refactor: simplify host composition and shared feature config

modules/features/vicinae.nix

@@ -1,44 +1,58 @@
+{ config, ... }:
+let
+  metaLib = config.meta.lib;
+in
 {
   flake.modules.homeManager.vicinae =
-    { pkgs, inputs, ... }:
+    {
+      pkgs,
+      inputs,
+      ...
+    }:
+    let
+      repoTheme = metaLib.repo.theme.kanagawa;
+      palette = repoTheme.palette;
+    in
     {
       programs.vicinae = {
         enable = true;
         systemd.enable = true;
 
-        themes.kanagawa-wave = {
+        themes.${repoTheme.name} = {
           meta = {
             version = 1;
-            name = "Kanagawa Wave";
+            name = repoTheme.displayName;
             description = "A dark theme inspired by the colors of the famous painting by Katsushika Hokusai.";
             variant = "dark";
             inherits = "vicinae-dark";
           };
           colors = {
             core = {
-              background = "#1F1F28";
-              foreground = "#DCD7BA";
-              secondary_background = "#16161D";
-              border = "#2A2A37";
-              accent = "#7E9CD8";
+              background = palette.background;
+              foreground = palette.foreground;
+              secondary_background = palette.secondaryBackground;
+              border = palette.border;
+              accent = palette.accents.blue;
             };
             accents = {
-              blue = "#7E9CD8";
-              green = "#98BB6C";
-              magenta = "#D27E99";
-              orange = "#FFA066";
-              purple = "#957FB8";
-              red = "#E82424";
-              yellow = "#E6C384";
-              cyan = "#7AA89F";
+              inherit (palette.accents)
+                blue
+                cyan
+                green
+                magenta
+                orange
+                purple
+                red
+                yellow
+                ;
             };
             input.border_focus = "colors.core.accent";
           };
         };
 
         settings.theme = {
-          light.name = "kanagawa-wave";
-          dark.name = "kanagawa-wave";
+          light.name = repoTheme.name;
+          dark.name = repoTheme.name;
         };
 
         extensions = with inputs.vicinae-extensions.packages.${pkgs.stdenv.hostPlatform.system}; [