Act on a run, and read Home top-down

Runs: a run can now be deleted (DELETE /runs/{id}, cancelling a live one
first), exported as csv from the screen's own filters, and its flow label
opens the flow. Its "Parameters" panel became "Inputs" and lists every
input the flow declares, marking the ones that took the flow's own value
rather than the run's — the comparison table resolves the same defaults
instead of printing "unset".

Home reads brain, dashboards, health, flows: the mosaic is one full-width
scrolling strip, and the flows list and the flow-activity rollups merged
into a single left-joined table so a flow's state and its numbers sit on
one row.

Charts take a drag to narrow the x window and a double click or tap to
come back out. UplotChart holds the scale and passes resetScales:false
while a window is held, which is what the old comment said made this
impossible.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019LrWVRguqbk33YzfEeUx5W

frontend/src/components/Common/OverviewToolbar.tsx

@@ -279,6 +279,7 @@ export function ConfirmDelete({
   names,
   noun,
   pending,
+  description,
   onConfirm,
 }: {
   open: boolean
@@ -286,6 +287,8 @@ export function ConfirmDelete({
   names: string[]
   noun: string
   pending: boolean
+  /** What is actually lost, when the git-backed answer below is not it. */
+  description?: string
   onConfirm: () => void
 }) {
   return (
@@ -298,9 +301,14 @@ export function ConfirmDelete({
               : `Delete these ${names.length} ${noun}s?`}
           </DialogTitle>
           <DialogDescription>
-            {names.length === 1 ? "It goes" : "They go"} from the installation
-            at once. The store's git history keeps what was there, but nothing
-            in the app brings {names.length === 1 ? "it" : "them"} back.
+            {description ?? (
+              <>
+                {names.length === 1 ? "It goes" : "They go"} from the
+                installation at once. The store's git history keeps what was
+                there, but nothing in the app brings{" "}
+                {names.length === 1 ? "it" : "them"} back.
+              </>
+            )}
           </DialogDescription>
         </DialogHeader>
         <DialogFooter>