chore(release): bump NixOS to 25.11 and update channels

Upgrade the NixOS `stateVersion` from 25.05 to 25.11 in all system configuration files and update all nix channel URLs to the 25.11 releases. Adjust Home Manager and terminal module configurations accordingly, clean up duplicated SSH keys, and update LLaMA server command lines. Minor housekeeping changes to package definitions and other configuration files are also included.

modules/home/programs/terminal/nvim/default.nix

@@ -133,12 +133,16 @@ in
       ];
 
       extraPackages = with pkgs; [
+        # Toggle Term
+        bashInteractive
+
         # Telescope Dependencies
         fd
         ripgrep
         tree-sitter
 
         # LSP Dependencies
+        eslint_d
         go
         golangci-lint
         golangci-lint-langserver
@@ -151,7 +155,6 @@ in
         nodePackages.typescript-language-server
         nodePackages.vscode-langservers-extracted
         pyright
-        eslint_d
         python312Packages.autopep8
 
         # Formatters
@@ -178,14 +181,14 @@ in
       # Generate Nix Vars
       "nvim/lua/nix-vars.lua".text = ''
         local nix_vars = {
+          clangd = "${pkgs.clang-tools}/bin/clangd",
+          golintls = "${pkgs.golangci-lint-langserver}/bin/golangci-lint-langserver",
           gopls = "${pkgs.gopls}/bin/gopls",
           luals = "${pkgs.lua-language-server}/bin/lua-language-server",
+          omnisharp = "${pkgs.omnisharp-roslyn}/bin/OmniSharp",
           sveltels = "${pkgs.nodePackages.svelte-language-server}/bin/svelteserver",
           tsls = "${pkgs.nodePackages.typescript-language-server}/bin/typescript-language-server",
-          golintls = "${pkgs.golangci-lint-langserver}/bin/golangci-lint-langserver",
           vscls = "${pkgs.nodePackages.vscode-langservers-extracted}",
-          clangd = "${pkgs.clang-tools}/bin/clangd",
-          omnisharp = "${pkgs.omnisharp-roslyn}/bin/OmniSharp",
         }
         return nix_vars
       '';