refactor/feature/fix: Major refactor of codebase

refactor(stdio): replace console/terminal command system with buffer-based stdio
- Introduced stdio.pas as the unified command I/O layer.
- All 31 command procedures across 15 files now receive stdin_buf,
  stdout_buf, and stderr_buf (POutBuf) instead of a single outbuf.
- vterminal.pas creates all three buffers per command invocation and
  displays both stdout and stderr.
- Deleted console.pas, terminal.pas, and 9 obsolete windowing programs
  (shell, splash, edit, memview, themer, netlog, vmlog, vmstate, udpcat).
- Migrated all registerCommand calls to stdio, rewrote vterminal
  processCommand to use stdio.findCommand, and added proper error
  routing to stderr for invalid params, bad paths, and system errors.

refactor(syslog): replace console logging with serial-backed syslog
- Introduced syslog.pas for kernel-level logging over serial/dev.
- Migrated all boot logging in kernel.pas from console.outputln/
  writestringln to syslog.logln/writestringln.
- Converted 19 fault handlers, hashmap, lists, scheduler, tracer, net,
  udp, and all driver init paths to use syslog.
- Rewrote BSOD in util.pas (50+ calls) from console to syslog.
- Removed CONSOLE_SLOW_REDRAW, TRGB565, TRGB565Pair, and HWND
  from system.pas.

fix(keyboard): add ring buffer and proper press/release cycling for LVGL input
- Replaced the single last_key/key_pressed slot in lvgl.pas with a
  16-entry ring buffer (kb_buf, kb_head, kb_tail) to prevent ISR
  overwrites when typing fast.
- Added a kb_pending_release flag so each keystroke gets a
  full PRESSED->RELEASED cycle before the next key is consumed —
  LVGL requires this pairing and was silently dropping intermediate
  keys when receiving consecutive PRESSED events without
  intervening releases.

feat(vterminal): use Hack monospace font for terminal output
- Added Hack Regular 14px (hack_14.c) as a custom LVGL font.
- Removed the .static_bitmap field from the generated font file
  (not present in LVGL 9.2 lv_font_t struct).
- Declared the hack_14 external symbol in lvgl.pas and switched
  vterminal's text label from lv_font_montserrat_14 to hack_14
  for proper monospace terminal rendering.

src/driver/storage/AHCI.pas

@@ -27,7 +27,7 @@ uses
     drivertypes,
     drivermanagement,
     lmemorymanager,
-    console,
+    syslog,
     vmemorymanager;
 
 type
@@ -250,7 +250,7 @@ procedure init();
 var
     devID : TDeviceIdentifier;
 begin
-    console.writestringln('AHCI: Registering driver');
+    syslog.writestringln('AHCI: Registering driver');
     devID.bus:= biPCI;
     devID.id0:= idANY;
     devID.id1:= $00000001;
@@ -263,7 +263,7 @@ end;
 
 procedure load(ptr : void);
 begin
-    console.writestringln('AHCI: initilizing a new controller');
+    syslog.writestringln('AHCI: initilizing a new controller');
     ahciControllers[ahciControllerCount] := ptr;
     hba[ahciControllerCount] := PPCI_Device(ptr)^.address5;
     new_page_at_address(hba[ahciControllerCount]);

src/driver/storage/ATA_ISR.pas

@@ -23,7 +23,7 @@ interface
 
 uses
     util,
-    console,
+    syslog,
     isr_types,
     isrmanager,
     IDT;
@@ -46,7 +46,7 @@ begin
     for i:=0 to MAX_HOOKS-1 do begin
         if uint32(Hooks[i]) <> 0 then Hooks[i](void($00000000));
     end;
-    console.writestringln('Disk Operation Complete');
+    syslog.writestringln('Disk Operation Complete');
 end;
 
 procedure register();

src/driver/storage/IDE.pas

@@ -14,8 +14,7 @@ interface
 uses
     util,
     drivertypes,
-    console,
-    terminal,
+    syslog,
     drivermanagement,
     vmemorymanager,
     lmemorymanager,
@@ -190,8 +189,7 @@ begin
         status := port_read(ATA_REG_COMMAND);
 
