fix: correct sha256 hashes for Reticulum packages

- reticulum-0.7.0: sha256-Yku40tRpQh22m4HX142cU/VevHAEfgHZicKFOyp1U/o=
- nomadnet-0.5.2: sha256-WP4IrlKLzFP0U8/00mOo8D9Jp2ubr6Q0peKbw401Nhw=
- lxmf-0.5.1: sha256-2zwTgG283qx1Bt6TKaGJtcwPr2tCNOOIASu8RXC/QLE=
- sidechannel: removed (not available on PyPI)

Cross-compilation note: Full build requires aarch64 hardware or QEMU binfmt setup.

hosts/uconsole/configuration.nix

@@ -9,7 +9,7 @@ let
     src = pkgs.python3Packages.fetchPypi {
       pname = "reticulum";
       version = "0.7.0";
-      hash = "sha256-yKzlCU8hH3RyGK8kqJhR3v5z7x9w2a1b4c5d6e7f8g0=";
+      hash = "sha256-Yku40tRpQh22m4HX142cU/VevHAEfgHZicKFOyp1U/o=";
     };
   };
 
@@ -21,7 +21,7 @@ let
     src = pkgs.python3Packages.fetchPypi {
       pname = "nomadnet";
       version = "0.5.2";
-      hash = "sha256-0000000000000000000000000000000000000000000=";
+      hash = "sha256-WP4IrlKLzFP0U8/00mOo8D9Jp2ubr6Q0peKbw401Nhw=";
     };
     propagatedBuildInputs = [ reticulum ];
   };
@@ -34,20 +34,7 @@ let
     src = pkgs.python3Packages.fetchPypi {
       pname = "lxmf";
       version = "0.5.1";
-      hash = "sha256-0000000000000000000000000000000000000000000=";
-    };
-    propagatedBuildInputs = [ reticulum ];
-  };
-
-  # Sidechannel - Visual UI for Reticulum
-  sidechannel = pkgs.python3Packages.buildPythonPackage {
-    pname = "sidechannel";
-    version = "0.1.0";
-    format = "pyproject";
-    src = pkgs.python3Packages.fetchPypi {
-      pname = "sidechannel";
-      version = "0.1.0";
-      hash = "sha256-0000000000000000000000000000000000000000000=";
+      hash = "sha256-2zwTgG283qx1Bt6TKaGJtcwPr2tCNOOIASu8RXC/QLE=";
     };
     propagatedBuildInputs = [ reticulum ];
   };
@@ -126,7 +113,7 @@ in
     reticulum   # The RNS stack (rnsd, rnsh)
     nomadnet    # Reticulum browser/messaging
     lxmf        # Lightweight Mesh Exchange Protocol
-    sidechannel # Visual UI for Reticulum communication
+    # sidechannel - not available on PyPI, would need to build from source
 
     # HACKING & SECURITY (Kali-like suite)
     nmap            # Port scanning