R rebuilds every pane detached; r refreshes data; Author gains guidance and preview; Repair gains the rebuild log

README.md

@@ -61,11 +61,23 @@ TUIOS it has to close a box.
 | reply | the thread and a reply box | enter (write) · s (status to send) · esc |
 | new | the form that makes a task | tab · enter · esc |
 | project | folder, machine, session, costs, verify command | [ ] tab · ↑↓ j k |
-| repair | health checks and the live layout | [ ] tab · ↑↓ j k |
+| repair | health checks, the live layout, the rebuild log | [ ] tab · ↑↓ j k · R |
 
 Choosing a task on the board and pressing Enter writes it into the project's
 `.harness/harness.toml`, and every other workspace follows within a second.
 
+### Refresh and rebuild
+
+- **`r`** — read the data again in this panel. Nothing closes, nothing moves, the
+  layout is untouched. Use it when the numbers look stale.
+- **`R`** — rebuild everything: `bin/board --replace` closes each pane the layout
+  owns and builds all seven again, in order. It runs detached in its own session,
+  because the panel you pressed it in is one of the panes being replaced; the
+  output is written to `/tmp/paperclip-harness-rebuild.log`, and the Repair
+  workspace shows that log on its third tab.
+
+`R` is on every screen except the new-task form, where letters are text.
+
 ## How an interface change is tested
 
 Not in a plain terminal, and not in tmux. TUIOS owns part of the keyboard and forwards