Add stopwatch fill button and asset cache-busting

- Stopwatch ⏱ button appears in add/quick-book rows when sw >= 1s, fills input with floor(seconds)
- AppController passes md5 hashes of app.js/style.css to template for automatic cache-busting

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

public/app.js

@@ -715,18 +715,23 @@ document.addEventListener('visibilitychange',function(){
   }
 });
 
-(function(){
+var sw = (function(){
   var swEl = document.getElementById('sw');
   var state = 0; // 0=stopped, 1=running, 2=paused
   var start = 0, elapsed = 0, raf = null;
 
-  function fmt(ms){
-    var s = ms / 1000;
-    return s.toFixed(2) + 's';
+  function getMs(){ return state === 1 ? elapsed + (Date.now() - start) : elapsed; }
+
+  function updateFillBtns(){
+    var show = getMs() >= 1000;
+    document.querySelectorAll('.btn-sw-fill').forEach(function(b){ b.style.display = show ? '' : 'none'; });
   }
 
+  function fmt(ms){ return (ms / 1000).toFixed(2) + 's'; }
+
   function tick(){
     swEl.textContent = fmt(Date.now() - start + elapsed);
+    updateFillBtns();
     raf = requestAnimationFrame(tick);
   }
 
@@ -740,12 +745,20 @@ document.addEventListener('visibilitychange',function(){
       elapsed += Date.now() - start;
       swEl.textContent = fmt(elapsed);
       swEl.classList.remove('running');
-      state = 2;
+      state = 2; updateFillBtns();
     } else {
       cancelAnimationFrame(raf);
       elapsed = 0; swEl.textContent = '0.00s';
       swEl.classList.remove('running');
-      state = 0;
+      state = 0; updateFillBtns();
     }
   });
+
+  document.addEventListener('click', function(e){
+    if(!e.target.classList.contains('btn-sw-fill')) return;
+    var inp = e.target.closest('.add-row, .qb-row').querySelector('.num-in');
+    if(inp) inp.value = Math.floor(getMs() / 1000);
+  });
+
+  return { getMs: getMs };
 })();

public/style.css

@@ -73,6 +73,8 @@ body{font-family:'DM Sans',sans-serif;background:var(--bg);color:var(--text);min
 .ulbl{font-size:12px;color:var(--text3)}
 .btn-as{flex:1;padding:8px;border-radius:var(--rs);background:var(--blue-bg);color:var(--blue);border:1px solid rgba(37,99,235,.2);cursor:pointer;font-family:'DM Sans',sans-serif;font-size:13px;font-weight:600}
 .btn-as:active{opacity:.7}
+.btn-sw-fill{flex:none;padding:7px 9px;border-radius:var(--rs);background:var(--bg3);color:var(--text2);border:1px solid var(--border2);cursor:pointer;font-size:13px;line-height:1}
+.btn-sw-fill:active{opacity:.7}
 .nosets{font-size:12px;color:var(--text3);padding:4px 0 8px}
 .card-foot{padding:8px 16px 12px;display:flex;justify-content:flex-end}
 .btn-del{background:none;border:none;color:var(--text3);font-size:12px;cursor:pointer;padding:4px 0;font-family:'DM Sans',sans-serif}

templates/app.html.twig

@@ -55,6 +55,7 @@
   <div class="add-row">
     <input class="num-in" type="number" min="1"/>
     <span class="ulbl"></span>
+    <button class="btn-sw-fill" style="display:none">⏱</button>
     <button class="btn-as">Eintragen</button>
   </div>
 </template>
@@ -74,6 +75,7 @@
     <div class="qb-name"></div>
     <div class="qb-stat"></div>
     <input class="num-in" type="number" min="1"/>
+    <button class="btn-sw-fill" style="display:none">⏱</button>
     <button class="btn-as">Eintragen</button>
   </div>
 </template>