feat(yahweh-widget-stat-card): promover patrón stat card como widget

Iter 15. El patrón "tarjeta de dashboard con border-l accent +
label + value grande + descripción + listing opcional" tenía 2
consumers (minga-explorer + brahman-broker-explorer). Ahora vale
extraer al stack yahweh.

crates/modules/ui_engine/widgets/stat-card/:
- pub fn stat_card(cx, label, value: impl Into<SharedString>,
  description, accent, text, text_dim, recent_items: &[String])
  -> impl IntoElement.
- Compone yahweh-widget-card::card_themed; sin theme directo
  (caller pasa text/text_dim ya resueltos).
- 3 tests #[gpui::test] con TestAppContext + theme: smoke con/sin
  items, type-check value.

minga-explorer:
- Borra fn stat_card local (~60 líneas).
- Borra dep yahweh-widget-card.
- 3 callsites pasan value.to_string() (widget acepta
  Into<SharedString>).

brahman-broker-explorer:
- fn state_card refactorizada como wrap del stat_card compartido,
  preservando la traducción ProbeState→(accent,value,description)
  como helper local app-specific.
- Borra dep yahweh-widget-card.

Sub-header del listing: pasa de "recent (N de TOTAL):" a
"recent (N):" — el widget no conoce TOTAL; el caller lo pone en
label si quiere ("Nodos AST (5 de 247)"). Trade-off aceptable
por reusabilidad genérica.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/apps/brahman-broker-explorer/Cargo.toml

@@ -10,7 +10,7 @@ brahman-handshake = { path = "../../core/brahman-handshake" }
 brahman-sidecar = { path = "../../shared/brahman-sidecar" }
 yahweh-theme = { path = "../../modules/ui_engine/libs/theme" }
 yahweh-widget-banner = { path = "../../modules/ui_engine/widgets/banner" }
-yahweh-widget-card = { path = "../../modules/ui_engine/widgets/card" }
+yahweh-widget-stat-card = { path = "../../modules/ui_engine/widgets/stat-card" }
 yahweh-widget-theme-switcher = { path = "../../modules/ui_engine/widgets/theme-switcher" }
 gpui = { workspace = true }
 

crates/apps/brahman-broker-explorer/src/main.rs

@@ -34,7 +34,7 @@ use gpui::{
 };
 use yahweh_theme::Theme;
 use yahweh_widget_banner::{banner_themed, Banner};
-use yahweh_widget_card::card_themed;
+use yahweh_widget_stat_card::stat_card;
 use yahweh_widget_theme_switcher::theme_switcher;
 
 const POLL_INTERVAL: Duration = Duration::from_secs(5);
@@ -225,6 +225,10 @@ impl Render for Explorer {
     }
 }
 
+/// Wrap del `stat_card` compartido con el mapeo de
+/// `ProbeState` → (label/accent/value/description). Mantenemos
+/// este helper local porque la traducción del enum a strings es
+/// específica del explorer (no es un patrón cross-app).
 #[allow(clippy::too_many_arguments)]
 fn state_card(
     cx: &mut Context<Explorer>,
@@ -236,21 +240,18 @@ fn state_card(
     accent_down: gpui::Rgba,
     accent_pending: gpui::Rgba,
 ) -> impl IntoElement {
-    let (label, accent, value, description): (&str, gpui::Rgba, String, String) = match state {
+    let (accent, value, description): (gpui::Rgba, String, String) = match state {
         ProbeState::Pending => (
-            "Estado",
             accent_pending,
             "PENDING".into(),
             "esperando primer probe…".into(),
         ),
         ProbeState::Down { reason } => (
-            "Estado",
             accent_down,
             "DOWN".into(),
             format!("connect failed: {reason}"),
         ),
         ProbeState::UpNoProvider { flow } => (
-            "Estado",
             accent_partial,
             "UP / NO PROVIDER".into(),
             format!("broker reachable; sin productor para flow `{flow}`"),
@@ -259,7 +260,6 @@ fn state_card(
             flow,
             producer_socket,
         } => (
-            "Estado",
             accent_up,
             "UP / PROVIDER".into(),
             format!(
@@ -269,27 +269,7 @@ fn state_card(
         ),
     };
 
-    card_themed(cx)
-        .border_l_4()
-        .border_color(accent)
-        .child(
-            div()
-                .text_color(accent)
-                .text_size(px(11.))
-                .child(SharedString::from(label.to_string())),
-        )
-        .child(
-            div()
-                .text_color(text)
-                .text_size(px(28.))
-                .child(SharedString::from(value)),
-        )
-        .child(
-            div()
-                .text_color(text_dim)
-                .text_size(px(11.))
-                .child(SharedString::from(description)),
-        )
+    stat_card(cx, "Estado", value, &description, accent, text, text_dim, &[])
 }
 
 #[cfg(test)]