feat: East Africa + Southern Africa pills with regional sub-sections

- East Africa pill: merges Uganda + east-africa tags; Uganda pinned first via sub-sections
- Southern Africa pill: covers SA, Namibia, Botswana, Zimbabwe, Zambia, Mozambique; SA/Namibia/Botswana prioritized
- StoryStore.setPill now resets lastSyncedAt to bypass 30s rate-limit on filter switch
- sectionSupplement background fetch populates sparse regional sections in All digest
- SignalFeedView digestContent: flat hero+scroll path for pills without subSections (was showing max 5)
- Theme: removed standalone Uganda pill, wired new sub-section layouts

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Jarvis/Views/Home/StoryRowView.swift

@@ -22,8 +22,8 @@ struct StoryRowView: View {
         HStack(spacing: 0) {
             SignalStripe(score: story.signalScore, muted: true)
             Text(story.headline)
-                .font(.system(size: 14, weight: .bold))
-                .foregroundStyle(Color(hex: "6A6A6A"))
+                .font(.system(size: 15, weight: .semibold, design: .default))
+                .foregroundStyle(Palette.secondaryText)
                 .lineLimit(1)
                 .padding(.leading, 14)
                 .padding(.vertical, 11)
@@ -34,7 +34,7 @@ struct StoryRowView: View {
                 .padding(.trailing, 16)
         }
         .frame(maxWidth: .infinity, alignment: .leading)
-        .background(Color.black)
+        .background(Palette.background)
         .overlay(alignment: .bottom) { Rectangle().fill(Palette.hairline).frame(height: 0.5) }
         .contentShape(Rectangle())
     }
@@ -49,54 +49,48 @@ struct StoryRowView: View {
             }
 
             VStack(alignment: .leading, spacing: 9) {
-                // Title (+ cached dot)
-                HStack(alignment: .top, spacing: 8) {
-                    Text(story.headline)
-                        .font(.system(size: 17, weight: .heavy))
-                        .foregroundStyle(Signal.titleColor(story.signalScore))
-                        .lineLimit(3)
-                        .fixedSize(horizontal: false, vertical: true)
+                Text(story.headline)
+                    .font(.system(size: 19, weight: .bold, design: .default))
+                    .foregroundStyle(Signal.titleColor(story.signalScore))
+                    .lineLimit(3)
+                    .fixedSize(horizontal: false, vertical: true)
 
-                    if isCached {
-                        CachedDot()
-                            .padding(.top, 6)
-                    }
-                }
-
-                // Summary preview — the gist, without opening the story.
                 if !story.summary.isEmpty {
                     Text(story.summary)
-                        .font(.system(size: 13, weight: .regular))
-                        .foregroundStyle(Color(hex: "8A8A8A"))
-                        .lineLimit(6)
-                        .lineSpacing(2)
+                        .font(.system(size: 15, weight: .regular, design: .default))
+                        .foregroundStyle(Palette.bodyText)
+                        .lineLimit(5)
+                        .lineSpacing(3)
                         .fixedSize(horizontal: false, vertical: true)
                 }
 
-                // Source chips
                 if !sourceNames.isEmpty {
                     SourceChips(names: sourceNames, total: story.sourceCount)
                 }
 
-                // Metadata
                 Text(metaLine)
                     .font(.system(size: 11, weight: .regular, design: .monospaced))
-                    .foregroundStyle(Color(hex: "666666"))
+                    .foregroundStyle(Palette.tertiaryText)
             }
             .padding(.leading, 14)
             .padding(.vertical, 16)
 
             Spacer(minLength: 12)
 
-            // Signal score column
-            Text("\(story.signalScore)")
-                .font(.system(size: 22, weight: .heavy, design: .monospaced))
-                .foregroundStyle(Signal.scoreColor(story.signalScore))
-                .padding(.trailing, 16)
-                .padding(.top, 16)
+            // Signal cluster: score + offline dot, compact and aligned
+            VStack(alignment: .trailing, spacing: 4) {
+                Text("\(story.signalScore)")
+                    .font(.system(size: 14, weight: .semibold, design: .monospaced))
+                    .foregroundStyle(Signal.scoreColor(story.signalScore))
+                if isCached {
+                    CachedDot(size: 6)
+                }
+            }
+            .padding(.trailing, 16)
+            .padding(.top, 18)
         }
         .frame(maxWidth: .infinity, alignment: .leading)
-        .background(Color.black)
+        .background(Palette.background)
         .overlay(alignment: .bottom) {
             Rectangle().fill(Palette.hairline).frame(height: 0.5)
         }
@@ -128,5 +122,5 @@ struct StoryRowView: View {
             )
         }
     }
-    .background(Color.black)
+    .background(Palette.background)
 }