* feat(agents): promote AgentExecutor out of experimental
The default executor was still imported from crewai.experimental. Move it to a stable module and keep the old import as a deprecation warning.
* fix(agents): stabilize executor discriminator
* feat(agents): remove CrewAgentExecutor
AgentExecutor is the only executor. Selecting the deleted class fails immediately, with no compatibility path.
* feat(agents): drop experimental AgentExecutor compatibility
The experimental import path and the legacy experimental discriminator are no longer accepted.
* docs: address executor review comments
Translate the remaining hook comments, document the full executor type, and stop the removal test from hiding an eager export.
* docs: keep translated hook sketches on AgentExecutor
The locale class sketches only needed the CrewAgentExecutor rename. LiteAgent and None stay on the English page, which documents the full type.
Vidit Ostwal
c661df9816