Port server to Linux and add Docker Compose deployment

Rebuilds (not Wine) the login/char/world servers natively for Linux via
CMake, and ships a single Docker image plus docker-compose stack (MariaDB +
3 servers) with all settings configurable via .env.

Linux portability:
- Src/Common/compat.h shims MSVC-only CRT calls (fopen_s, _strdup,
  strncpy_s, sprintf_s, SYSTEMTIME/GetLocalTime, WSAGetLastError, __cdecl)
  and adds a case-insensitive/backslash-tolerant path resolver for the
  Windows-authored STB/AIP data file paths.
- Fixed case-sensitive header includes and filenames (charserver.h vs
  CharServer.h, worldserver.h vs WorldServer.h, ../common vs ../Common).
- rose_inet_addr() resolves hostnames (not just literal IPs) for the
  server-to-server links, so docker-compose service names work.

Fixed three real bugs that only crashed on 64-bit Linux (silently tolerated
on 32-bit Windows):
- CIntStb::LoadSTB had an inverted fopen success/failure check, so STB game
  data (zones, items, etc.) was never actually loaded.
- GenerateCryptTables allocated its pointer table with sizeof(unsigned)
  instead of sizeof(unsigned*) -- a 1x vs 2x-size heap overflow on 64-bit.
- Crypto bit-twiddling relies throughout on signed-overflow-as-wraparound,
  which is UB in C++; GCC's -O3 exploited it and miscompiled
  GenerateCryptTables (Release-only crash). Fixed via -fwrapv.
Plus smaller fixes: off-by-one array bounds (inventory/storage/sell data),
SO_REUSEADDR on server sockets (containers restarting in the same netns hit
TIME_WAIT otherwise), and a va_list reused across multiple vprintf/vfprintf
calls in Log() that garbled every formatted log line on the Linux ABI.

Docker:
- CMakeLists.txt builds all three servers + shared Common code.
- Dockerfile: multi-stage build, one runtime image for all three servers,
  server role selected via `command: [login|char|world]`.
- docker-compose.yml: MariaDB (auto-imports database sql files/ on first
  run) + login/char/world (single channel), config rendered from
  docker/conf/*.conf.tmpl via envsubst at container start.
- .env.example documents every setting (ports, server names, rates,
  inter-server passwords, PUBLIC_HOST for internet-facing deployments).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Src/Common/SocketServer.cpp

@@ -45,7 +45,6 @@ CServerSocket::~CServerSocket( )
 bool CServerSocket::StartServer( )
 {
 	//struct sockaddr_in ain;
-    int test;
 	sock = socket( AF_INET, SOCK_STREAM, 0 );
 	if (sock == INVALID_SOCKET)
     {
@@ -59,16 +58,16 @@ bool CServerSocket::StartServer( )
         Log(MSG_ERROR, "setsockopt:SO_KEEPALIVE" );
     }
     setsockopt(sock, IPPROTO_TCP,TCP_NODELAY,(const char*)&optval,sizeof(optval));
+    // Lets a restarted server (docker restart, crash-loop) rebind immediately
+    // instead of failing on a TIME_WAIT socket from its own previous run.
+    setsockopt(sock, SOL_SOCKET,SO_REUSEADDR,(const char*)&optval,sizeof(optval));
 	ain.sin_family		= AF_INET;
 	ain.sin_addr.s_addr	= INADDR_ANY;
 	ain.sin_port		= htons( port );
 	memset(&(ain.sin_zero), '\0', 8);
 	if ( bind( sock, (const sockaddr*)&ain, sizeof( struct sockaddr ) ) )
     {
-
 		Log( MSG_FATALERROR, "Could not bind socket" );
-		std::cout <<"socket " << sock << std::endl;
-		std::cin >> test;
 		closesocket( sock );
 		sock = INVALID_SOCKET;
 		return false;
@@ -94,6 +93,7 @@ bool CServerSocket::StartServer( )
             Log(MSG_ERROR, "setsockopt:SO_KEEPALIVE" );
         }
         setsockopt(sckISC, IPPROTO_TCP,TCP_NODELAY,(const char*)&optval,sizeof(optval));
+        setsockopt(sckISC, SOL_SOCKET,SO_REUSEADDR,(const char*)&optval,sizeof(optval));
 	    sain.sin_family		= AF_INET;
 	    sain.sin_addr.s_addr	= INADDR_ANY;
 	    sain.sin_port		= htons( Config.CharsPort);//29110 );
@@ -125,7 +125,7 @@ bool CServerSocket::StartServer( )
     		return false;
     	}
     	aina.sin_family		= AF_INET;
-    	aina.sin_addr.s_addr	= inet_addr(Config.CharIP);//( "127.0.0.1" );
+    	aina.sin_addr.s_addr	= rose_inet_addr(Config.CharIP);//( "127.0.0.1" );
     	aina.sin_port		= htons( Config.CharPort);//29110 );
     	if ( connect( sckISC, (const sockaddr*)&aina, sizeof( aina ) ) == SOCKET_ERROR ) {
     		Log( MSG_ERROR, "Could not connect to ISC (WSK2 ERROR: %i)", WSAGetLastError( ) );
@@ -146,6 +146,7 @@ bool CServerSocket::StartServer( )
             Log(MSG_ERROR, "setsockopt:SO_KEEPALIVE" );
         }
         setsockopt(sckISCII, IPPROTO_TCP,TCP_NODELAY,(const char*)&optval,sizeof(optval));
+        setsockopt(sckISCII, SOL_SOCKET,SO_REUSEADDR,(const char*)&optval,sizeof(optval));
 	    sain.sin_family		= AF_INET;
 	    sain.sin_addr.s_addr	= INADDR_ANY;
 	    sain.sin_port		= htons( Config.WorldsPort );//29210 );