todo: one file per item, grouped by theme, with a generated index

TODO.md had reached 1050 lines and 72 open items across 28 sections, read mostly
on a phone. It is now a directory: todo/<theme>/<item>.md, one card per file, with
frontmatter carrying id, status, created date and order, and the prose body copied
across verbatim. TODO.md becomes a generated index (bun run todo:index).

Dates: where an item's prose stated one it is used; otherwise its old section's;
otherwise 2026-08-20, floored at the day before the split rather than invented.
date_source records which.

Shaped for a two-way Kanban board, filed as todo/tooling — a card is a file, id is
the identity, frontmatter is the machine's half and the body is the owner's.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

todo/shell/_index.md

@@ -0,0 +1,5 @@
+---
+theme: shell
+heading: "Shell — spotlight and the dock"
+kind: theme
+---

todo/shell/a-spotlight-style-launcher-on-ctrl-space.md

@@ -0,0 +1,17 @@
+---
+id: shell/a-spotlight-style-launcher-on-ctrl-space
+title: "A Spotlight-style launcher, on `ctrl-space`"
+theme: shell
+status: open
+created: 2026-08-20
+date_source: assumed
+order: 1
+---
+
+**A Spotlight-style launcher, on `ctrl-space`.** The dock is full and cannot grow; navigation
+already borrows from macOS (see `docs/navigation-audit.md`), so the launcher is the same borrowing
+taken one step further. Type a few letters, get routes, chats, files, plugins, settings sections —
+and hit enter. Dock settings already exist, so the other half is pruning the dock down to what is
+actually used and letting the launcher carry the rest.
+**Trigger to confirm:** `alt-space` is the owner's preferred chord but is already load-bearing for
+him elsewhere, so `ctrl-space` unless that clashes too.

todo/shell/dock-effects-and-auto-hide.md

@@ -0,0 +1,12 @@
+---
+id: shell/dock-effects-and-auto-hide
+title: "Dock effects, and auto-hide"
+theme: shell
+status: open
+created: 2026-08-20
+date_source: assumed
+order: 2
+---
+
+**Dock effects, and auto-hide.** Wanted alongside the launcher rather than after it: once the
+launcher carries navigation, the dock stops needing to be permanently visible.