Polish pass 11 — color tokens, text size consistency, overlay fix

- V4VHistory: text-amber-400 → text-zap on sats total
- V4VSettings: size status dot to text-[8px] for visual consistency
- Feed: last-updated timestamp text-[10px] → text-[11px] (matches siblings)
- NoteContent: +N overlay bg-black/50 → bg-bg/60, text-white → text-text,
  text-lg → text-[14px] (consistent with rest of file)
- RelaysView: last-checked timestamp text-[9px] → text-[10px]

src/components/v4v/V4VHistory.tsx

@@ -22,7 +22,7 @@ function HistoryRow({ entry }: { entry: V4VHistoryEntry }) {
             <div className="text-[10px] text-text-dim truncate">{entry.showTitle}</div>
           </div>
           <div className="shrink-0 text-right ml-3">
-            <div className="text-[12px] text-amber-400 font-medium">{totalSats} sats</div>
+            <div className="text-[12px] text-zap font-medium">{totalSats} sats</div>
             <div className="text-[9px] text-text-dim">{formatDate(entry.timestamp)}</div>
           </div>
         </div>

src/components/v4v/V4VSettings.tsx

@@ -46,7 +46,7 @@ export function V4VSettings() {
         </p>
         {autoEnabled && (
           <div className="mt-2 text-[10px] text-success flex items-center gap-1">
-            <span>&#9679;</span> Auto-streaming is active
+            <span className="text-[8px]">&#9679;</span> Auto-streaming is active
           </div>
         )}
       </section>