feat: implement GCode file upload functionality with drag-and-drop support

docker-compose.yml

@@ -1,9 +1,9 @@
 services:
   kx-bridge:
-    image: gitea.it-drui.de/viewit/kx-bridge:latest
+    # image: gitea.it-drui.de/viewit/kx-bridge:latest
     # Selbst bauen statt das Registry-Image zu pullen?
     # Dann image-Zeile auskommentieren und folgende aktivieren:
-    # build: .
+    build: .
     volumes:
       - ./config:/app/config
       - ./data:/app/data

web/themes/default/app.js

@@ -1536,6 +1536,38 @@ function loadStore(){
   }).catch(function(e){clog('Store-Fehler: '+e,'msg-err')});
 }
 
+function uploadGcode(file){
+  if(!file) return;
+  var zone=document.getElementById('store-upload-zone');
+  var status=document.getElementById('store-upload-status');
+  var label=document.getElementById('store-upload-label');
+  if(status) { status.textContent='⏳ Hochladen…'; status.style.display=''; status.className='upload-status-busy'; }
+  if(label) label.style.display='none';
+  if(zone) zone.style.pointerEvents='none';
+  var fd=new FormData();
+  fd.append('file', file);
+  fetch(_apiUrl('/api/files/local'),{method:'POST',body:fd})
+    .then(function(r){
+      if(!r.ok) return r.text().then(function(t){throw new Error(r.status+': '+t);});
+      return r.json();
+    })
+    .then(function(){
+      if(status){ status.textContent='✓ '+file.name; status.className='upload-status-ok'; }
+      loadStore();
+      setTimeout(function(){
+        if(status){status.style.display='none'; status.className='';}
+        if(label) label.style.display='';
+        if(zone) zone.style.pointerEvents='';
+      }, 3000);
+    })
+    .catch(function(e){
+      if(status){ status.textContent='✗ '+e.message; status.className='upload-status-err'; }
+      if(label) label.style.display='';
+      if(zone) zone.style.pointerEvents='';
+      clog('Upload-Fehler: '+e,'msg-err');
+    });
+}
+
 function renderStore(){
   var grid=document.getElementById('store-grid');
   var empty=document.getElementById('store-empty');

web/themes/default/index.html

@@ -400,6 +400,16 @@
             <option value="duration_asc" id="ss-dur">⏱ Druckzeit</option>
           </select>
         </div>
+        <div id="store-upload-zone" onclick="document.getElementById('store-upload-input').click()"
+          ondragover="event.preventDefault();this.classList.add('drag-over')"
+          ondragleave="this.classList.remove('drag-over')"
+          ondrop="event.preventDefault();this.classList.remove('drag-over');uploadGcode(event.dataTransfer.files[0])">
+          <input type="file" id="store-upload-input" accept=".gcode,.bgcode"
+            style="display:none" onchange="uploadGcode(this.files[0]);this.value=''">
+          <span id="store-upload-icon">⬆</span>
+          <span id="store-upload-label">GCode hierher ziehen oder <u>durchsuchen</u></span>
+          <span id="store-upload-status" style="display:none"></span>
+        </div>
         <div id="store-empty" style="display:none;color:var(--txt2);text-align:center;padding:40px 0;font-size:14px">
         </div>
         <div id="store-grid" style="display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px"></div>

web/themes/default/style.css

@@ -212,6 +212,22 @@ canvas.tchart{width:100%;height:60px;display:block;border-radius:6px;background:
 .panel{display:none}
 .panel.active{display:block}
 
+/* ── FILE BROWSER UPLOAD ZONE ── */
+#store-upload-zone{
+  display:flex;flex-direction:column;align-items:center;justify-content:center;
+  gap:6px;padding:18px 12px;margin-bottom:14px;
+  border:2px dashed var(--border);border-radius:10px;
+  background:var(--raised);color:var(--txt2);
+  cursor:pointer;transition:border-color .15s,background .15s;
+  font-size:13px;text-align:center;user-select:none;
+}
+#store-upload-zone:hover{border-color:var(--accent);background:rgba(0,200,255,.06);color:var(--txt)}
+#store-upload-zone.drag-over{border-color:var(--accent);background:rgba(0,200,255,.12);color:var(--accent)}
+#store-upload-icon{font-size:22px;line-height:1}
+.upload-status-busy{color:var(--txt2)}
+.upload-status-ok{color:var(--ok)}
+.upload-status-err{color:var(--err)}
+
 /* ── MODAL ── */
 .modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);
   z-index:200;align-items:center;justify-content:center;padding:16px}