fix: clarify compression elapsed cap

static/ui.js

@@ -1976,7 +1976,8 @@ function _compressionElapsedStartedAt(state){const n=Number(state&&state.started
 function _compressionElapsedLabel(state){
   const started=_compressionElapsedStartedAt(state);
   if(!started)return'';
-  const elapsed=Math.min(Math.max(0,(Date.now()/1000)-started),_COMPRESSION_ELAPSED_MAX_SECONDS);
+  const elapsed=Math.max(0,(Date.now()/1000)-started);
+  if(elapsed>=_COMPRESSION_ELAPSED_MAX_SECONDS)return '5+ min';
   return _formatActiveElapsedTimer(elapsed);
 }
 function _compressionElapsedExpired(state){const started=_compressionElapsedStartedAt(state);return !!(started&&((Date.now()/1000)-started)>=_COMPRESSION_ELAPSED_MAX_SECONDS);}
@@ -5012,11 +5013,9 @@ function _autoCompressionPreviewText(state){
 }
 function _autoCompressionDetailText(state){
   const running=state&&state.phase==='running';
-  const detail=_autoCompressionBaseDetail(state);
+  const base=_autoCompressionBaseDetail(state);
   const elapsedLabel=running?_compressionElapsedLabel(state):'';
-  return running&&elapsedLabel
-    ? `${detail}\nElapsed: ${elapsedLabel}`
-    : detail;
+  return elapsedLabel?`Elapsed: ${elapsedLabel}`:base;
 }
 function _autoCompressionCardsHtml(state){
   const running=state&&state.phase==='running';

tests/test_auto_compression_card.py

@@ -96,6 +96,31 @@ def test_auto_compression_running_card_renders_elapsed_timer_and_caps_updates():
     assert "_clearCompressionElapsedTimer();" in src
 
 
+def test_auto_compression_elapsed_cap_uses_non_frozen_label():
+    src = _read("static/ui.js")
+    start = src.find("function _compressionElapsedLabel")
+    assert start != -1, "elapsed label helper not found"
+    end = src.find("function _compressionElapsedExpired", start)
+    assert end != -1, "elapsed expiry helper not found after label helper"
+    helper = src[start:end]
+
+    assert "'5+ min'" in helper
+    assert "elapsed>=_COMPRESSION_ELAPSED_MAX_SECONDS" in helper
+    assert "return '05:00'" not in helper
+
+
+def test_auto_compression_running_detail_avoids_duplicate_message_text():
+    src = _read("static/ui.js")
+    start = src.find("function _autoCompressionDetailText")
+    assert start != -1, "auto compression detail helper not found"
+    end = src.find("function _autoCompressionCardsHtml", start)
+    assert end != -1, "auto compression card helper not found after detail helper"
+    helper = src[start:end]
+
+    assert "return elapsedLabel?`Elapsed: ${elapsedLabel}`:base;" in helper
+    assert "${base}\\nElapsed:" not in helper
+
+
 def test_auto_compression_live_card_keeps_elapsed_state_for_timer_refresh():
     src = _read("static/ui.js")
     start = src.find("function appendLiveCompressionCard")