feat: parse CodeMode execute tool calls from JS script

Парсим JS код из аргумента execute инструмента и извлекаем
вызовы tools.<server>.<tool>(...) — как это делает CodeMode.
Дочерние инструменты показываются в спойлере вместе с обычными.

index.ts

@@ -131,6 +131,26 @@ async function runPlugin(ctx: any, options: any, dataDir: string) {
 
     const sessionsBySessionID = new Map<string, SessionState>()
 
+    // =============================================================================
+    // Parse tool calls from CodeMode JS script
+    // CodeMode creates nested tools: tools.<server>.<tool>(...)
+    // e.g. tools.duckduckgo.search({ query: "..." })
+    // =============================================================================
+
+    function parseCodeModeTools(code: string): string[] {
+      const tools: string[] = []
+      // Match tools.<word>.<word>( — nested tool calls in CodeMode
+      const regex = /tools\.(\w+)\.(\w+)\s*\(/g
+      let match
+      while ((match = regex.exec(code)) !== null) {
+        const toolName = `${match[1]}_${match[2]}`
+        if (!tools.includes(toolName)) {
+          tools.push(toolName)
+        }
+      }
+      return tools
+    }
+
     // =============================================================================
     // Event subscription — collects step data and sends messages per step
     // =============================================================================
@@ -208,6 +228,20 @@ async function runPlugin(ctx: any, options: any, dataDir: string) {
               const tool = step.tools.find(t => t.toolID === toolID)
               if (tool) tool.args = args
             }
+            // Parse CodeMode execute tool — extract child tool calls from JS code
+            if (toolID && step && args) {
+              let parsedArgs: any
+              try { parsedArgs = JSON.parse(args) } catch { continue }
+              const code = parsedArgs?.code || ""
+              if (code) {
+                const childTools = parseCodeModeTools(code)
+                for (const name of childTools) {
+                  if (!step.tools.find(t => t.name === name)) {
+                    step.tools.push({ toolID: `${toolID}/${name}`, name, args: "", result: "", failed: false })
+                  }
+                }
+              }
+            }
             continue
           }