revert(shell): move iris integration to the iris branch

Reverts 43dfe48, 0692ae3, e0cdcd6 and the cable-description half of
098da70 (the star-prompt stats stay). master returns to the pre-iris
shell setup: atuin in fish/zsh/bash, the down -> pj binding with
PJ_QUIET, and the fish/zsh key bindings as they were. The iris work
lives on the `iris` branch.

dot_zshrc

@@ -4,9 +4,7 @@
 HISTFILE="$HOME/.zsh_history"
 HISTSIZE=10000
 SAVEHIST=10000
-# HIST_IGNORE_SPACE: a leading space keeps a line out of history, as in fish
-# (the ctrl-z binding's hidden ` __jobs_bind_fg` relies on it).
-setopt SHARE_HISTORY HIST_IGNORE_DUPS HIST_IGNORE_SPACE
+setopt SHARE_HISTORY HIST_IGNORE_DUPS
 
 # Completion
 autoload -Uz compinit && compinit
@@ -22,10 +20,6 @@ export GOPATH="$HOME/.local/share/go"
 export GOBIN="$GOPATH/bin"
 case ":$PATH:" in *":$GOBIN:"*) ;; *) PATH="$GOBIN:$PATH" ;; esac
 
-# mise: tool shims and env (GOROOT above comes from it), as fish's
-# conf.d/40-tools.fish does for every fish.
-command -v mise >/dev/null 2>&1 && eval "$(mise activate zsh)"
-
 # Repo roots (ghq) — same as fish's conf.d/10-env.fish; the ghq-repos tv
 # cable (ctrl-o) lists this root.
 export GHQ_ROOT="$HOME/Code"
@@ -71,33 +65,10 @@ command -v suv >/dev/null 2>&1 && eval "$(suv init zsh)"
 # Prompt — starship, consistent with fish
 command -v starship >/dev/null 2>&1 && eval "$(starship init zsh)"
 
-# Material You terminal colors generated from the wallpaper (quickshell),
-# replayed like fish's conf.d/40-tools.fish.
-_qs_seq="$HOME/.local/state/quickshell/user/generated/terminal/sequences.txt"
-[ -f "$_qs_seq" ] && cat "$_qs_seq"
-unset _qs_seq
-
-# zoxide: `z` / `zi`, plus the cd wrapper's fallback (functions/cd.zsh).
-command -v zoxide >/dev/null 2>&1 && eval "$(zoxide init zsh)"
-
-# television: ctrl-t smart autocomplete (its ctrl-r is shadowed by iris's
-# mode toggle, as in fish)
+# television: ctrl-t smart autocomplete (its ctrl-r is taken over by atuin
+# below, as in fish)
 command -v tv >/dev/null 2>&1 && eval "$(tv init zsh)"
 
-# iris (~/.config/iris/config.toml): inline completion menu, same as fish.
-# The init's first half `exec`s iris from an interactive zsh on a tty; iris
-# starts a second zsh in its pty, which runs this file again, and there the
-# second half installs the line/cwd/command hooks. `IRIS_RESCUE=1 zsh` skips
-# it. Placed before syntax highlighting, which must stay last.
-if command -v iris >/dev/null 2>&1; then
-    eval "$(iris init zsh)"
-    # Inside iris: PROMPT_SP pads the line with spaces + CR before each prompt
-    # (the inverse `%` partial-line marker). iris reads that echo as a typed
-    # space, so every prompt opened with a stale query and a stray first
-    # suggestion (`4channels`) got inserted on the next key.
-    [[ -n $IRIS_PID ]] && unsetopt PROMPT_SP
-fi
-
 # Fish-style syntax highlighting (zsh-users/zsh-syntax-highlighting).
 # MUST stay last in .zshrc: it wraps every zle widget defined above
 # (keybinds, compinit, suv/starship hooks).
@@ -109,6 +80,10 @@ for _zsh_hl in \
 done
 unset _zsh_hl
 
+. "$HOME/.atuin/bin/env"
+
+eval "$(atuin init zsh)"
+
 # >>> termium >>>
 case ":$PATH:" in *:'/home/prad/.local/bin':*) ;; *) export PATH='/home/prad/.local/bin':"$PATH" ;; esac
 # <<< termium <<<