config(fish): add fish completions for cli tools

dot_config/fish/conf.d/00-path.fish

@@ -0,0 +1,14 @@
+# PATH — runs for every shell (scripts need these too).
+# ~/.local/bin and ~/.cargo/bin are handled by inir-path.fish / rustup.fish.
+fish_add_path $HOME/.bun/bin
+fish_add_path $HOME/go/bin
+fish_add_path $HOME/.maestro/bin
+fish_add_path $HOME/.grok/bin
+fish_add_path $HOME/.opencode/bin
+fish_add_path -a $HOME/.foundry/bin
+fish_add_path -a $HOME/local/share/pnpm
+source $HOME/.atuin/bin/env.fish
+
+# pnpm
+set -gx PNPM_HOME $HOME/.local/share/pnpm
+fish_add_path $PNPM_HOME/bin