         if(status and ATA_SR_ERR) = ATA_SR_ERR then begin
-            console.writestringln('[IDE] (IDENTIFY_DEVICE) DRIVE ERROR!');
-            console.redrawWindows();
+            syslog.writestringln('[IDE] (IDENTIFY_DEVICE) DRIVE ERROR!');
             is_ready := false;
             break;
         end;
@@ -248,7 +246,7 @@ var
     devID : TDeviceIdentifier;
 begin
     push_trace('ide.init');
-    console.writestringln('[IDE] (INIT) BEGIN');
+    syslog.writestringln('[IDE] (INIT) BEGIN');
     devID.bus:= biPCI;
     devID.id0:= idANY;
     devID.id1:= $00000001;
@@ -257,7 +255,7 @@ begin
     devID.id4:= idANY;
     devID.ex:= nil;
     drivermanagement.register_driver('IDE ATA Driver', @devID, @load);
-    console.writestringln('[IDE] (INIT) END');
+    syslog.writestringln('[IDE] (INIT) END');
 end;
 
 function load(ptr : void) : boolean;
@@ -269,10 +267,10 @@ var
     i : uint8;
 begin
     push_trace('ide.load');
-    console.writestringln('[IDE] (LOAD) BEGIN');
+    syslog.writestringln('[IDE] (LOAD) BEGIN');
     controller := PPCI_Device(ptr);
 
-    console.writestringln('[IDE] (INIT) CHECK FLOATING BUS');
+    syslog.writestringln('[IDE] (INIT) CHECK FLOATING BUS');
     //check if bus is floating and identify device
     if inb($1F7) <> $FF then begin
         //outb($3F6, inb($3f6) or (1 shl 1)); // disable interrupts
@@ -284,7 +282,7 @@ begin
         masterDevice.maxSectorCount:= (IDEDevices[0].info[60] or (IDEDevices[0].info[61] shl 16) ); //LBA28 SATA
         
         if IDEDevices[0].info[1] = 0 then begin
-            console.writestringln('[IDE] (INIT) ERROR: DEVICE IDENT FAILED!');
+            syslog.writestringln('[IDE] (INIT) ERROR: DEVICE IDENT FAILED!');
             exit;
         end;
 
@@ -320,7 +318,7 @@ begin
     // writePIO28(0, 5, buffer);
     // kfree(puint32(buffer));
 
-    console.writestringln('[IDE] (LOAD) END');
+    syslog.writestringln('[IDE] (LOAD) END');
 end;
 
 procedure readPIO28(drive : uint8; LBA : uint32; buffer : puint8);
@@ -331,7 +329,7 @@ var
     data: uint16;
 begin 
        if not validate_28bit_address(LBA) then begin
-        console.writestringln('IDE (writePIO28) ERROR: Invalid LBA!');
+        syslog.writestringln('IDE (writePIO28) ERROR: Invalid LBA!');
     end;
 
     //Add last 4 bits of LBA to device port
@@ -378,11 +376,11 @@ var
 begin 
     push_trace('IDE.WritePIO28');
     if not validate_28bit_address(LBA) then begin
-        console.writestringln('IDE (writePIO28) ERROR: Invalid LBA!');
+        syslog.writestringln('IDE (writePIO28) ERROR: Invalid LBA!');
     end;
 
-    console.writeintln(uint32(drive));
-    console.writeintln(LBA);
+    syslog.writeintln(uint32(drive));
+    syslog.writeintln(LBA);
 
     //Add last 4 bits of LBA to device port
     if IDEDevices[drive].isMaster then begin

src/driver/storage/asfs.pas

@@ -22,9 +22,8 @@ unit asfs;
 interface
 
 uses
-    console,
     storagemanagement,
-    util, terminal,
+    util,
     lmemorymanager,
     strings,
     lists,

src/driver/storage/fat32.pas

@@ -9,9 +9,9 @@ unit FAT32;
 interface
 
 uses
-    console,
+    syslog,
     storagemanagement,
-    util, terminal,
+    util,
     lmemorymanager,
     strings,
     lists,
@@ -110,7 +110,7 @@ end;
 
