child tool calls — show only children, skip execute entirely
-          // (execute result is in step.text, shown after "---")
+          // Execute has child tool calls — show children, then execute result
           for (const child of childTools) {
             parts.push(`<details>\n<summary>🔧 ${child.name}</summary>\n\n`)
             parts.push(`<b>Args:</b>\n\`\`\`\n${child.args}\n\`\`\`\n\n`)
@@ -591,6 +590,12 @@ async function runPlugin(ctx: any, options: any, dataDir: string) {
             }
             parts.push(`</details>`)
           }
+          // Execute result as a separate spoiler (like a regular tool result)
+          if (executeTool?.result) {
+            parts.push(`<details>\n<summary>🔧 execute</summary>\n\n`)
+            parts.push(`<b>Result:</b>\n\`\`\`\n${executeTool.result}\n\`\`\`\n\n`)
+            parts.push(`</details>`)
+          }
         } else {
           // No child tool calls — show tools normally (including execute as-is)
           for (const tool of step.tools) {