a405059aec
v5.9 supersedes v5.8. Records: - base4ba51183— logd kernel-log reader no longer breaks the loop on EOF (was silent data loss); logd read/fcntl/fsync now return ENOSYS or propagate errors instead of Ok(0) stubs; ipcd/uds/stream write backpressure applied in fevent when peer's rcvbuf is full; initfs tools probe page size at runtime (was hardcoded 4 KiB — breaks 16k/64k ARM systems). - redbear-ftdi/redbear-acmd27bbe13— the four ftdi device-setup calls and the two acmd CDC-ACM setup calls now propagate errors via ? instead of swallowing them. Device setup failure is now a hard error, not a silent misconfiguration. All per local/AGENTS.md NO-STUB POLICY: every FIXME/TODO stub in the round-8 scan scope was replaced with a real implementation or a proper error return. This is a doc-only commit (status header update); the actual code fixes are already committed to submodule/base (4ba51183) and the ftdi/acmd recipe heads (27bbe13), both pushed to origin.