feat(brand): AV BEAT 2026 rebrand — blue/navy/white identity

- New AvBeatLogo inline-SVG component (rounded-square emblem with
  forward-leaning AV monogram + horizontal beam detail) at
  src/components/AvBeatLogo.tsx, three variants (full/wordmark/icon).
- Header.tsx now uses the responsive AV BEAT logo lockup in the
  top-left, links to /, full lockup on desktop (emblem+wordmark+tagline),
  emblem+wordmark on tablet, emblem-only on mobile.
- Removed DualSpeedTicker (the 'RECENT FORUM POSTS' ticker strip);
  the news ticker / glow chrome does not match the new aesthetic and the
  forum row was the explicit removal target.
- Tailwind theme + globals.css now expose the AV BEAT 2026 palette as
  semantic tokens: --brand-blue (#1D4ED8), --brand-blue-bright (#38BDF8),
  --brand-navy (#0F172A), --brand-bg (#F8FAFC), --brand-surface, --brand-border,
  --brand-text, --brand-text-muted. Legacy --color-* aliases re-point to the
  new tokens so any inline-styled component re-themes for free.
- Site-wide hex sweep migrates 2,769 hardcoded color literals across 144
  files from the old dark-broadcast palette to the new tokens (orange
  -> blue, dark-brown -> white surface / navy text, cream -> navy).
- Layout body class flipped from 'bb-neon' to 'bg-brand-bg text-brand-text'
  so the dark glow chrome no longer leaks through the new light theme.

src/app/admin/banners/BannerRows.tsx

@@ -54,7 +54,7 @@ function StatBlock({ label, b }: { label: string; b: StatBucket }) {
         <span className="font-semibold">{fmtNum(b.clicks)}</span>
         <span className="text-[#6b7280]"> clk</span>
         <span className="mx-1 text-[#374151]">·</span>
-        <span className="text-[#F0A623]">{pct(b.clicks, b.impressions)}</span>
+        <span className="text-[#1D4ED8]">{pct(b.clicks, b.impressions)}</span>
       </div>
     </div>
   );
@@ -140,7 +140,7 @@ export default function BannerRows({
                   <input
                     value={current.name}
                     onChange={(e) => field(b.id, "name", e.target.value)}
-                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#F0A623] focus:outline-none"
+                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#1D4ED8] focus:outline-none"
                   />
                 </label>
 
@@ -150,7 +150,7 @@ export default function BannerRows({
                     value={current.click_url || ""}
                     onChange={(e) => field(b.id, "click_url", e.target.value)}
                     placeholder="https://…"
-                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#F0A623] focus:outline-none"
+                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#1D4ED8] focus:outline-none"
                   />
                 </label>
 
@@ -160,7 +160,7 @@ export default function BannerRows({
                     type="date"
                     value={fmtDate(current.start_date)}
                     onChange={(e) => field(b.id, "start_date", e.target.value ? new Date(e.target.value).toISOString() : null)}
-                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#F0A623] focus:outline-none"
+                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#1D4ED8] focus:outline-none"
                   />
                 </label>
 
@@ -170,7 +170,7 @@ export default function BannerRows({
                     type="date"
                     value={fmtDate(current.end_date)}
                     onChange={(e) => field(b.id, "end_date", e.target.value ? new Date(e.target.value).toISOString() : null)}
-                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#F0A623] focus:outline-none"
+                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#1D4ED8] focus:outline-none"
                   />
                 </label>
 
@@ -179,7 +179,7 @@ export default function BannerRows({
                   <select
                     value={current.status}
                     onChange={(e) => field(b.id, "status", e.target.value)}
-                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#F0A623] focus:outline-none"
+                    className="rounded border border-[#1f2937] bg-[#070a10] p-2 text-[#e5e7eb] focus:border-[#1D4ED8] focus:outline-none"
                   >
                     <option value="active">active</option>
                     <option value="scheduled">scheduled</option>
@@ -210,7 +210,7 @@ export default function BannerRows({
                 <button
                   onClick={() => save(b.id)}
                   disabled={!dirty || pending}
-                  className="rounded bg-[#1d4ed8] px-3 py-1.5 text-sm font-medium text-white hover:bg-[#BA7517] disabled:opacity-40 disabled:cursor-not-allowed"
+                  className="rounded bg-[#1d4ed8] px-3 py-1.5 text-sm font-medium text-white hover:bg-[#1E3A8A] disabled:opacity-40 disabled:cursor-not-allowed"
                 >
                   Save changes
                 </button>
@@ -219,7 +219,7 @@ export default function BannerRows({
               </div>
               <Link
                 href={`/admin/banners/${b.id}/analytics`}
-                className="text-sm text-[#F0A623] hover:underline"
+                className="text-sm text-[#1D4ED8] hover:underline"
               >
                 View detailed analytics →
               </Link>