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/hyprland/themes/kanagawa/hyprland.conf

@@ -0,0 +1,12 @@
+$activeBorderColor = rgb(dcd7ba)
+
+general {
+    col.active_border = $activeBorderColor
+}
+
+group {
+    col.border_active = $activeBorderColor
+}
+
+# Kanagawa backdrop is too strong for detault opacity
+windowrule = opacity 0.98 0.95, match:tag terminal

features/desktop/hyprland/themes/lumon/hyprland.conf

@@ -0,0 +1,26 @@
+$activeBorderColor = rgb(f2fcff)
+$activeShadowColor = rgb(6fb8e3)
+$inactiveBorderColor = rgba(30486099)
+$inactiveShadowColor = rgba(30486077)
+
+general {
+    col.active_border = $activeBorderColor
+    col.inactive_border = $inactiveBorderColor
+    gaps_in = 8
+    gaps_out = 16
+}
+
+group {
+    col.border_active = $activeBorderColor
+    col.border_inactive = $inactiveBorderColor
+}
+
+decoration {
+    shadow {
+      enabled = true
+      range = 16
+      render_power = 4
+      color = $activeShadowColor
+      color_inactive = $inactiveShadowColor
+    }
+}

features/desktop/hyprland/themes/nord/hyprland.conf

@@ -0,0 +1,9 @@
+$activeBorderColor = rgb(81a1c1)
+
+general {
+    col.active_border = $activeBorderColor
+}
+
+group {
+    col.border_active = $activeBorderColor
+}

features/desktop/hyprland/themes/retro-82/hyprland.conf

@@ -0,0 +1,9 @@
+$activeBorderColor = rgb(faa968)
+
+general {
+    col.active_border = $activeBorderColor
+}
+
+group {
+    col.border_active = $activeBorderColor
+}

features/desktop/hyprland/themes/summer-night/hyprland.conf

@@ -0,0 +1,61 @@
+# --- Everforest Color Palette ---
+$bg0     = rgba(2d353bee)
+$bg1     = rgba(343f44ee)
+$bg2     = rgba(3d484dee)
+$bg3     = rgba(475258ee)
+$bg4     = rgba(4f585eee)
+$bg5     = rgba(56635fee)
+$fg      = rgba(d3c6aaee)
+$red     = rgba(e67e80ee)
+$orange  = rgba(e69875ee)
+$yellow  = rgba(dbbc7fee)
+$green   = rgba(a7c080ee)
+$aqua    = rgba(83c092ee)
+$blue    = rgba(7fbbb3ee)
+$purple  = rgba(d699b6ee)
+$grey0   = rgba(7a8478ee)
+$grey1   = rgba(859289ee)
+$grey2   = rgba(9da9a0ee)
+
+general {
+    gaps_in = 6
+    gaps_out = 12
+    border_size = 3
+    col.active_border = $fg
+    col.inactive_border = $bg5
+    layout = dwindle
+    resize_on_border = true
+}
+
+decoration {
+    rounding = 10
+    
+    blur {
+        enabled = true
+        size = 5
+        passes = 3
+        new_optimizations = true
+        ignore_opacity = true
+    }
+
+    shadow {
+        enabled = true
+        range = 20
+        render_power = 3
+        color = rgba(00000044)
+    }
+}
+
+animations {
+    enabled = true
+    bezier = overshot, 0.05, 0.9, 0.1, 1.05
+    bezier = smoothOut, 0.36, 0, 0.66, -0.56
+    bezier = smoothIn, 0.25, 1, 0.5, 1
+
+    animation = windows, 1, 3, overshot, slide
+    animation = windowsOut, 1, 3, smoothOut, slide
+    animation = windowsMove, 1, 3, default
+    animation = border, 1, 3, default
+    animation = fade, 1, 3, smoothIn
+    animation = workspaces, 1, 3, smoothIn, slide
+}