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.

docs/tools/television.mdx

@@ -70,14 +70,14 @@ Every custom cable except `agents` (a fixed list, see [agents](#agents)), `omp-s
 | --- | --- | --- |
 | [`ghq-repos`](#ghq-repos) | `cable/ghq-repos.toml` | <kbd>ctrl-o</kbd> (`gho`) |
 | [`git-files`](#git-files) | `cable/git-files.toml` | <kbd>ctrl-e</kbd> |
-| [`pj`](#pj) | `cable/pj.toml` | <kbd>ctrl-p</kbd> (`pj`) |
+| [`pj`](#pj) | `cable/pj.toml` | <kbd>ctrl-p</kbd>, <kbd>down</kbd> on an empty prompt (`pj`) |
 | [`files`](#files) | `cable/files.toml` | `tv`, <kbd>ctrl-t</kbd> autocomplete |
 | [`obsidian`](#obsidian) | `cable/obsidian.toml` | `tv obsidian` |
 | [`agents`](#agents) | `cable/agents.toml` | `tv agents` |
 | [`omp-sessions`](#omp-sessions) | `cable/omp-sessions.toml` | `tv omp-sessions`, <kbd>ctrl-a</kbd> (`omp-session`) when it has nothing to resume |
-| [`jobs`](#jobs) | `cable/jobs.toml` | <kbd>ctrl-z</kbd> in fish (`_jobs_bind`) and zsh (`jobs-fg`) with two or more background jobs |
+| [`jobs`](#jobs) | `cable/jobs.toml` | <kbd>ctrl-z</kbd> in fish (`_jobs_bind`) with two or more background jobs |
 
-The keys are bound in fish (`fish_user_key_bindings.fish`), zsh (`keybinds.zsh`), and bash (`keybinds.bash`); bash has no <kbd>ctrl-a</kbd> or <kbd>ctrl-z</kbd> binding. See [fish](/shell/fish#key-bindings) and [bash and zsh](/shell/bash-zsh). Under [iris](/shell/iris), the bindings tell iris a picker is running (`_iris_busy`), or iris would swallow the arrow keys meant for tv.
+The keys are bound in fish (`fish_user_key_bindings.fish`), zsh (`keybinds.zsh`), and bash (`keybinds.bash`); bash has no <kbd>ctrl-a</kbd> binding, and <kbd>ctrl-z</kbd> is fish only. See [fish](/shell/fish#key-bindings) and [bash and zsh](/shell/bash-zsh).
 
 ### ghq-repos
 
@@ -161,7 +161,7 @@ The preview runs `omp-session --preview`: title, last-write time and cwd, then t
 
 ### jobs
 
-The current shell's background jobs, stopped or running, newest first. tv runs as a child process and cannot read the shell's job table, so the <kbd>ctrl-z</kbd> binding (`_jobs_bind` in [fish](/shell/fish#key-bindings), `jobs-fg` in [zsh](/shell/bash-zsh#zsh-key-bindings)) writes it to a temp file named by `$TV_JOBS` and the source just `cat`s that file; opened any other way the list is empty. Entries are `%<id>  <state>  <command><TAB><id><TAB><pgid>`; <kbd>enter</kbd> prints the id and the binding runs `fg %<id>`.
+The current fish shell's background jobs, stopped or running, newest first. tv runs as a child process and cannot read the shell's job table, so `_jobs_bind` ([fish](/shell/fish#key-bindings)) writes it to a temp file named by `$TV_JOBS` and the source just `cat`s that file; opened any other way the list is empty. Entries are `%<id>  <state>  <command><TAB><id><TAB><pgid>`; <kbd>enter</kbd> prints the id and the binding runs `fg %<id>`.
 
 The preview finds the job's processes by process group (procps `ps -g` matches sessions, so it filters `ps -e -o pgid,pid`) and shows the first process's cwd and start time, then `ps --forest` with PID, STAT (`T` = stopped), elapsed time, CPU, RSS, and arguments. The preview script avoids `{`/`}` because tv would parse them as templates and leave `{split:…}` unexpanded.
 
@@ -170,4 +170,4 @@ The preview finds the job's processes by process group (procps `ps -g` matches s
 | <kbd>enter</kbd> | Print the job id; `_jobs_bind` runs `fg` on it |
 | <kbd>ctrl-d</kbd> | `kill` then `reload_source`: SIGTERM to the job's process group, then SIGCONT so a stopped job receives it. Once the group is gone (polled up to 1 s) the row is removed from `$TV_JOBS`, so the reloaded list drops it; a job that ignores SIGTERM stays listed. Fish reports the termination at the next prompt |
 
-**Needs:** `ps`, fish or zsh.
+**Needs:** `ps`, fish.