Integrate zosstorage build path and runtime orchestration

Summary:

* add openssh-client to the builder image and mount host SSH keys into the dev container when available

* switch RFS to git builds, register the zosstorage source, and document the extra Rust component

* wire zosstorage into the build: add build_zosstorage(), ship the binary in the initramfs, and extend component validation

* refresh kernel configuration to 6.12.49 while dropping Xen guest selections and enabling counted-by support

* tighten runtime configs: use cached mycelium key path, add zosstorage zinit unit, bootstrap ovsdb-server, and enable openvswitch module

* adjust the network health check ping invocation and fix the RFS pack-tree --debug flag order

* update NOTES changelog, README component list, and introduce a runit helper for qemu/cloud-hypervisor testing

* add ovsdb init script wiring under config/zinit/init and ensure zosstorage is available before mycelium

README.md

@@ -7,7 +7,7 @@ A comprehensive build system for creating custom Alpine Linux 3.22 x86_64 initra
 - **Alpine Linux 3.22** miniroot as base system
 - **zinit** process manager (complete OpenRC replacement)
 - **Rootless containers** (Docker/Podman compatible)
-- **Rust components** with musl targeting (zinit, rfs, mycelium)
+- **Rust components** with musl targeting (zinit, rfs, mycelium, zosstorage)
 - **Aggressive optimization** (strip + UPX compression)
 - **2-stage module loading** for hardware support
 - **GitHub Actions** compatible build pipeline
@@ -222,6 +222,7 @@ Services are migrated from existing `configs/zinit/` directory with proper initi
    - **zinit**: Standard cargo build
    - **rfs**: Standard cargo build  
    - **mycelium**: Build in `myceliumd/` subdirectory
+   - **zosstorage**: Build from the storage orchestration component for Zero-OS
 4. Install binaries to initramfs
 
 ### Phase 4: System Configuration