Fix build: embedded Tor linking, UPnP guard, LogPrintf, socket types

- CMakeLists: add --start-group linking for libtor.a and its deps
  (libevent, openssl, zlib, lzma, zstd) with --allow-multiple-definition
  for mixed static/dynamic OpenSSL on Windows
- CMakeLists: define USE_UPNP=0 only when USE_UPNP is off (not via
  #ifdef-incompatible define)
- net.cpp: guard USE_UPNP reference with #ifdef for builds without UPnP
- rpcwallet.cpp: replace nonexistent LogPrintf with printf
- tor_embedded.cpp: fix SOCKET type mismatch on Windows (SOCKET vs int)
- .gitignore: add testnet-sync/ directory

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

.gitignore

@@ -52,6 +52,7 @@ blocks/
 .*.json
 temp/
 tmp/
+testnet-sync/
 
 # Private/Local
 triangles.conf

src/CMakeLists.txt

@@ -148,10 +148,23 @@ if(USE_TOR_EMBEDDED)
     target_compile_definitions(triangles_common PUBLIC ENABLE_TOR_EMBEDDED)
     target_include_directories(triangles_common PUBLIC "${TOR_SOURCE_ROOT}/src/feature/api")
     target_link_directories(triangles_common PUBLIC "${TOR_SOURCE_ROOT}")
-    if(UNIX)
-        target_link_libraries(triangles_common PUBLIC -Wl,--start-group -ltor -Wl,--end-group lzma zstd)
-    else()
-        target_link_libraries(triangles_common PUBLIC tor lzma zstd)
+    # libtor.a has circular deps with libevent/openssl/zlib
+    # OpenSSL and zlib already linked via imported targets above, so only add
+    # libevent and compression libs that libtor needs but aren't yet linked.
+    # --start-group / --end-group resolves circular references between libtor
+    # and its dependencies.
+    # Use --allow-multiple-definition because libtor.a may pull in static
+    # OpenSSL objects that duplicate the DLL import lib already linked above.
+    target_link_libraries(triangles_common PUBLIC
+        -Wl,--allow-multiple-definition
+        -Wl,--start-group
+        -ltor
+        -levent -levent_core -levent_extra -levent_openssl
+        -lssl -lcrypto -lz -llzma -lzstd
+        -Wl,--end-group
+    )
+    if(WIN32)
+        target_link_libraries(triangles_common PUBLIC iphlpapi shlwapi crypt32)
     endif()
 endif()
 

src/tor/tor_embedded.cpp

@@ -165,8 +165,13 @@ bool CTorEmbedded::Start(int socks, int hsPort, bool enableHiddenService)
         }
 
         // Quick port check
+#ifdef WIN32
+        SOCKET sock = socket(AF_INET, SOCK_STREAM, 0);
+        if (sock != INVALID_SOCKET) {
+#else
         int sock = socket(AF_INET, SOCK_STREAM, 0);
         if (sock >= 0) {
+#endif
             struct sockaddr_in addr;
             memset(&addr, 0, sizeof(addr));
             addr.sin_family = AF_INET;