Add raw-HID SpaceMouse 2D navigation (#650)

Squash of PR #650 by @PedroGuille.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Cargo.lock

@@ -433,6 +433,12 @@ version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
 
+[[package]]
+name = "basic-udev"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a45f9771ced8a774de5e5ebffbe520f52e3943bf5a9a6baa3a5d14a5de1afe6"
+
 [[package]]
 name = "bit-set"
 version = "0.10.0"
@@ -547,6 +553,7 @@ dependencies = [
  "cadcraft-ui-egui",
  "eframe",
  "egui",
+ "hidapi",
  "log",
  "muda",
  "rfd",
@@ -1744,6 +1751,21 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[package]]
+name = "hidapi"
+version = "2.6.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "818c0e1d27887aaf76fe737042e27a66b796a7b099e6d2e1a72d106c2dff3fa6"
+dependencies = [
+ "basic-udev",
+ "cc",
+ "cfg-if",
+ "libc",
+ "nix",
+ "pkg-config",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "icu_collections"
 version = "2.3.0"
@@ -2274,6 +2296,18 @@ dependencies = [
  "jni-sys 0.3.1",
 ]
 
+[[package]]
+name = "nix"
+version = "0.30.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74523f3a35e05aba87a1d978330aef40f67b0304ac79c1c00b294c9830543db6"
+dependencies = [
+ "bitflags 2.13.2",
+ "cfg-if",
+ "cfg_aliases",
+ "libc",
+]
+
 [[package]]
 name = "nohash-hasher"
 version = "0.2.0"