refactor: use michaotic username throughout, add cli/kitty/zsh configs and docs

docs/terminal.md

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+# terminal
+
+kitty configuration for gui hosts.
+
+## where
+
+`home/kitty.nix` - imported only by poppy (macbook).
+
+## theme
+
+**Catppuccin-Mocha** - dark, soft colors.
+
+## font
+
+JetBrainsMono Nerd Font, size 12.
+
+## features
+
+- **tabs**: powerline style, at bottom, slanted separators
+- **transparency**: background blur 16
+- **cursor**: beam shape
+- **scrollback**: 10000 lines
+- **cyrillic shortcuts**: cmd+м = paste, cmd+с = copy
+
+## cyrillic config
+
+loads `~/.config/kitty/cyrillic-shortcuts.conf` for additional layout fixes.
+
+## applying changes
+
+kitty reloads config automatically. if not:
+
+```bash
+killall kitty
+# or ctrl+shift+f5 inside kitty
+```