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.

local/recipes/system/firmware-loader/recipe.toml

@@ -4,7 +4,21 @@
 path = "source"
 
 [build]
-template = "cargo"
+template = "custom"
+script = """
+# Build the firmware-loader daemon
+COOKBOOK_CARGO_PATH=. cookbook_cargo
+
+# Stage firmware blobs (copied by integrate-redbear.sh from local/firmware/amdgpu/)
+if [ -d "${COOKBOOK_SOURCE}/firmware/amdgpu" ]; then
+    AMD_FW_COUNT=$(ls "${COOKBOOK_SOURCE}/firmware/amdgpu/"*.bin 2>/dev/null | wc -l)
+    if [ "${AMD_FW_COUNT}" -gt 0 ]; then
+        mkdir -p "${COOKBOOK_STAGE}/usr/lib/firmware/amdgpu"
+        cp "${COOKBOOK_SOURCE}/firmware/amdgpu/"*.bin "${COOKBOOK_STAGE}/usr/lib/firmware/amdgpu/"
+        echo "Staged ${AMD_FW_COUNT} AMD firmware blobs"
+    fi
+fi
+"""
 
 [package.files]
 "/usr/lib/drivers/firmware-loader" = "firmware-loader"