feat(dotfiles): import env layer as stow-style packages with deploy.sh

Import Dankware's environment layer into the repo as home-relative package
trees (niri, gtk-3/4, ghostty, alacritty, fish, zsh, bash, profile,
systemd-user, dconf). scripts/deploy.sh implements stow-equivalent semantics
(check|adopt|sync modes): identical files adopt to symlinks, new files link,
divergent files quarantine-and-replace under .quarantine/<host>/<ts>/ (gitignored).
zz-<hostname> override packages deploy last with override semantics.

Secrets never enter git: GITEA_TOKEN moved from .zshrc into untracked
~/.config/environment.d/secrets.env (0600); tracked .zshrc sources it
guarded. core.hooksPath armed by deploy.sh so the pre-commit secret gate is
live on every machine that deploys.

dotfiles/gtk-3.0/.config/gtk-3.0/gtk.css

@@ -0,0 +1 @@
+@import url("noctalia.css");

dotfiles/gtk-3.0/.config/gtk-3.0/noctalia.css

@@ -0,0 +1,53 @@
+/*
+* GTK Colors (GTK3)
+* Generated by Noctalia's Template Processor
+* stylelint-disable at-rule-no-unknown
+*/
+
+@define-color accent_color #bfc2ff;
+@define-color accent_bg_color #bfc2ff;
+@define-color accent_fg_color #23276f;
+
+@define-color destructive_bg_color #ffb4ab;
+@define-color destructive_fg_color #690005;
+
+@define-color error_bg_color #ffb4ab;
+@define-color error_fg_color #690005;
+
+@define-color window_bg_color #131318;
+@define-color window_fg_color #e4e1e8;
+
+@define-color view_bg_color #131318;
+@define-color view_fg_color #e4e1e8;
+
+@define-color headerbar_bg_color #131318;
+@define-color headerbar_fg_color #e4e1e8;
+@define-color headerbar_backdrop_color @window_bg_color;
+
+@define-color popover_bg_color #1f1f24;
+@define-color popover_fg_color #e4e1e8;
+
+@define-color card_bg_color #1f1f24;
+@define-color card_fg_color #e4e1e8;
+
+@define-color dialog_bg_color #131318;
+@define-color dialog_fg_color #e4e1e8;
+
+@define-color overview_bg_color #1f1f24;
+@define-color overview_fg_color #e4e1e8;
+
+@define-color sidebar_bg_color #1f1f24;
+@define-color sidebar_fg_color #e4e1e8;
+@define-color sidebar_backdrop_color @window_bg_color;
+@define-color sidebar_border_color @window_bg_color;
+
+@define-color secondary_sidebar_bg_color #131318;
+@define-color secondary_sidebar_fg_color #e4e1e8;
+
+/* Backdrop/unfocused states */
+@define-color theme_unfocused_fg_color @window_fg_color;
+@define-color theme_unfocused_text_color @view_fg_color;
+@define-color theme_unfocused_bg_color @window_bg_color;
+@define-color theme_unfocused_base_color @window_bg_color;
+@define-color theme_unfocused_selected_bg_color @accent_bg_color;
+@define-color theme_unfocused_selected_fg_color @accent_fg_color;

dotfiles/gtk-3.0/.config/gtk-3.0/settings.ini

@@ -0,0 +1,6 @@
+[Settings]
+gtk-application-prefer-dark-theme=true
+gtk-cursor-theme-name=capitaine-cursors
+gtk-font-name=Noto Sans 10
+gtk-theme-name=adw-gtk3
+gtk-cursor-theme-size=36