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/hist.fish

@@ -0,0 +1,14 @@
+# Copyright (C) 2026 Rootiest
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+function hist -d "Search fish history and put it in the prompt"
+    set -l selected (history | fzf --reverse --height 40% --with-nth 3..)
+
+    if test -n "$selected"
+        # Strip the timestamp for the final output
+        set -l command (echo $selected | string replace -r '^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2} ' '')
+        
+        echo $command | wl-copy 2>/dev/null
+        commandline -r $command
+    end
+end