Refactor/repo hardening 01 (#462)

* BinaryProtocol: add optional padding control; BitchatPacket API for padded/unpadded bytes; BLEService: use unpadded encoding and remove ad-hoc unpadding on BLE writes

* BLEService: balance BLE padding — pad Noise handshake/encrypted frames; leave public/announce/leave unpadded; keep fragmentation consistent with chosen padding

* BLEService: replace Timer with DispatchSourceTimer on bleQueue; NostrTransport: cache placeholder NoiseEncryptionService to avoid reallocation

* Unify peerID validation: InputValidator handles 16-hex, 64-hex, or alnum-/_; NoiseSecurityValidator now delegates to InputValidator

* UI: use standard green for geohash toolbar badge and count (less bright in light mode)

* UI: standardize geohash sheet green to app standard (dark: system green, light: darker green) for buttons and checkmark

* Docs: align BinaryProtocol compression docs to zlib; Logs: reduce NostrTransport DELIVERED ack logs to debug to cut noise

* Tests: add InputValidator peerID coverage and BinaryProtocol padding round-trip/length tests

* Project: ensure Xcode project reflects new tests (references added)

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>

bitchat/Views/LocationChannelsSheet.swift

@@ -6,6 +6,7 @@ struct LocationChannelsSheet: View {
     @Binding var isPresented: Bool
     @ObservedObject private var manager = LocationChannelManager.shared
     @EnvironmentObject var viewModel: ChatViewModel
+    @Environment(\.colorScheme) var colorScheme
     @State private var customGeohash: String = ""
     @State private var customError: String? = nil
 
@@ -24,10 +25,10 @@ struct LocationChannelsSheet: View {
                         Button(action: { manager.enableLocationChannels() }) {
                             Text("get location and my geohashes")
                                 .font(.system(size: 12, design: .monospaced))
-                                .foregroundColor(Color.green)
+                                .foregroundColor(standardGreen)
                                 .frame(maxWidth: .infinity)
                                 .padding(.vertical, 6)
-                                .background(Color.green.opacity(0.12))
+                                .background(standardGreen.opacity(0.12))
                                 .cornerRadius(6)
                         }
                         .buttonStyle(.plain)
@@ -220,7 +221,7 @@ struct LocationChannelsSheet: View {
                 if isSelected {
                     Text("✔︎")
                         .font(.system(size: 16, design: .monospaced))
-                        .foregroundColor(.green)
+                        .foregroundColor(standardGreen)
                 }
             }
             .frame(maxWidth: .infinity, alignment: .leading)
@@ -274,4 +275,11 @@ struct LocationChannelsSheet: View {
     }
 }
 
+// MARK: - Standardized Colors
+extension LocationChannelsSheet {
+    private var standardGreen: Color {
+        (colorScheme == .dark) ? Color.green : Color(red: 0, green: 0.5, blue: 0)
+    }
+}
+
 #endif