fix(cli): prevent infinite loop on empty tool-calls (#7756)

When the model returns finish_reason "tool-calls" but emits zero tool call
parts, the prompt loop spins indefinitely. Detect this degenerate case in the
processor after the stream completes: if finish is "tool-calls" but no tool
parts exist, convert finish to "stop" so the loop's exit checks terminate
normally.

packages/opencode/src/session/processor.ts

@@ -443,6 +443,13 @@ export namespace SessionProcessor {
               })
             }
           }
+          // kilocode_change start — guard empty tool-calls (#7756)
+          const empty = input.assistantMessage.finish === "tool-calls" && !p.some((part) => part.type === "tool")
+          if (empty) {
+            log.warn("empty tool-calls", { messageID: input.assistantMessage.id })
+            input.assistantMessage.finish = "stop"
+          }
+          // kilocode_change end
           input.assistantMessage.time.completed = Date.now()
           await Session.updateMessage(input.assistantMessage)
           if (needsCompaction) return "compact"