refactor: implement component-based architecture for enhanced maintainability

- Reorganize directory structure into core/, features/, and themes/
- Colocate application Nix logic, configs, scripts, and theme overrides
- Implement 'Inversion of Control' for theming: apps now pull theme-specific layouts
- Update flake.nix and shared library paths to match the new structure
- Document the new Feature-Centric architecture in README.md

features/desktop/waybar/themes/summer-night/config.jsonc

@@ -0,0 +1,122 @@
+{
+  "margin-top": 0,
+  "margin-left": 120,
+  "margin-bottom": 0,
+  "margin-right": 120,
+  "height": 61, 
+  "layer": "top",
+  "position": "top",
+  "spacing": 15,
+  "modules-left": ["custom/launcher", "clock", "clock#date"],
+  "modules-center": ["hyprland/workspaces"],
+  "modules-right": ["idle_inhibitor", "pulseaudio", "custom/battery", "backlight", "tray", "custom/powermenu"],
+
+  "hyprland/workspaces": {
+      "disable-scroll": true,
+      "all-outputs": true,
+      "on-click": "activate",
+      "on-scroll-up": "hyprctl dispatch workspace r+1",
+      "on-scroll-down": "hyprctl dispatch workspace r-1",
+      "persistent_workspaces": {
+          "1": [],
+          "2": [],
+          "3": [],
+          "4": [],
+          "5": [],
+          "6": [],
+          "7": [],
+          "8": [],
+          "9": [],
+          "10": []
+      }
+  },
+
+  "tray": {
+	"icon-size": 20,
+	"spacing": 5
+  },
+  
+  "custom/launcher": {
+      "interval": "once",
+      "format": "",
+      "on-click": "pkill rofi || rofi -show drun",
+      "tooltip-format": "Application Launcher"
+    },
+
+    "backlight": {
+      "max-length": "4",
+      "format": "{icon} {percent}%",
+      "tooltip-format": "{percent}%",
+      "format-icons": ["󱩎","󱩏","󱩐","󱩑", "󱩓", "󱩔", "󰛨"],
+      "on-click": "",
+      "on-scroll-up": "brightnessctl set 10%-",
+      "on-scroll-down": "brightnessctl set +10%"
+  },
+
+  "memory": {
+    "interval": 30,
+    "format": "  {}%",
+    "format-alt":" {used:0.1f}G",
+    "max-length": 10
+},
+
+ "idle_inhibitor": {
+    "format": "{icon}",
+    "format-icons": {
+        "activated": " 󰅶 ",
+        "deactivated": " 󰾪 "
+    }
+},
+
+  "pulseaudio": {
+      "scroll-step": 5,
+      "format": "{icon} {volume}%",
+      "format-bluetooth": "{icon} {volume}%",
+      "format-bluetooth-muted": " {icon}",
+      "format-muted": "  muted",
+      "format-icons": {
+          "headphone": "",
+          "hands-free": "",
+          "headset": "",
+          "phone": "",
+          "portable": "",
+          "car": "",
+          "default": ["", "", ""]
+      },
+      "on-click": "mute-vol",
+      "on-click-middle": "audio-menu",
+      "on-click-right": "pavucontrol",
+      "tooltip-format": "{icon} {desc} | {volume}%"
+  },
+
+"network": {
+      "format-wifi": " {signalStrength}%",
+      "format-ethernet": " {signalStrength}%",
+      "format-disconnected": "󰤭",
+      "on-click": ""
+},
+
+"custom/battery": {
+    "interval": 30,
+    "format": "{}",
+    "exec": "waybar-battery-status",
+    "on-click": "power-menu"
+},
+
+"clock": {
+    "format": " {:%H:%M}",
+    "tooltip": false
+},
+
+"clock#date": {
+  "format": " {:%A, %B %d, %Y}",
+  "on-click": "kitty calcurse",
+  "tooltip-format": "Open calendar"
+},
+
+"custom/powermenu": {
+    "format": "",
+    "on-click": "wlogout",
+    "tooltip": false
+  }
+}

features/desktop/waybar/themes/summer-night/style.css

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+@define-color bg_dim #232a2e;
+@define-color bg0 #2d353b;
+@define-color bg1 #343f44;
+@define-color bg2 #3d484d;
+@define-color bg3 #475258;
+@define-color bg4 #4f585e;
+@define-color bg5 #56635f;
+@define-color bg_visual #543a48;
+@define-color bg_red #514045;
+@define-color bg_green #425047;
+@define-color bg_blue #3a515d;
+@define-color bg_yellow #4d4c43;
+@define-color fg #d3c6aa;
+@define-color red #e67e80;
+@define-color orange #e69875;
+@define-color yellow #dbbc7f;
+@define-color green #a7c080;
+@define-color aqua #83c092;
+@define-color blue #7fbbb3;
+@define-color purple #d699b6;
+@define-color grey0 #7a8478;
+@define-color grey1 #859289;
+@define-color grey2 #9da9a0;
+/* margin: top right bottom left */
+/* Spacing outside the element */
+
+/* padding: top right bottom left */
+/* Spacing inside the element */
+
+* {
+  font-family: JetBrainsMono Nerd Font, FontAwesome;
+  font-size: 13px;
+  font-weight: bold;
+}
+
+window#waybar {
+  background-color: @fg;
+  color: @bg0;
+  transition-property: background-color;
+  transition-duration: 0.5s;
+  border-radius: 0px 0px 15px 15px;
+  transition-duration: .5s;
+
+  border-bottom-width: 5px;
+  border-bottom-color: #7d6a40;
+  border-bottom-style: solid;
+}
+
+#backlight,
+#tray,
+#custom-launcher,
+#clock,
+#clock-date,
+#workspaces,
+#pulseaudio,
+#idle_inhibitor,
+#custom-battery,
+#custom-powermenu {
+  background-color: @bg0;
+  color: @fg;
+  padding-left: 10px;
+  padding-right: 10px;
+  margin-top: 7px;
+  margin-bottom: 12px;
+  border-radius: 10px;
+  border-bottom-width: 5px;
+  border-bottom-color: #161a1d;
+  border-bottom-style: solid;
+}
+
+#tray > .active {
+    color: @fg;
+}
+
+#tray > .needs-attention {
+    color: @green;
+}
+
+#workspaces {
+  padding: 0px;
+}
+
+#workspaces button.active {
+  background-color: @blue;
+  color: @bg0;
+  border-radius: 10px;
+  margin-bottom: -5px;
+  border-bottom-width: 5px;
+  border-bottom-color: #366660;
+  border-bottom-style: solid;
+}
+
+#custom-launcher {
+  background-color: @green;
+  color: @bg0;
+  border-bottom-color: #556a35;
+
+  margin-left: 15px;
+  padding-left: 20px;
+  padding-right: 21px;
+  font-size: 20px;
+}
+
+#custom-powermenu {
+  background-color: @red;
+  color: @bg0;
+  border-bottom-color: #951c1f;
+
+  margin-right: 15px;
+  padding-left: 20px;
+  padding-right: 23px;
+}
+
+#custom-battery.preservation {
+  color: @green;
+}
+
+#idle_inhibitor {
+    padding-left: 10px;
+    padding-right: 10px;
+    font-size: 20px;
+}