Remove Vicinae input and virtualization module

Add pnpm and lazydocker to system packages and normalize Node/Bun
entries. Expand filesystem options into multi-line arrays, remove an
extra groups comment, update flake.lock (noctalia ref), and tidy README
newline/formatting.

flake.nix

@@ -13,11 +13,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    # Application launcher
-    vicinae = {
-      url = "github:vicinaehq/vicinae";
-    };
-
     # Kernel
     nix-cachyos-kernel.url = "github:xddxdd/nix-cachyos-kernel/release";
 
@@ -37,12 +32,10 @@
   # Binary caches for faster builds
   nixConfig = {
     extra-substituters = [
-      "https://vicinae.cachix.org"
       "https://nix-community.cachix.org"
       "https://attic.xuyh0120.win/lantian"
     ];
     extra-trusted-public-keys = [
-      "vicinae.cachix.org-1:1kDrfienkGHPYbkpNj1mWTr7Fm1+zcenzgTizIcI3oc="
       "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
       "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc="
     ];