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/p.fish

@@ -0,0 +1,33 @@
+# Copyright (C) 2026 Rootiest
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+function p --description 'Put from clipboard'
+    # Check for help flag
+    if contains -- -h $argv; or contains -- --help $argv
+        echo "Usage: p [OPTIONS]"
+        echo ""
+        echo "Description:"
+        echo "  Pastes content from the system clipboard to stdout."
+        echo ""
+        echo "Examples:"
+        echo "  p                Print clipboard content"
+        echo "  p > file.txt     Save clipboard to a file"
+        echo "  p | grep 'foo'   Pipe clipboard content to another command"
+        echo "  cat (p)          Use clipboard content as a filename for cat"
+        return 0
+    end
+
+    # Determine the clipboard provider
+    set -l paste_cmd
+    if type -q wl-paste
+        set paste_cmd wl-paste
+    else if type -q xclip
+        set paste_cmd xclip -selection clipboard -o
+    else
+        echo "Error: No clipboard provider (wl-paste or xclip) found." >&2
+        return 1
+    end
+
+    # Execute the paste command with any provided arguments
+    $paste_cmd $argv
+end