Rename rbos → redbear everywhere, add redbear-info system tool

Replace all 'rbos'/'RBOS' references with 'redbear'/'Red Bear OS'
across the build system, scripts, docs, and configs. Renamed files:
  rbos.ipxe → redbear.ipxe
  assets/rbos-icon.png → assets/redbear-icon.png
  recipes/system/rbos-info → recipes/system/redbear-info

Added redbear-info: a system tool that enumerates all Red Bear OS
custom components, checks runtime availability via scheme paths and
binary presence, and prints status/test info. Supports --verbose,
--json, and --test output modes. Zero external dependencies.

native_bootstrap.sh

@@ -846,7 +846,7 @@ is_os_redox()
 
 ###############################################################################
 # This function takes care of installing all dependencies for building Red Bear OS on
-# Redox OS itself (bootstrapping RBOS on Redox)
+# Redox OS itself (bootstrapping Red Bear OS on Redox)
 # @params:    $1 the emulator to install, "virtualbox" or "qemu"
 ###############################################################################
 redox()
@@ -1068,10 +1068,10 @@ statusCheck()
 ###########################################################################
 boot()
 {
-    echo "Cloning RBOS repo..."
+    echo "Cloning Red Bear OS repo..."
     git clone https://github.com/vasilito/Red-Bear-OS-3.git --origin upstream
     echo "Creating .config with PODMAN_BUILD=0"
-    echo 'PODMAN_BUILD?=0' > rbos/.config
+    echo 'PODMAN_BUILD?=0' > redbear/.config
     echo "Cleaning up..."
     rm native_bootstrap.sh
     echo
@@ -1084,7 +1084,7 @@ boot()
     echo 'source $HOME/.cargo/env'
     echo
     echo "Run the following commands to build Red Bear OS:"
-    echo "cd rbos"
+    echo "cd redbear"
     MAKE="make"
     if [[ "$(uname)" == "FreeBSD" ]]; then
         MAKE="gmake"