Revert notes geohash selection back to block-level (precision 7); keep building level available but unused; update counter and sheet accordingly

bitchat/Views/ContentView.swift

@@ -469,15 +469,14 @@ struct ContentView: View {
                 guard (2...12).contains(gh.count), gh.allSatisfy({ allowed.contains($0) }) else { return }
                 func levelForLength(_ len: Int) -> GeohashChannelLevel {
                     switch len {
-                    case 0...2: return .region
-                    case 3...4: return .province
-                    case 5: return .city
-                    case 6: return .neighborhood
+                        case 0...2: return .region
+                        case 3...4: return .province
+                        case 5: return .city
+                        case 6: return .neighborhood
                     case 7: return .block
-                    case 8: return .building
-                    default: return .building
+                    default: return .block
+                        }
                     }
-                }
                 let level = levelForLength(gh.count)
                 let ch = GeohashChannel(level: level, geohash: gh)
                 // Do not mark teleported when opening a geohash that is in our regional set.
@@ -1181,7 +1180,7 @@ struct ContentView: View {
                         LocationChannelManager.shared.enableLocationChannels()
                         LocationChannelManager.shared.refreshChannels()
                         // If we already have a block geohash, pass it; otherwise wait in the sheet.
-                        notesGeohash = LocationChannelManager.shared.availableChannels.first(where: { $0.level == .building })?.geohash
+                        notesGeohash = LocationChannelManager.shared.availableChannels.first(where: { $0.level == .block })?.geohash
                         showLocationNotes = true
                     }) {
                         HStack(spacing: 4) {
@@ -1232,7 +1231,7 @@ struct ContentView: View {
         }
         .sheet(isPresented: $showLocationNotes) {
             Group {
-                if let gh = notesGeohash ?? LocationChannelManager.shared.availableChannels.first(where: { $0.level == .building })?.geohash {
+                if let gh = notesGeohash ?? LocationChannelManager.shared.availableChannels.first(where: { $0.level == .block })?.geohash {
                     LocationNotesView(geohash: gh)
                         .environmentObject(viewModel)
                 } else {
@@ -1266,8 +1265,8 @@ struct ContentView: View {
                     .background(backgroundColor)
                     .foregroundColor(textColor)
                     .onChange(of: locationManager.availableChannels) { channels in
-                        if notesGeohash == nil, let building = channels.first(where: { $0.level == .building }) {
-                            notesGeohash = building.geohash
+                        if notesGeohash == nil, let block = channels.first(where: { $0.level == .block }) {
+                            notesGeohash = block.geohash
                         }
                     }
                 }
@@ -1479,8 +1478,8 @@ extension ContentView {
     private func updateNotesCounterSubscription() {
         switch locationManager.selectedChannel {
         case .mesh:
-            if let building = LocationChannelManager.shared.availableChannels.first(where: { $0.level == .building })?.geohash {
-                LocationNotesCounter.shared.subscribe(geohash: building)
+            if let block = LocationChannelManager.shared.availableChannels.first(where: { $0.level == .block })?.geohash {
+                LocationNotesCounter.shared.subscribe(geohash: block)
             } else {
                 LocationNotesCounter.shared.cancel()
             }

bitchat/Views/LocationChannelsSheet.swift

@@ -381,8 +381,7 @@ struct LocationChannelsSheet: View {
         case 5: return .city
         case 6: return .neighborhood
         case 7: return .block
-        case 8: return .building
-        default: return .building
+        default: return .block
         }
     }
 }
@@ -463,8 +462,6 @@ extension LocationChannelsSheet {
         switch level {
         case .region:
             return ""
-        case .building:
-            return ""
         default:
             return "~"
         }

bitchat/Views/LocationNotesSheet.swift

@@ -13,7 +13,7 @@ struct LocationNotesSheet: View {
 
     var body: some View {
         Group {
-            if let gh = notesGeohash ?? locationManager.availableChannels.first(where: { $0.level == .building })?.geohash {
+            if let gh = notesGeohash ?? locationManager.availableChannels.first(where: { $0.level == .block })?.geohash {
                 // Found block geohash: show notes view
                 LocationNotesView(geohash: gh)
                     .environmentObject(viewModel)
@@ -55,8 +55,8 @@ struct LocationNotesSheet: View {
                     LocationChannelManager.shared.refreshChannels()
                 }
                 .onChange(of: locationManager.availableChannels) { channels in
-                    if notesGeohash == nil, let building = channels.first(where: { $0.level == .building }) {
-                        notesGeohash = building.geohash
+                    if notesGeohash == nil, let block = channels.first(where: { $0.level == .block }) {
+                        notesGeohash = block.geohash
                     }
                 }
             }