Bug fixes

• OpenAI client:
  • Restored the minimal option in ReasonEffort within OpenAIDataModels (#1412)
  • Fixed missing token usage information in streaming mode (#1072, #1404)
• Bedrock client:
  • Fixed JSON schema generation for Bedrock tools to correctly handle nested objects (#1259, #1361)
  • Fixed parsing of tool usage in Bedrock Anthropic streaming responses (KG-627, #1310)
• DeepSeek structured output: Fixed structured output handling for DeepSeek (KG-537, #1385)
• Gemini 3.0 tool calls: Fixed thought signature handling for tool calls (KG-596, #1317)
• Subtask completion flow: Ensured that subtasks return after a tool call finishes, before issuing a new LLM request (#1322, #1362)

Examples

• Updated the ACP example to use the latest ACP SDK version (#1363)
• Updated the Compose Demo App to use the latest Koog version (#1227)