prepare web build

CLAUDE.md

@@ -35,6 +35,18 @@ On Windows, use the launcher for best UTF-8 support:
 OpenTheBox.cmd
 ```
 
+### Web Build (itch.io)
+```
+dotnet run --project src/OpenTheBox.Web                                   # Dev local (http://localhost:5000)
+dotnet publish src/OpenTheBox.Web -c Release -o builds/web                # Publication
+```
+Upload `builds/web/wwwroot/` sur itch.io en HTML5.
+
+Running locally: 
+```
+npx serve builds/web/wwwroot/
+```
+
 ## Test
 ```
 dotnet test

src/OpenTheBox.Web/WebGameHost.cs

@@ -592,7 +592,7 @@ public sealed class WebGameHost
                 ColorSystem = ColorSystemSupport.TrueColor
             });
             bufferConsole.Profile.Width = WebTerminal.Width;
-            bufferConsole.Profile.Height = _terminal.Height;
+            bufferConsole.Profile.Height = WebTerminal.Height;
 
             bufferConsole.Write(InventoryPanel.Render(_state, _registry, _loc, scrollOffset, selectedIndex: selectedIndex));
 

src/OpenTheBox.Web/WebTerminal.cs

@@ -28,7 +28,7 @@ public sealed class WebTerminal
         });
 
     public const int Width = 120;
-    public int Height { get; private set; } = 30;
+    public const int Height = 30;
 
     public WebTerminal(IJSRuntime js)
     {
@@ -37,23 +37,12 @@ public sealed class WebTerminal
     }
 
     /// <summary>
-    /// Initializes the xterm.js terminal in the browser and reads actual dimensions.
+    /// Initializes the xterm.js terminal in the browser (fixed 120x30).
     /// </summary>
     public async Task InitAsync()
     {
         await _js.InvokeVoidAsync("terminalInterop.init");
-
-        // Read actual terminal dimensions after fitAddon has sized the terminal
-        try
-        {
-            var dims = await _js.InvokeAsync<TerminalDimensions>("terminalInterop.getDimensions");
-            if (dims.rows >= 30)
-                Height = dims.rows;
     }
-        catch { /* fallback to 30 */ }
-    }
-
-    private record TerminalDimensions(int cols, int rows);
 
     // ── Output ───────────────────────────────────────────────────────────
 
@@ -94,7 +83,7 @@ public sealed class WebTerminal
             ColorSystem = ColorSystemSupport.TrueColor
         });
         console.Profile.Width = Width;
-        console.Profile.Height = _instance?.Height ?? 50;
+        console.Profile.Height = Height;
         console.Write(renderable);
         return writer.ToString();
     }

src/OpenTheBox.Web/wwwroot/css/terminal.css

@@ -21,17 +21,16 @@ body {
     align-items: center;
     width: 100%;
     height: 100%;
-    padding: 8px;
 }
 
 #terminal-container.active {
     display: flex;
 }
 
+/* Let xterm.js determine the natural size from 120x30 @ fontSize 16.
+   CSS transform scale (set by JS) shrinks it to fit smaller viewports. */
 #terminal {
-    width: 100%;
-    height: 100%;
-    max-width: 1200px;
+    flex-shrink: 0;
 }
 
 /* Loading screen */

src/OpenTheBox.Web/wwwroot/index.html

@@ -20,7 +20,6 @@
     </div>
 
     <script src="https://cdn.jsdelivr.net/npm/@xterm/xterm@5.5.0/lib/xterm.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/@xterm/addon-fit@0.10.0/lib/addon-fit.min.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/@xterm/addon-web-links@0.11.0/lib/addon-web-links.min.js"></script>
     <script src="js/terminal-interop.js"></script>
 

src/OpenTheBox.Web/wwwroot/js/terminal-interop.js

@@ -1,14 +1,13 @@
 // Terminal interop bridge: xterm.js <-> .NET Blazor WASM
 window.terminalInterop = {
     term: null,
-    fitAddon: null,
 
     init: function () {
         const term = new Terminal({
             cols: 120,
             rows: 30,
             fontFamily: "'Cascadia Mono', 'Consolas', 'Courier New', monospace",
-            fontSize: 14,
+            fontSize: 16,
             theme: {
                 background: '#1a1a2e',
                 foreground: '#e0e0e0',
@@ -18,43 +17,47 @@ window.terminalInterop = {
             },
             cursorBlink: true,
             allowProposedApi: true,
-            scrollback: 1000
+            scrollback: 0
         });
 
-        const fitAddon = new FitAddon.FitAddon();
-        term.loadAddon(fitAddon);
-
-        // Show terminal container BEFORE opening so fitAddon can measure real dimensions
+        // Show terminal container BEFORE opening so xterm can measure
         document.getElementById('loading').classList.add('hidden');
         document.getElementById('terminal-container').classList.add('active');
 
         term.open(document.getElementById('terminal'));
 
-        // Fit to container, enforce minimum dimensions for game readability
-        fitAddon.fit();
-        const minCols = 120, minRows = 30;
-        if (term.cols < minCols || term.rows < minRows) {
-            term.resize(Math.max(term.cols, minCols), Math.max(term.rows, minRows));
-        }
+        // Scale the terminal to fit the viewport while keeping exact 120x30
+        this._scaleToFit();
+        window.addEventListener('resize', () => this._scaleToFit());
 
         // Forward key input to C#
         term.onData(function (data) {
             DotNet.invokeMethodAsync('OpenTheBox.Web', 'OnTerminalInput', data);
         });
 
-        // Handle resize
-        window.addEventListener('resize', function () {
-            fitAddon.fit();
-            if (term.cols < minCols || term.rows < minRows) {
-                term.resize(Math.max(term.cols, minCols), Math.max(term.rows, minRows));
-            }
-        });
-
         this.term = term;
-        this.fitAddon = fitAddon;
         term.focus();
     },
 
+    _scaleToFit: function () {
+        const el = document.querySelector('#terminal .xterm-screen');
+        if (!el) return;
+
+        const container = document.getElementById('terminal-container');
+        const pad = 16; // padding around terminal
+        const maxW = container.clientWidth - pad;
+        const maxH = container.clientHeight - pad;
+        const termW = el.offsetWidth;
+        const termH = el.offsetHeight;
+
+        if (termW === 0 || termH === 0) return;
+
+        const scale = Math.min(1, maxW / termW, maxH / termH);
+        const wrapper = document.getElementById('terminal');
+        wrapper.style.transform = scale < 1 ? `scale(${scale})` : '';
+        wrapper.style.transformOrigin = 'center center';
+    },
+
     write: function (text) {
         if (this.term) {
             this.term.write(text);
@@ -75,9 +78,6 @@ window.terminalInterop = {
     },
 
     getDimensions: function () {
-        if (this.term) {
-            return { cols: this.term.cols, rows: this.term.rows };
-        }
         return { cols: 120, rows: 30 };
     }
 };