Homepage strip: Susquehanna stage + 48h flood forecast line; clamp map edge labels

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

src/layouts/Base.astro

@@ -89,6 +89,10 @@ const pageUrl = new URL(Astro.url.pathname, Astro.site);
                   <span class="live-dot" id="knb-dot" aria-hidden="true" />
                   <span id="live-knb" />
                 </div>
+                <div id="sby-stats" class="live-stats" hidden>
+                  <span class="live-dot" id="sby-dot" aria-hidden="true" />
+                  <span id="live-sby" />
+                </div>
               </div>
               <figure id="knb-map" class="knb-map" hidden>
                 <figcaption class="knb-map-head">
@@ -374,7 +378,7 @@ const pageUrl = new URL(Astro.url.pathname, Astro.site);
             .sort((a, b) => a.lon - b.lon);
           top.forEach((r, i) => {
             const t = document.createElementNS(NS, 'text');
-            t.setAttribute('x', String(px(r.lon)));
+            t.setAttribute('x', String(Math.min(594, Math.max(46, px(r.lon)))));
             t.setAttribute('y', String(py(r.lat) + (i % 2 ? 20 : -11)));
             t.setAttribute('text-anchor', 'middle');
             t.textContent = `${r.name.toLowerCase()} ${Math.round(r.wait_min)}m`;
@@ -390,6 +394,52 @@ const pageUrl = new URL(Astro.url.pathname, Astro.site);
       }
     </script>
 
+    <script>
+      // Homepage Susquehanna strip: live stage + the 48h quantile stage
+      // forecast from the sunbury-flood pipeline. Fail-closed.
+      const sbyRow = document.getElementById('sby-stats');
+      if (sbyRow) {
+        try {
+          const res = await fetch('https://api.c0smere.net/sunbury/forecast');
+          if (!res.ok) throw new Error(String(res.status));
+          const f = await res.json();
+          const h48 =
+            f.horizons.find((h: any) => h.horizon_h === 48) ??
+            f.horizons[f.horizons.length - 1];
+          const maxProb = Math.max(
+            ...f.horizons.map((h: any) => h.prob_above_flood),
+          );
+          document
+            .getElementById('sby-dot')!
+            .classList.add(
+              maxProb >= 0.3
+                ? 'knb-dot-packed'
+                : maxProb >= 0.05
+                  ? 'knb-dot-typical'
+                  : 'knb-dot-quiet',
+            );
+          const slot = document.getElementById('live-sby')!;
+          const put = (text: string, strong = false) => {
+            const el = document.createElement('span');
+            if (strong) el.className = 'v';
+            el.textContent = text;
+            slot.append(el);
+          };
+          put('susquehanna @ sunbury: ');
+          put(`${f.current_stage_ft} ft`, true);
+          put(' · 48h forecast: ');
+          put(`${h48.p50} ft`, true);
+          put(` (${h48.p10}–${h48.p90})`);
+          put(' · flood odds ');
+          put(maxProb < 0.005 ? '<1%' : `${Math.round(maxProb * 100)}%`, true);
+          sbyRow.hidden = false;
+          document.getElementById('live-strips')!.hidden = false;
+        } catch {
+          /* API down: row stays hidden */
+        }
+      }
+    </script>
+
     <script>
       // Odometer: fetch totals once, then animate forward at the lifetime
       // average rate. Looks live, but deliberately never exposes current