docs(docs): add pj-palette and Ghostty grouping documentation

docs/shell/scripts.mdx

@@ -49,6 +49,7 @@ Several scripts below also exist as fish functions of the same name (`ai`, `c2p`
 | [`mtime-sort`](#mtime-sort) | sh + perl | Sort path lines newest-first by mtime |
 | [`omp-session`](#omp-session) | python3 | Resume or start omp for the current repo; backend of the `omp-sessions` cable |
 | [`pj`](#pj) | bash | Task runner across every project task source, on a tv cable |
+| [`pj-palette`](#pj-palette) | bash | pj's tasks plus quick actions as a tmux-palette source |
 | [`yazi-nvim-open`](#yazi-nvim-open) | sh | yazi opener that targets the host Neovim |
 
 ## ai
@@ -332,6 +333,32 @@ A task runner that searches every task source in the project and lets you pick o
 
 **Needs:** `bash`, `tv`, `mtime-sort`, `jq`, `python3` 3.11+ (for `tomllib`), plus whichever runners the project uses.
 
+## pj-palette
+
+```sh
+pj-palette
+pj-palette --run KIND TARGET ROOT RUNNER
+pj-palette --cmd ROOT CMD…
+```
+
+The source of the **Project Tasks** [tmux command palette](/terminal/tmux#command-palette) (`palettes/tasks.json`). Open it with tmux `prefix t`, Ghostty <kbd>ctrl+shift+space</kbd>, or the "Project Tasks" item in the main palette.
+
+With no arguments it reads the active pane's directory (`tmux display -p '#{pane_current_path}'`) and prints palette items as JSON, grouped by category:
+
+| Group | Items | Shown when |
+| --- | --- | --- |
+| Quick | `<pm> install` (alias `install`, `i`), `<pm> run dev` (`dev`) | `package.json` at the project root. The package manager comes from `packageManager`, then the lockfile, as in `pj` |
+| Quick | `uv sync` (`sync`), `uv run python` (`py`, `repl`) | `pyproject.toml` and `uv` installed |
+| Quick | `make` (default target; `m`, `build`) | A Makefile and `make` |
+| Quick | `go run .`, `cargo run` | `go.mod` / `Cargo.toml` and the toolchain |
+| Tasks: `<tool>` | Every record from `pj --list`: npm/bun/pnpm/yarn scripts, Make, just, mise, devbox, pyproject task tables and console scripts | Whatever `pj` finds walking up to the git root |
+
+The project root is the git toplevel, else the pane's directory.
+
+**Run.** Every item opens a new tmux window in the task's directory. The command is passed to `new-window` as separate arguments, so no shell reparses it. `--run` calls `pj --run`, which keeps pj's `openlogs` wrapping of `dev`/`start`/`serve`/`watch` tasks, and `--cmd` runs a quick action. Either way, when the command exits the script prints `[exit N]` and `exec`s `$SHELL`, so the window keeps the output instead of closing.
+
+**Needs:** `pj` and its dependencies, `jq`, tmux.
+
 ## yazi-nvim-open
 
 ```sh