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/files-app/rows-are-still-not-links.md

@@ -0,0 +1,24 @@
+---
+id: files-app/rows-are-still-not-links
+title: "Rows are still not links"
+theme: files-app
+status: open
+created: 2026-08-20
+date_source: assumed
+order: 1
+---
+
+**Rows are still not links.** This is the half that did not get done, and it is the original
+finding. Both list and grid render `<div onDoubleClick>` (`FileItem.tsx:701,748`), and search
+results render `<div onClick>` (`FileViewContainer.tsx:187`) — the "opaque click" that
+`docs/navigation-audit.md` names. No cmd-click into a new tab, no middle-click, not
+link-focusable, and the target lives in a closure rather than the DOM.
+
+It is now much easier than it was: `folderHref(path)` gives a folder's URL and `hrefForPath` gives
+a full `To` with the overlay already stripped, so a row becomes
+`<Link to={hrefForPath(childPath)}>` and a file row becomes a link that sets `?view=<name>`. The
+breadcrumb has done exactly this since before today and is the model.
+
+Watch for: a row is also a click target for SELECTION (single click selects, double opens,
+shift/cmd extend). An anchor changes what those gestures mean by default, so the selection
+handlers have to keep working and `preventDefault` where they win.