fix(agents): refuse a stream under another run's id or a second time - #797

🟢 commit (${\color{blue}a417f91}$) fix(agents): refuse a stream under another run's id or a second time

🟢 commit (${\color{blue}3b49718}$) doc(orchestration): describe only the factory's own run choice

🟢 commit (${\color{blue}b56d53c}$) fix(server): tie a run's id to its origin on the agent span

🟢 commit (${\color{blue}9ddda20}$) fix(agents): match a run's id by its spelling

🟢 commit (${\color{blue}fdeaa3f}$) fix(orchestration): name an unscoped orchestration by one run id

🟢 commit (${\color{blue}fcad73f}$) refactor(agents): name a run by its RunId

🟢 commit (${\color{blue}5db77be}$) refactor(cli): use the shared duration_ms serde module

🟢 commit (${\color{blue}1e7fd93}$) refactor(events): share timestamp, sequence number, and duration_ms

🟢 commit (${\color{blue}58337b4}$) feat(events): refuse empty and nil identifiers

🟢 commit (${\color{blue}a153df9}$) feat(events): give a session an event envelope carrying run lifecycle