chore: clean up repo structure

- Add node_modules/, test-results/, e2e-report/, .omp/ to .gitignore
- Remove throwaway debug scripts (debug-pw*.js, debug-login-dom.js)
- Remove empty mock-server/ directory
- Untrack harness artifact (.omp/plans/)
- Add missing project files to git (e2e tests, Dockerfiles, tooling configs)

root/usr/share/rpcd/ucode/system.uc

@@ -0,0 +1,24 @@
+'use strict';
+
+return {
+	system: {
+		board: {
+			call: function(req) {
+				return {
+					hostname: "TestRouter",
+					model: "OpenWrt x86/64 Container",
+					board_name: "generic",
+					release: {
+						distribution: "OpenWrt",
+						version: "25.12.4",
+						revision: "r0-test",
+						target: "x86/64",
+						description: "OpenWrt 25.12.4 Testing"
+					},
+					kernel: "6.12.0-test",
+					rootfs_type: "ext4"
+				};
+			}
+		}
+	}
+};