1b081e4891
The default max_iterations/agent.max_turns budget was set when long agentic runs were rare; complex tasks now routinely exceed 90 tool calls. Raise the default to 500 across every surface that hardcodes the fallback: AIAgent constructor, DEFAULT_CONFIG, CLI resolution chain, gateway env bridge, cron scheduler, and TUI gateway. Explicit user config values are unaffected (deep-merge preserves them; no _config_version bump needed). Docs (en + zh-Hans), CLI help text, tips, and pinned tests updated to match.