Provider Lifecycle

状态

• prepared
• allocated
• starting
• running
• releasing
• released
• failed

标准流程

1. prepare
2. allocate
3. start
4. keepAlive
5. release

规范要求

• provider MUST 暴露统一的 prepare / start / keepAlive / release 能力
• provider MUST 能返回结构化错误，而不是只返回日志文本
• provider 释放失败 MUST 可观测并可补偿
• local、sandbox、faas 的差异 MAY 通过 capability 表达，但不得改变主状态机语义