v0.15.0 - Antigravity Subagent Status Cards

Added

• Added rich status cards for Antigravity subagent activity, including agent roles, types, prompts, tool actions, and execution states. (#122)

Fixed

• Added support for both current native invokeSubagent payloads and older captures with arguments on the preceding planner response. (#124)
• Multiple invoked subagents are now all displayed, with tool-specific rendering for define_subagent, send_message, and manage_subagents. (#124)
• Pending, running, completed, canceled, interrupted, invalid, and failed subagent states are now visually distinguishable. (#124)

Security

• Updated brace-expansion to a version containing upstream regular-expression denial-of-service fixes. (#118)