fix(terminal): search box as full-width strings; indent no longer adds 8px

app/globals.css

@@ -366,7 +366,7 @@
   }
 }
 /* terminal: widths and indents in character cells */
-@utility indent-* {
+@utility pl-cells-* {
   padding-inline-start: calc(--value(integer) * 1ch);
 }
 @utility cell-wide {

registry.json

@@ -680,7 +680,7 @@
         }
       },
       "css": {
-        "@utility indent-*": {
+        "@utility pl-cells-*": {
           "padding-inline-start": "calc(--value(integer) * 1ch)"
         },
         "@utility cell-wide": {

registry/winlab/blocks/claude-code/claude-code.tsx

@@ -735,30 +735,52 @@ function Marketplace({
   )
 }
 
-// A search field in a menu, such as the one above /plugins > Discover: a
-// round box drawn with box characters, as wide as the screen.
+// How many monospace cells fit across `ref`: a terminal box is drawn to the
+// window's width, one character per cell. The probe holds 10 cells.
+function useColumns(ref: React.RefObject<HTMLDivElement | null>) {
+  const [columns, setColumns] = React.useState(0)
+  React.useEffect(() => {
+    const row = ref.current
+    const probe = row?.querySelector("[data-probe]")
+    if (!row || !probe) return
+    const measure = () =>
+      setColumns(
+        Math.floor(row.clientWidth / (probe.getBoundingClientRect().width / 10))
+      )
+    // The observer reports the first size as soon as it starts; the web font
+    // can arrive later and change the cell width.
+    const observer = new ResizeObserver(measure)
+    observer.observe(row)
+    document.fonts.ready.then(measure)
+    return () => observer.disconnect()
+  }, [ref])
+  return columns
+}
+
+// A search field in a menu, such as the one in /plugins > Discover: a round
+// box as wide as the screen. Each row is one string, the way the terminal
+// prints it, so the box copies whole.
 function SearchBox({ placeholder = "Search…" }: { placeholder?: string }) {
-  const edge = (left: string, right: string) => (
-    <Line indent={2} className="flex whitespace-nowrap">
-      <T tone="inactive">{left}</T>
-      <T tone="inactive" className="min-w-0 flex-1 overflow-hidden">
-        {"─".repeat(240)}
-      </T>
-      <T tone="inactive">{right}</T>
-    </Line>
-  )
+  const row = React.useRef<HTMLDivElement>(null)
+  const columns = useColumns(row)
+  const inner = Math.max(0, columns - 2)
+  const text = ` ⌕ ${placeholder}`.slice(0, inner).padEnd(inner)
   return (
-    <div className="pb-5">
-      {edge("╭", "╮")}
-      <Line indent={2} className="flex">
-        <T tone="inactive">│</T>
-        <T tone="inactive" className="min-w-0 flex-1">
-          {" ⌕ "}
-          {placeholder}
-        </T>
-        <T tone="inactive">│</T>
-      </Line>
-      {edge("╰", "╯")}
+    <div className="pl-cells-2 pb-5">
+      <div ref={row} className="relative">
+        <span data-probe aria-hidden className="invisible absolute">
+          0000000000
+        </span>
+        <Line>
+          <T tone="inactive">{columns > 1 && `╭${"─".repeat(inner)}╮`}</T>
+        </Line>
+        <Line>
+          <T tone="inactive">{columns > 1 && `│${text}│`}</T>
+        </Line>
+        <Line>
+          <T tone="inactive">{columns > 1 && `╰${"─".repeat(inner)}╯`}</T>
+        </Line>
+      </div>
     </div>
   )
 }
@@ -776,9 +798,9 @@ function cut(text: string, width: number) {
   return text.length > width ? `${text.slice(0, width - 1)}…` : text
 }
 
-// The plugin list of /plugins > Discover: a count, then one row per plugin
-// with its description cut to `width` cells and its version. `shown` rows
-// are drawn; the rest sit under "more below".
+// The plugin list of /plugins > Discover: a count, the search box, then one
+// row per plugin with its description cut to `width` cells and its version.
+// `shown` rows are drawn; the rest sit under "more below".
 function PluginList({
   items,
   choice,
@@ -792,12 +814,13 @@ function PluginList({
 }) {
   return (
     <>
-      <Line indent={2} className="pb-5">
+      <Line indent={2}>
         <T bold>Install Plugins</T>{" "}
         <T tone="inactive">
           ({choice + 1}/{items.length})
         </T>
       </Line>
+      <SearchBox />
       {items.slice(0, shown).map((item, index) => {
         const on = index === choice
         return (

registry/winlab/ui/terminal.tsx

@@ -195,12 +195,12 @@ function TerminalLine({
 }) {
   const pad = [
     "",
-    "indent-1",
-    "indent-2",
-    "indent-3",
-    "indent-4",
-    "indent-5",
-    "indent-6",
+    "pl-cells-1",
+    "pl-cells-2",
+    "pl-cells-3",
+    "pl-cells-4",
+    "pl-cells-5",
+    "pl-cells-6",
   ]
   return (
     <div