feat: violet-chaton v2 — palette originale, kitty, AGS, Maple Mono NF

Refonte complete du rice. Palette 100% originale (Mitsuri Kanroji inspired),
zero emprunt Dracula/Catppuccin. 50 fichiers, 3200+ lignes.

Palette v2:
- palette.sh source de verite unique (dark + light)
- 5 accents (magenta, lilac, mitsuri, lavande, champagne)
- 4 semantiques derivees, 4 niveaux texte, 6 fonds
- Gradient signature: magenta → lilac → lavande → mitsuri
- Variante Light: fonds lavande, accents assombris WCAG

Terminal:
- kitty (remplace COSMIC Term comme principal)
- Maple Mono NF (cursive italics, ligatures)
- Cursor trail magenta, splits/layouts tiling, undercurl
- Vi-mode zsh avec cursor shape adaptatif

Shell:
- starship 3 lignes (palette nommee, brain_name, battery, sudo)
- zshrc v2 (nouveaux outils, fzf pimp, shell functions, vi-mode)
- Commandes custom: proj, glog, fkill, colors, hotkeys, weather, y

Desktop:
- AGS config (bar 3-pills, OSD gradient, launcher, notifications)
- COSMIC Dark + Light v2 (7 fichiers RON chacun)
- COSMIC Term v2 (color schemes dark/light, Maple Mono NF)
- GTK3/GTK4 dark + light css
- Vivaldi theme v2

Outils:
- +kitty +dust +procs +tokei +sd +hyperfine +gping +Maple Mono NF
- Propagation palette sur: bat, btop, cava, yazi, lazygit, rofi,
  delta, fastfetch, atuin, ls-colors, vivaldi
- Claude Code statusline brain-aware

Docs:
- README v2 complet (palette, structure, raccourcis, commandes)
- help.md v2 (reference exhaustive)

INSTALL/themes/cosmic/com.system76.CosmicTheme.Dark/v1/warning

@@ -1,74 +1,74 @@
 (
     base: (
-        red: 0.9764706,
-        green: 0.8862745,
-        blue: 0.6862745,
+        red: 0.910,
+        green: 0.784,
+        blue: 0.478,
         alpha: 1.0,
     ),
     hover: (
-        red: 0.8667979,
-        green: 0.7783838,
-        blue: 0.6526866,
+        red: 0.819,
+        green: 0.706,
+        blue: 0.430,
         alpha: 1.0,
     ),
     pressed: (
-        red: 0.54731077,
-        green: 0.46268427,
-        blue: 0.43584663,
+        red: 0.506,
+        green: 0.420,
+        blue: 0.316,
         alpha: 1.0,
     ),
     selected: (
-        red: 0.8667979,
-        green: 0.7783838,
-        blue: 0.6526866,
+        red: 0.819,
+        green: 0.706,
+        blue: 0.430,
         alpha: 1.0,
     ),
     selected_text: (
-        red: 0.90588236,
-        green: 0.6117647,
-        blue: 0.99607843,
+        red: 0.910,
+        green: 0.784,
+        blue: 0.478,
         alpha: 1.0,
     ),
     focus: (
-        red: 0.90588236,
-        green: 0.6117647,
-        blue: 0.99607843,
+        red: 0.910,
+        green: 0.784,
+        blue: 0.478,
         alpha: 1.0,
     ),
     divider: (
-        red: 0.0,
-        green: 0.0,
-        blue: 0.000000000000000000000000000000000000000000055,
+        red: 0.102,
+        green: 0.055,
+        blue: 0.153,
         alpha: 1.0,
     ),
     on: (
-        red: 0.0,
-        green: 0.0,
-        blue: 0.000000000000000000000000000000000000000000055,
+        red: 0.102,
+        green: 0.055,
+        blue: 0.153,
         alpha: 1.0,
     ),
     disabled: (
-        red: 0.9764706,
-        green: 0.8862745,
-        blue: 0.6862745,
-        alpha: 1.0,
+        red: 0.910,
+        green: 0.784,
+        blue: 0.478,
+        alpha: 0.5,
     ),
     on_disabled: (
-        red: 0.4882353,
-        green: 0.44313726,
-        blue: 0.34313726,
+        red: 0.506,
+        green: 0.420,
+        blue: 0.316,
         alpha: 1.0,
     ),
     border: (
-        red: 0.9764706,
-        green: 0.8862745,
-        blue: 0.6862745,
+        red: 0.910,
+        green: 0.784,
+        blue: 0.478,
         alpha: 1.0,
     ),
     disabled_border: (
-        red: 0.9764706,
-        green: 0.8862745,
-        blue: 0.6862745,
+        red: 0.910,
+        green: 0.784,
+        blue: 0.478,
         alpha: 0.5,
     ),
 )