v5.5.4: Add hardcoded seed nodes for automatic network mesh

- Hardcoded DNS3 (74.208.167.19), DNS2 (194.233.88.206), and Contabo (100.98.123.59) as fixed seeds
- Nodes will automatically connect to these on first run
- No manual addnode configuration needed
- Full mesh network connectivity built into the code

src/clientversion.h

@@ -8,7 +8,7 @@
 // These need to be macros, as version.cpp's and triangles-qt.rc's voodoo requires it
 #define CLIENT_VERSION_MAJOR       5
 #define CLIENT_VERSION_MINOR       5
-#define CLIENT_VERSION_REVISION    3
+#define CLIENT_VERSION_REVISION    4
 #define CLIENT_VERSION_BUILD       0
 
 // Converts the parameter X to a string after macro replacement on X has been performed.

src/net.cpp

@@ -1389,9 +1389,12 @@ void ThreadOnionSeed(void* parg)
 
 
 
-// Hardcoded seeds removed - peer discovery is now fully dynamic via HTTP seed list.
-// See: seeds.cryptographic-triangles.org
+// Hardcoded seed nodes - full network mesh
+// These nodes will be automatically connected to on first run
 unsigned int pnSeed[] = {
+    0x4ad0a713, // 74.208.167.19 (DNS3)
+    0xc2e958ce, // 194.233.88.206 (DNS2)
+    0x64627b3b, // 100.98.123.59 (Contabo seed server)
 };
 
 void DumpAddresses()

src/net_bootstrap.h

@@ -24,9 +24,12 @@ namespace NetBootstrap {
         NULL
     };
 
-    // Hardcoded seeds removed - peer discovery is now fully dynamic via HTTP seed list.
-    // See: seeds.cryptographic-triangles.org
+    // Hardcoded seed nodes - full network mesh
+    // These nodes will be automatically connected to on first run
     static const unsigned int pnSeed[] __attribute__((unused)) = {
+        0x4ad0a713, // 74.208.167.19 (DNS3)
+        0xc2e958ce, // 194.233.88.206 (DNS2)
+        0x64627b3b, // 100.98.123.59 (Contabo seed server)
     };
 
     // Network protocol compatibility settings