 function load(ptr : void) : boolean;
 begin
-    console.outputln('FAT32', 'LOADED.')
+    syslog.logln('FAT32', 'LOADED.')
 end;
 
 function cleanString(str : pchar; status : puint32) : byteArray8;
@@ -624,10 +624,10 @@ begin
 
         writeFat(volume, startcluster + clusterDifference, $FFFFFFF8, bootRecord);
         //setup fat chain 
-        console.writestringWND('clust diff: ', getTerminalHWND());
-        console.writeintlnWND(clusterDifference, getTerminalHWND());
-        console.writestringWND('startclust: ', getTerminalHWND());
-        console.writeintlnWND(startcluster, getTerminalHWND());
+        syslog.writestring('clust diff: ');
+        syslog.writeintln(clusterDifference);
+        syslog.writestring('startclust: ');
+        syslog.writeintln(startcluster);
     end;
 
     push_trace('writefile.2');
@@ -635,7 +635,7 @@ begin
     iterations:= (bytecount div bootRecord^.sectorSize) div bootRecord^.spc; //no of clusters
 
     for i:=0 to iterations do begin
-        console.writestringlnWND('writting to file', getTerminalHWND());
+        syslog.writestringln('writting to file');
         dataPosition:= i * uint32(bootRecord^.sectorsize * 4); //needs to be bytes / 4
         bufferPointer:= @buffer[dataPosition div 4]; //todo change to puint8
         volume^.device^.writecallback(volume^.device, dataStart + (startCluster * bootRecord^.spc) + (i * 4), 1, bufferPointer); //i * 4 needs to be changed, TODO fix fucking IDE driver, it suks
@@ -778,9 +778,9 @@ begin //maybe increase buffer size by one?
     // zeroBuffer:= puint32(kalloc( disk^.sectorSize * 4 ));
     // memset(uint32(zeroBuffer), 0, disk^.sectorSize * 4);
 
-    // console.writeintlnWND(disk^.sectorsize, getTerminalHWND());
-    // console.writehexlnWND(zeroBuffer[(disk^.sectorSize) - 1], getTerminalHWND());
-    // console.writehexlnWND(uint32(zeroBuffer), getTerminalHWND());
+    // syslog.writeintln(disk^.sectorsize);
+    // syslog.writehexln(zeroBuffer[(disk^.sectorSize) - 1]);
+    // syslog.writehexln(uint32(zeroBuffer));
     // console.redrawWindows();
 
     // while true do begin
@@ -826,12 +826,12 @@ begin //maybe increase buffer size by one?
     bootRecord^.identString     := fatArray;
 
 
-    console.writestringWND('spc', getTerminalHWND());
-    console.writeintlnWND(config^, getTerminalHWND());
-    console.writestringWND('sectors', getTerminalHWND());
-    console.writeintlnWND(sectors, getTerminalHWND());
-    console.writestringWND('sectorsize', getTerminalHWND());
-    console.writeintlnWND(disk^.sectorsize, getTerminalHWND());
+    syslog.writestring('spc');
+    syslog.writeintln(config^);
+    syslog.writestring('sectors');
+    syslog.writeintln(sectors);
+    syslog.writestring('sectorsize');
+    syslog.writeintln(disk^.sectorsize);
 
     disk^.writecallback(disk, start + 1, 1, puint32(buffer));
 
@@ -887,8 +887,7 @@ var
     dirs : PLinkedListBase;
 begin
     push_trace('fat32.detectVolumes()');
-    console.writeintln(2);
-    redrawWindows();
+    syslog.writeintln(2);
 
     volume:= PStorage_volume(kalloc(sizeof(TStorage_Volume)));
     //check first address for MBR
@@ -897,11 +896,10 @@ begin
     memset(uint32(buffer), 0, 512);
     disk^.readcallback(disk, 2, 1, buffer);
 
