feat(terminal): harden terminal abbreviations and functions

- Wrap Kitty-specific abbreviations and functions with $TERM checks

- Resurrect WezTerm abbreviations and wrap with $TERM_PROGRAM checks

- Add check_fish_deps function to list and verify all fish-related dependencies

- Update README to recommend Kitty and WezTerm and document requirements

- Improve fallback behavior for rg outside of Kitty

functions/check_fish_deps.fish

@@ -0,0 +1,49 @@
+# Copyright (C) 2026 Rootiest
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+function check_fish_deps --description "Check all fish-related dependencies"
+    set -l required fish fisher starship fzf zoxide direnv paru
+    set -l integrations wakatime tailscale
+    set -l recommended eza lsd bat btop dust duf prettyping most rg lazygit lazydocker trash kitty wezterm
+
+    function __print_dep
+        set -l dep $argv[1]
+        if type -q $dep
+            set_color green
+            echo -n "   "
+            set_color normal
+            echo -n "$dep "
+            set_color brblack
+            echo "(Found at "(type -p $dep)")"
+            set_color normal
+        else
+            set_color red
+            echo -n "   "
+            set_color normal
+            echo -n "$dep "
+            set_color brblack
+            echo "(Not installed)"
+            set_color normal
+        end
+    end
+
+    set_color cyan; echo "Required Dependencies:"; set_color normal
+    for dep in $required
+        __print_dep $dep
+    end
+    echo ""
+
+    set_color cyan; echo "Integrations:"; set_color normal
+    for dep in $integrations
+        __print_dep $dep
+    end
+    echo ""
+
+    set_color cyan; echo "Recommended Dependencies:"; set_color normal
+    for dep in $recommended
+        __print_dep $dep
+    end
+    echo ""
+    
+    functions -e __print_dep
+end

functions/clone.fish

@@ -2,6 +2,9 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
 function clone --wraps=clone-in-kitty --description 'alias clone=clone-in-kitty'
-  clone-in-kitty $argv
-        
+    if test "$TERM" != xterm-kitty
+        echo "Error: The 'clone' command requires Kitty terminal." >&2
+        return 1
+    end
+    clone-in-kitty $argv
 end

functions/clonet.fish

@@ -2,6 +2,9 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
 function clonet --wraps='clone-in-kitty --type=tab' --description 'alias clonet=clone-in-kitty --type=tab'
-  clone-in-kitty --type=tab $argv
-        
+    if test "$TERM" != xterm-kitty
+        echo "Error: The 'clonet' command requires Kitty terminal." >&2
+        return 1
+    end
+    clone-in-kitty --type=tab $argv
 end

functions/rg.fish

@@ -2,6 +2,9 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
 function rg --description 'alias rg=rg --hyperlink-format=kitty'
- command rg --hyperlink-format=kitty $argv
-        
+    if test "$TERM" = xterm-kitty
+        command rg --hyperlink-format=kitty $argv
+    else
+        command rg $argv
+    end
 end

functions/split.fish

@@ -2,6 +2,11 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
 function split --description 'Run a command in a new Kitty split'
+    if test "$TERM" != xterm-kitty
+        echo "Error: The 'split' command requires Kitty terminal." >&2
+        return 1
+    end
+
     set -l location hsplit
 
     switch $argv[1]

functions/spwin.fish

@@ -2,5 +2,9 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
 function spwin --wraps='~/.config/kitty/spawn-window.sh' --description 'alias spwin=~/.config/kitty/spawn-window.sh'
+    if test "$TERM" != xterm-kitty
+        echo "Error: The 'spwin' command requires Kitty terminal." >&2
+        return 1
+    end
     ~/.config/kitty/spawn-window.sh $argv
 end