feat(fish-deps): resolve real binary past our generated wrapper shims

Add __fish_real_command, which walks all PATH matches for a name and
returns the first that is NOT one of this config's generated wrappers
(identified by the "# <name>-wrapper-version:" marker; grep -I treats
real ELF binaries as no-match so only our text shims are skipped). It
never returns one of our own wrappers, so a caller embedding the result
can't build a shim that recurses into itself.

Use it for the fish-deps status "(Found at ...)" path so paru/yay show
the real binary instead of the ~/.local/bin logging shim.

functions/_fish_deps_status.fish

@@ -30,7 +30,7 @@ function _fish_deps_status
             end
             set_color green; echo -n " ✓ "; set_color normal
             echo -n "$bin "
-            set_color brblack; echo "(Found at "(command -s $bin)")"; set_color normal
+            set_color brblack; echo "(Found at "(__fish_real_command $bin)")"; set_color normal
         else if test "$tier" = rec
             set_color yellow; echo -n " ⚠ "; set_color normal
             echo -n "$bin "