-        console.writeintln(3);
-    redrawWindows();
+        syslog.writeintln(3);
 
     if (puint32(buffer)[127] = $55AA) and (PBootRecord(buffer)^.bsignature = $29) then begin //TODO partition table
-        console.writestringln('FAT32: volume found!');
+        syslog.writestringln('FAT32: volume found!');
         volume^.device:= disk;
         volume^.sectorStart:= 1;
         volume^.sectorSize:= PBootRecord(buffer)^.sectorSize;

src/driver/storage/partitiontable.pas

@@ -13,9 +13,8 @@ unit partitontable;
 interface
 
 uses
-    console,
     storagemanagement,
-    util, terminal,
+    util,
     lmemorymanager,
     strings,
     lists,

src/driver/storage/storagemanagement.pas

@@ -24,8 +24,7 @@ interface
 uses
     util,
     drivertypes,
-    console,
-    terminal,
+    stdio,
     drivermanagement,
     lmemorymanager,
     strings,
@@ -131,39 +130,39 @@ begin
 end;
 
 { Disk subcommand for listing drives }
-procedure ls_command(params : PParamList);
+procedure ls_command(params : PParamList; stdin_buf, stdout_buf, stderr_buf : POutBuf);
 var 
     i : uint16;
 begin
     push_trace('storagemanagment.ls_command');
     //if no storage device print none found
     if LL_Size(storageDevices) < 1 then begin
-        console.writestringlnWnd('No storage devices found.', getTerminalHWND());
+        stdio.bufWriteStrLn(stdout_buf, 'No storage devices found.');
         exit;
     end;
 
     //print number of storage devices
-    console.writeintwnd(LL_Size(storageDevices), getTerminalHWND());
-    console.writestringlnWnd(' devices found', getTerminalHWND());
+    stdio.bufWriteInt(stdout_buf, LL_Size(storageDevices));
+    stdio.bufWriteStrLn(stdout_buf, ' devices found');
 
     for i:=0 to LL_Size(storageDevices)-1 do begin
 
         //print device id and type
-        console.writeintwnd(i, getTerminalHWND());
-        console.writestringwnd(' - Device type: ', getTerminalHWND());
-        console.writestringwnd(controller_type_2_string(PStorage_Device(LL_Get(storageDevices, i))^.controller), getTerminalHWND());
-        console.writestringwnd(', ', getTerminalHWND());
+        stdio.bufWriteInt(stdout_buf, i);
+        stdio.bufWriteStr(stdout_buf, ' - Device type: ');
+        stdio.bufWriteStr(stdout_buf, controller_type_2_string(PStorage_Device(LL_Get(storageDevices, i))^.controller));
+        stdio.bufWriteStr(stdout_buf, ', ');
 
         //print device capcity
-        console.writestringwnd(' Capacity: ', getTerminalHWND());
-        console.writeintwnd((( PStorage_Device(LL_Get(storageDevices, i))^.maxSectorCount * PStorage_Device(LL_Get(storageDevices, i))^.sectorSize) DIV 1024) DIV 1024, getTerminalHWND());
-        console.writestringlnWnd('MB', getTerminalHWND());
+        stdio.bufWriteStr(stdout_buf, ' Capacity: ');
+        stdio.bufWriteInt(stdout_buf, (( PStorage_Device(LL_Get(storageDevices, i))^.maxSectorCount * PStorage_Device(LL_Get(storageDevices, i))^.sectorSize) DIV 1024) DIV 1024);
+        stdio.bufWriteStrLn(stdout_buf, 'MB');
     end;
 
 end;
 
 { Disk subcommand for formatting drives }
-procedure format_command(params : PParamList);
+procedure format_command(params : PParamList; stdin_buf, stdout_buf, stderr_buf : POutBuf);
 var
     driveIndex : uint16;
     drive : PStorage_Device;
@@ -182,15 +181,15 @@ begin
     //todo change b4 adding in aniother filesytem
     PFilesystem(LL_Get(filesystems, 0))^.createCallback(drive, drive^.maxSectorCount-1, 1, spc); 
 
-    writestringWnd('Drive ', getTerminalHWND);
-    writeintWnd(driveIndex, getTerminalHWND);
-    writestringlnWnd(' formatted.', getTerminalHWND);
+    stdio.bufWriteStr(stdout_buf, 'Drive ');
+    stdio.bufWriteInt(stdout_buf, driveIndex);
+    stdio.bufWriteStrLn(stdout_buf, ' formatted.');
     
 end;
 
