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/World Server/worldserver.cpp

@@ -100,7 +100,7 @@ CWorldServer::CWorldServer( string fn )
     PatList.nullpat = nullpat;
     CCSellData* nullsell = new CCSellData;
     nullsell->id = 0;
-    for(UINT i=0;i<50;i++)
+    for(UINT i=0;i<49;i++)
         nullsell->item[i] = 0;
     SellList.nullsell = nullsell ;
     for(UINT i=0;i<1000;i++)
@@ -228,7 +228,6 @@ CWorldServer::~CWorldServer( )
     delete SellList.nullsell;
     delete UseList.nulluse;
     delete MapList.nullzone;
-    delete [] GradeList;
     delete DB;
 }
 
@@ -608,7 +607,7 @@ bool CWorldServer::OnServerReady( )
         }
     	struct sockaddr_in ain;
     	ain.sin_family		= AF_INET;
-       	ain.sin_addr.s_addr	= inet_addr( Config.CharIP );
+       	ain.sin_addr.s_addr	= rose_inet_addr( Config.CharIP );
     	ain.sin_port = htons( Config.CharPort );
     	if ( connect( csock, (SOCKADDR*) &ain, sizeof(ain) ) == SOCKET_ERROR )
             Log( MSG_WARNING, "Could not access charserver" );