stopka z commitem

app.js

@@ -478,3 +478,30 @@ window.addEventListener('keydown', (e)=>{
 
 // small helper to set initial focus - mobile browsers will not open keyboard for divs
 document.addEventListener('touchstart', ()=>{}, {passive:true})
+
+// load COMMIT_SHA from /version.js if present (no-cache fetch)
+;(function loadCommitSha(){
+  const el = document.getElementById('commit-sha')
+  if (!el) return
+  // prefer a no-cache fetch
+  fetch('/version.js', {cache: 'no-store'})
+    .then(r => {
+      if (!r.ok) throw new Error('no version.js')
+      return r.text()
+    })
+    .then(text => {
+      // naive parse: look for COMMIT_SHA = '...'; or window.COMMIT_SHA
+      let m = text.match(/COMMIT_SHA\s*=\s*['\"]([0-9a-fA-F]+)['\"]/)
+      if (m) return m[1]
+      m = text.match(/window\.COMMIT_SHA\s*=\s*['\"]([0-9a-fA-F]+)['\"]/)
+      if (m) return m[1]
+      return null
+    })
+    .catch(()=>{
+      // fallback to global
+      return (window && window.COMMIT_SHA) ? window.COMMIT_SHA : null
+    })
+    .then(sha => {
+      el.textContent = sha ? sha.slice(0,8) : 'unknown'
+    })
+})()