Add runtime tools and Red Bear service wiring

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/system/redbear-hwutils/source/src/lib.rs

@@ -0,0 +1,80 @@
+use std::fmt;
+
+#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
+pub struct PciLocation {
+    pub segment: u16,
+    pub bus: u8,
+    pub device: u8,
+    pub function: u8,
+}
+
+impl PciLocation {
+    pub fn scheme_path(&self) -> String {
+        format!(
+            "/scheme/pci/{:04x}--{:02x}--{:02x}.{}",
+            self.segment, self.bus, self.device, self.function
+        )
+    }
+}
+
+impl fmt::Display for PciLocation {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "{:04x}:{:02x}:{:02x}.{}",
+            self.segment, self.bus, self.device, self.function
+        )
+    }
+}
+
+pub fn parse_pci_location(name: &str) -> Option<PciLocation> {
+    let (segment, rest) = name.split_once("--")?;
+    let (bus, rest) = rest.split_once("--")?;
+    let (device, function) = rest.split_once('.')?;
+
+    Some(PciLocation {
+        segment: u16::from_str_radix(segment, 16).ok()?,
+        bus: u8::from_str_radix(bus, 16).ok()?,
+        device: u8::from_str_radix(device, 16).ok()?,
+        function: function.parse().ok()?,
+    })
+}
+
+pub fn parse_args(
+    program: &str,
+    usage: &str,
+    args: impl IntoIterator<Item = String>,
+) -> Result<(), String> {
+    let extras: Vec<String> = args.into_iter().skip(1).collect();
+
+    if extras.is_empty() {
+        return Ok(());
+    }
+
+    if extras.len() == 1 && matches!(extras[0].as_str(), "-h" | "--help") {
+        println!("{usage}");
+        return Err(String::new());
+    }
+
+    Err(format!(
+        "{program}: unsupported arguments: {}",
+        extras.join(" ")
+    ))
+}
+
+pub fn describe_usb_device(manufacturer: Option<&str>, product: Option<&str>) -> String {
+    let mut parts = Vec::new();
+
+    if let Some(manufacturer) = manufacturer.filter(|value| !value.is_empty()) {
+        parts.push(manufacturer);
+    }
+    if let Some(product) = product.filter(|value| !value.is_empty()) {
+        parts.push(product);
+    }
+
+    if parts.is_empty() {
+        "USB device".to_string()
+    } else {
+        parts.join(" ")
+    }
+}