feat(ui): render the Cockpit briefing card from a store

The Cockpit controller no longer writes the briefing card's pages, cycle
toggle, regional news and local conditions: it keeps them as plain state,
starting from cockpitBriefPages.js, and publishes a copy to a new
gev-cockpit store. A new CockpitBriefing component, lifted verbatim from
the Cockpit view, renders it. News rows are keyed by story, so a focused
link never turns into another story on refresh. The controls keep the
controller's listeners; the route card and the signal list keep their
owners' bindings for now. The boot-time kicker translation is gone, as
the card translates its own text.

scripts/package-boundaries.json

@@ -27,6 +27,8 @@
       "src/ui/views/panels/RadioPanel.vue",
       "src/ui/views/panels/SdrCard.vue",
       "src/ui/views/panels/PhoneTabBar.vue",
+      "src/ui/views/panels/CockpitBriefing.vue",
+      "src/ui/cockpitBriefPages.js",
       "src/ui/views/panels/MissionDetail.vue",
       "src/ui/views/panels/MissionRoster.vue",
       "src/ui/views/panels/AwarenessPanel.vue",
@@ -59,6 +61,7 @@
       "src/ui/stores/cctv.js",
       "src/ui/stores/radio.js",
       "src/ui/stores/context.js",
+      "src/ui/stores/cockpit.js",
       "src/ui/stores/location.js",
       "src/ui/stores/streetLevel.js",
       "src/ui/rail/RailChips.vue",
@@ -723,6 +726,7 @@
     "modules": [
       "src/ui/cockpit.js",
       "src/ui/cockpitBriefing.js",
+      "src/ui/cockpitBriefPages.js",
       "src/ui/cockpitCamera.js",
       "src/ui/cockpitContext.js",
       "src/ui/cockpitController.js",
@@ -842,6 +846,7 @@
       "src/ui/clearLayersControl.js",
       "src/ui/cockpit.js",
       "src/ui/cockpitBriefing.js",
+      "src/ui/cockpitBriefPages.js",
       "src/ui/cockpitCamera.js",
       "src/ui/cockpitContext.js",
       "src/ui/cockpitController.js",
@@ -975,6 +980,7 @@
       "src/ui/stores/cctv.js",
       "src/ui/stores/radio.js",
       "src/ui/stores/context.js",
+      "src/ui/stores/cockpit.js",
       "src/ui/stores/location.js",
       "src/ui/stores/display.js"
     ],
@@ -2541,6 +2547,7 @@
       "src/ui/clearLayersControl.js",
       "src/ui/cockpit.js",
       "src/ui/cockpitBriefing.js",
+      "src/ui/cockpitBriefPages.js",
       "src/ui/cockpitCamera.js",
       "src/ui/cockpitContext.js",
       "src/ui/cockpitController.js",
@@ -2946,6 +2953,7 @@
       "src/ui/stores/cctv.js",
       "src/ui/stores/radio.js",
       "src/ui/stores/context.js",
+      "src/ui/stores/cockpit.js",
       "src/ui/stores/location.js",
       "src/ui/stores/display.js"
     ],