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/Char Server/charpackets.cpp

@@ -405,7 +405,7 @@ bool CCharServer::pakWSReady ( CCharClient* thisclient, CPacket* P )
 	}
 	struct sockaddr_in ain;
 	ain.sin_family		= AF_INET;
-   	ain.sin_addr.s_addr	= inet_addr(newchannel->ip);
+   	ain.sin_addr.s_addr	= rose_inet_addr(newchannel->ip);
 	ain.sin_port		= htons( newchannel->port );
 	memset(&(ain.sin_zero), '\0', 8);
 	if ( connect( newchannel->sock , (SOCKADDR*) &ain, sizeof(ain) ) == SOCKET_ERROR) 

Src/Char Server/charserver.h

@@ -6,7 +6,7 @@
 #define __ROSE_SERVERS__
 
 #include <time.h>
-#include "../common/sockets.h"
+#include "../Common/sockets.h"
 #include "datatypes.h"
 #define ClearItem(i) { i.durability=0; i.itemnum=0; i.itemtype=0; i.lifespan=0; i.refine=0; }
 using namespace std;

Src/Char Server/clan.cpp

@@ -18,7 +18,7 @@
 
     depeloped with Main erose/hrose source server + some change from the original eich source        
 */
-#include "CharServer.h"
+#include "charserver.h"
 
 // Send Clan information
 bool CCharServer::SendClanInfo (CCharClient* thisclient)

Src/Char Server/datatypes.h

@@ -4,7 +4,7 @@
 */
 #ifndef __ROSE_DATATYPES__
 #define __ROSE_DATATYPES__
-#include "../common/sockets.h"
+#include "../Common/sockets.h"
 // List of clan members
 struct CClanMembers
 {

Src/Char Server/signal.cpp

@@ -38,7 +38,9 @@ void StartSignal( )
     signal( SIGFPE, HandleSignal );        
     signal( SIGSEGV, HandleSignal );
     signal( SIGTERM, HandleSignal );        
+    #ifdef _WIN32
     signal( SIGBREAK, HandleSignal );        
+    #endif
     signal( SIGABRT, HandleSignal );          
 }
 
@@ -49,7 +51,9 @@ void StopSignal( )
     signal( SIGFPE, 0 );        
     signal( SIGSEGV, 0 );
     signal( SIGTERM, 0 );        
+    #ifdef _WIN32
     signal( SIGBREAK, 0 );        
+    #endif
     signal( SIGABRT, 0 );          
 }