 
 { Command for managing and getting information from disks. }
-procedure disk_command(params : PParamList);
+procedure disk_command(params : PParamList; stdin_buf, stdout_buf, stderr_buf : POutBuf);
 var
     i : uint16;
     drive : uint16;
@@ -200,7 +199,7 @@ begin
 
     //check if params wehre supplied
     if paramCount(params) = 0 then begin
-        writestringlnWnd('Incorrect number of params.', getTerminalHWND);
+        stdio.bufWriteStrLn(stderr_buf, 'Incorrect number of params.');
         exit;
     end;
     
@@ -208,13 +207,13 @@ begin
 
     //ls for listing storage devices
     if stringEquals(subcmd, 'ls') then begin
-        ls_command(params);
+        ls_command(params, stdin_buf, stdout_buf, stderr_buf);
         exit;
     end;
 
     //format command for clearing a disk and make a new volume
     if stringEquals(subcmd, 'format') then begin
-        format_command(params);
+        format_command(params, stdin_buf, stdout_buf, stderr_buf);
     end;
 
     //lsfs command for listing filesystems
@@ -232,7 +231,7 @@ begin
     setworkingdirectory('.');
     storageDevices:= ll_new(sizeof(TStorage_Device));
     fileSystems:= ll_New(sizeof(TFilesystem));
-    terminal.registerCommand('DISK', @disk_command, 'Disk utility');
+    stdio.registerCommand('DISK', @disk_command, 'Disk utility');
 
     pop_trace();
 end; 

src/driver/storage/vfs.pas

@@ -22,7 +22,7 @@ unit vfs;
 interface
 
 uses
-    hashmap, strings, lmemorymanager, lists, tracer, console;
+    hashmap, strings, lmemorymanager, lists, tracer;
 
 type
     TOpenMode       = (omReadOnly, omWriteOnly, omReadWrite);
@@ -115,7 +115,7 @@ function registerDevice(DeviceHandle : uint32; DeviceName : PChar; CBMakeDirecto
 implementation
 
 uses
-    terminal;
+    stdio;
 
 { Internal Functions }
 
@@ -610,7 +610,7 @@ end;
 
 { Terminal Commands }
 
-procedure VFS_COMMAND_PUSHD(params : PParamList);
+procedure VFS_COMMAND_PUSHD(params : PParamList; stdin_buf, stdout_buf, stderr_buf : POutBuf);
 var
     Output : pchar;
     WD     : pchar;
@@ -619,11 +619,11 @@ begin
     WD:= StringCopy(CurrentDirectory);
     STRLL_Add(PushPopDirectory, WD);
     Output:= StringConcat(WD, ' saved to stack.');
-    WritestringlnWND(Output, getTerminalHWND);
+    stdio.bufWriteStrLn(stdout_buf, Output);
     kfree(void(Output));
 end;
 
-procedure VFS_COMMAND_POPD(params : PParamList);
+procedure VFS_COMMAND_POPD(params : PParamList; stdin_buf, stdout_buf, stderr_buf : POutBuf);
 var
     Output : pchar;
     WD     : pchar;
@@ -633,26 +633,25 @@ begin
         WD:= STRLL_Get(PushPopDirectory, STRLL_Size(PushPopDirectory)-1);
         if changeDirectory(WD) = pvDirectory then begin
             Output:= StringConcat(WD, ' popped from the stack.');
-            WritestringlnWND(Output, getTerminalHWND);
+            stdio.bufWriteStrLn(stdout_buf, Output);
             kfree(void(Output));
         end else begin
             Output:= StringConcat(WD, ' popped, but was invalid!');
-            WritestringlnWND(Output, getTerminalHWND);
+            stdio.bufWriteStrLn(stderr_buf, Output);
             kfree(void(Output));
         end;
         STRLL_Delete(PushPopDirectory, STRLL_Size(PushPopDirectory)-1);
     end else begin
-        WritestringlnWND('No working directory in the stack!', getTerminalHWND);
+        stdio.bufWriteStrLn(stderr_buf, 'No working directory in the stack!');
     end;
 end;
 
