v0.15.0

⛰️ Features

• (cli) Node tempo mpp onboarding (#193) - (f204f02)
• (config) Add deepseek, minimax, zai, moonshot, qwen, openrouter providers (#185) - (2ddd7cf)
• (mpp) Add server-side close support for Tempo (#187) - (4e69203)
• Configuration hot reload (#179) - (d116de2)

🐛 Bug Fixes

• (cli) Increase warp recursion limit (#199) - (ffb4e88)
• (config) Default provider config (#194) - (154eecf)
• (mpp) Tempo payment flow (#202) - (9e08658)
• (mpp) Add suggested_deposit to Solana session challenges (#184) - (82e02ab)
• (mpp) Use Mutex to lock close guard (#192) - (3040ce9)
• (mpp) Use channel.token for gas fee (#190) - (3ed5f09)
• (mpp) Resolve Tempo backend lookup by payment method name (#186) - (fb2c81f)
• (rejection) Handle BitrouterRejection in recover handler (#200) - (1064c14)

🚜 Refactor

• (api) Gate A2A and MCP handlers behind feature flags (#204) - (b193538)