fix(csr,ui): deliver component outputs to parent bindings

An output only reaches a parent @binding when the component calls
output.<name>(). Two separate faults meant most of the library never got
there, and both failed silently at each end.

HTML lowercases attribute names, so a parent's @sizeChange registered under
"sizechange" while the component emitted "sizeChange". The lookup missed, fell
through to a DOM dispatch, and the binding was never invoked. That made all 17
camelCase outputs undeliverable -- DataTable.pageChange and .rowClick,
Map.markerClick, ChatBubble.messageClick, LayoutSplitter.sizeChange and the
rest. invokeComponentOutput now falls back to a case-insensitive lookup, and a
csr test fails without it.

Separately, 18 components dispatched hand-built CustomEvents rather than
calling output.*. A bubbling event on the component's own root never reaches a
binding, because parent handlers live in a registry only the output proxy
reads. Card, Footer, Breadcrumb, Accordion, alert, Badge, AnnouncementBar,
AvatarGroup, ToggleCount and InputNumber now emit properly; Marquee, Map,
Timeline, List and SearchBox additionally declare the outputs they were
already firing. Dispatches on window are left alone -- that is how Toaster,
Modal and DataTable signal across component boundaries.

Verified in a browser both ways before and after: an AnnouncementBar
dispatching its own bubbling "dismiss" never reached a page-level @dismiss,
and reached it immediately once it called output.dismiss().

This corrects the audit, which called the LayoutSplitter failure "narrow and
unexplained" and read 32 dead outputs as 16 components needing a rebuild.
"Outputs work elsewhere" was an assumption; the components that worked
happened to use lowercase names and output.*. The dead-output ratchet drops
from 32 to 22, and a new test forbids the raw-CustomEvent pattern outright.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/ui/components/Map.wrn

@@ -1,4 +1,12 @@
 component Map {
+  outputs {
+    // markerClick and select both fire for a marker press; select is the
+    // generic name callers reach for, markerClick the explicit one.
+    markerClick(payload: { sourceEvent?: Event; [key: string]: string | number | boolean | null | object })
+    select(payload: { sourceEvent?: Event; [key: string]: string | number | boolean | null | object })
+    zoom(payload: { sourceEvent?: Event; [key: string]: string | number | boolean | null | object })
+  }
+
   props {
     size: string = "default"
     color: string = "primary"
@@ -54,7 +62,7 @@ component Map {
               aria-label='{item.label || item.title || "Map marker"}'
               class="absolute inline-flex size-10 items-center justify-center rounded-full border-4 border-[var(--wire-color-surface-raised)] bg-[var(--wire-color-primary)] text-[var(--wire-color-on-primary)] shadow-lg transition hover:scale-110 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[var(--wire-color-focus)]"
               style='left: {item.x || (20 + index * 12)}%; top: {item.y || (30 + (index % 3) * 18)}%;'
-              @click='event.currentTarget.dispatchEvent(new CustomEvent("markerClick", { bubbles: true, detail: item })); event.currentTarget.dispatchEvent(new CustomEvent("select", { bubbles: true, detail: item }))'
+              @click='output.markerClick(item); output.select(item)'
             >
               <span class='{item.icon || "icon-[lucide--map-pin]"}' aria-hidden="true"></span>
             </button>
@@ -66,7 +74,7 @@ component Map {
             type="button"
             aria-label="Zoom in"
             class="inline-flex size-10 items-center justify-center rounded-xl border border-[var(--wire-color-border)] bg-[var(--wire-color-surface-raised)] text-[var(--wire-color-text)] shadow-sm transition hover:bg-[var(--wire-color-surface-soft)] focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[var(--wire-color-focus)]"
-            @click='event.currentTarget.dispatchEvent(new CustomEvent("zoom", { bubbles: true, detail: { direction: "in" } }))'
+            @click='output.zoom({ direction: "in" })'
           >
             <span class="icon-[lucide--plus] size-4" aria-hidden="true"></span>
           </button>
@@ -74,7 +82,7 @@ component Map {
             type="button"
             aria-label="Zoom out"
             class="inline-flex size-10 items-center justify-center rounded-xl border border-[var(--wire-color-border)] bg-[var(--wire-color-surface-raised)] text-[var(--wire-color-text)] shadow-sm transition hover:bg-[var(--wire-color-surface-soft)] focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[var(--wire-color-focus)]"
-            @click='event.currentTarget.dispatchEvent(new CustomEvent("zoom", { bubbles: true, detail: { direction: "out" } }))'
+            @click='output.zoom({ direction: "out" })'
           >
             <span class="icon-[lucide--minus] size-4" aria-hidden="true"></span>
           </button>