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/configs/yazi.toml

@@ -12,10 +12,35 @@ max_width  = 600
 max_height = 900
 
 [opener]
-edit = [{ run = 'nano "$@"', block = true }]
+edit = [
+  { run = '${EDITOR:-nano} "$@"', block = true },
+]
+open = [
+  { run = 'xdg-open "$@"', orphan = true },
+]
+reveal = [
+  { run = 'xdg-open "$(dirname "$1")"', orphan = true },
+]
 
 [open]
 rules = [
-  { mime = "text/*",        use = "edit" },
-  { mime = "image/*",       use = "open" },
+  { mime = "text/*",           use = "edit" },
+  { mime = "image/*",          use = "open" },
+  { mime = "video/*",          use = "open" },
+  { mime = "audio/*",          use = "open" },
+  { mime = "application/pdf",  use = "open" },
+  { mime = "application/json", use = "edit" },
+  { mime = "*/xml",            use = "edit" },
+  { name = "*.md",             use = "edit" },
+  { name = "*.yml",            use = "edit" },
+  { name = "*.yaml",           use = "edit" },
+  { name = "*.toml",           use = "edit" },
+  { name = "*.conf",           use = "edit" },
+  { name = "*.sh",             use = "edit" },
+]
+
+[plugin]
+prepend_previewers = [
+  # Image preview via kitty protocol (native dans kitty)
+  { mime = "image/*", run = "image" },
 ]