feat: initial fish shell configuration

- Core config layered on CachyOS base with Catppuccin Mocha theming
- Fisher plugins: fzf.fish, catppuccin, autopair, replay, puffer-fish, magic-enter, spark
- Smart CLI wrappers with fallbacks (bat, lsd, btop, dust, prettyping)
- Custom functions: git, docker, network, kitty, AI session management
- Extensive abbreviation system for keyboard-driven workflows
- Secrets/local sourcing pattern for private and machine-specific config
- README with full documentation and personalization guide
- AGPLv3+ license with copyright headers on all source files

functions/parur.fish

@@ -0,0 +1,18 @@
+# Copyright (C) 2026 Rootiest
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+function parur --description 'Interactively search and remove an installed package using fzf'
+    # 1. Use command substitution to get the package list from fzf
+    set -l pkg_list (
+        pacman -Qqs \
+        | fzf --preview 'pacman -Qi {}' --multi
+    )
+
+    # 2. Check if a package was selected.
+    if test (count $pkg_list) -gt 0
+        # 3. Pass the selected packages directly to paru -R
+        paru -R $pkg_list
+    else
+        echo "No packages selected for removal."
+    end
+end