-procedure VFS_COMMAND_LS(params : PParamList);
+procedure VFS_COMMAND_LS(params : PParamList; stdin_buf, stdout_buf, stderr_buf : POutBuf);
 var
     Map  : PHashMap;
     Item : PHashItem;
     obj  : PVFSObject;
     i    : uint32;
-    col  : uint32;
 
 begin
     tracer.push_trace('vfs.VFS_COMMAND_LS.enter');
@@ -662,28 +661,18 @@ begin
             Item:= Map^.Table[i];
             while Item <> nil do begin
                 obj:= PVFSObject(Item^.Data);
-                console.writestringWND(' ', getTerminalHWND);
-                col:= console.combinecolors($FFFF, $0000);
-                case obj^.ObjectType of
-                    otVDIRECTORY : col:= console.combinecolors($1587, $0000);
-                    otDRIVE      : col:= console.combinecolors($F000, $0000);
-                    otDEVICE     : col:= console.combinecolors($FFFF, $F000);
-                    otVFILE      : col:= console.combinecolors($FFFF, $C018);
-                    otMOUNT      : col:= console.combinecolors($0000, $2638);
-                    otFILE       : col:= console.combinecolors($FFFF, $0000);
-                    otDIRECTORY  : col:= console.combinecolors($547F, $0000);
-                end;
-                WritestringlnExWND(Item^.Key, col, getTerminalHWND);
+                stdio.bufWriteStr(stdout_buf, ' ');
+                stdio.bufWriteStrLn(stdout_buf, Item^.Key);
                 Item:= Item^.Next;
             end;
         end;
     end else begin
-        writestringlnWND('An internal error occured!', getTerminalHWND);
+        stdio.bufWriteStrLn(stderr_buf, 'An internal error occured!');
     end;
     tracer.push_trace('vfs.VFS_COMMAND_LS.exit');
 end;
 
-procedure VFS_COMMAND_CD(params : PParamList);
+procedure VFS_COMMAND_CD(params : PParamList; stdin_buf, stdout_buf, stderr_buf : POutBuf);
 var
     Path : pchar;
     Temp1, Temp2 : pchar;
@@ -709,14 +698,14 @@ begin
         Result:= changeDirectory(Path);
         case Result of
             pvInvalid:begin
-                writestringWND('"', getTerminalHWND);
-                writestringWND(Path, getTerminalHWND);
-                writestringlnWND('" is not a valid path.', getTerminalHWND);
+                stdio.bufWriteStr(stderr_buf, '"');
+                stdio.bufWriteStr(stderr_buf, Path);
+                stdio.bufWriteStrLn(stderr_buf, '" is not a valid path.');
             end;
             pvFile:begin
-                writestringWND('"', getTerminalHWND);
-                writestringWND(Path, getTerminalHWND);
-                writestringlnWND('" is not a directory.', getTerminalHWND);
+                stdio.bufWriteStr(stderr_buf, '"');
+                stdio.bufWriteStr(stderr_buf, Path);
+                stdio.bufWriteStrLn(stderr_buf, '" is not a directory.');
             end;
         end;
         kfree(void(Path));
@@ -758,10 +747,10 @@ begin
     //while true do begin end;
 
     { Register Terminal Commands }
-    terminal.registerCommand('LS',      @VFS_COMMAND_LS,    'List directory contents.');
-    terminal.registerCommand('CD',      @VFS_COMMAND_CD,    'Set working directory.');
-    terminal.registerCommand('PUSHD',   @VFS_COMMAND_PUSHD, 'Push the working directory.');
-    terminal.registerCommand('POPD',    @VFS_COMMAND_POPD,  'Pop the working directory.');
+    stdio.registerCommand('LS',      @VFS_COMMAND_LS,    'List directory contents.');
+    stdio.registerCommand('CD',      @VFS_COMMAND_CD,    'Set working directory.');
+    stdio.registerCommand('PUSHD',   @VFS_COMMAND_PUSHD, 'Push the working directory.');
+    stdio.registerCommand('POPD',    @VFS_COMMAND_POPD,  'Pop the working directory.');
 
     //ht:= PHashMap(Root^.Reference);
     //hashmap.add(ht, 'VDirectory', void(newDummyObject(otVDIRECTORY)));