operatore: immagine del task visione in fit, pagina senza scorrimento (Refs #96)

Pannello visione overflow-hidden/min-h-0, immagine e overlay object-contain
sovrapposti nel riquadro flex-1, colonna esito con scorrimento proprio.
Test sulle classi del template.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/frontend/flask_app/templates/measure/task_execute.html

@@ -534,9 +534,10 @@
   <div x-show="isVisionTask" x-cloak
        x-data="visionExecute()"
        x-init="ctx = () => ({ lot: lotNumber, serial: serialNumber, runId: productionRun ? productionRun.id : null })"
-       class="flex-1 overflow-auto p-3 flex flex-col lg:flex-row gap-3">
+       class="flex-1 min-h-0 overflow-hidden p-3 flex flex-col lg:flex-row gap-3">
+    {# #96: il pannello non scorre mai (overflow-hidden, min-h-0): l'immagine sta in fit nello spazio che resta #}
 
-    <div class="flex-1 min-w-0 flex flex-col gap-2">
+    <div class="flex-1 min-w-0 min-h-0 flex flex-col gap-2">
       <div class="flex items-center gap-2 flex-wrap">
         {# On a tablet this opens the camera; on a PC it picks a file. «Riprova» reuses the same input. #}
         <label class="btn btn-primary text-sm gap-1.5 cursor-pointer" :class="busy ? 'opacity-50 pointer-events-none' : ''">
@@ -558,16 +559,18 @@
 
       <div x-show="error" class="p-2 rounded-lg bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 text-sm text-measure-fail" x-text="error"></div>
 
-      <div x-show="shownImage" class="relative border border-[var(--border-color)] rounded-lg overflow-hidden bg-black/5">
-        <img x-ref="img" :src="shownImage" @load="drawOverlay()" alt="" class="block w-full h-auto">
-        <canvas x-ref="overlay" class="absolute inset-0 w-full h-full pointer-events-none"></canvas>
+      {# #96: riquadro flex-1 min-h-0; img e canvas object-contain sovrapposti (il canvas ha la stessa risoluzione naturale dell'immagine, quindi l'overlay resta allineato) #}
+      <div x-show="shownImage" class="relative flex-1 min-h-0 border border-[var(--border-color)] rounded-lg overflow-hidden bg-black/5">
+        <img x-ref="img" :src="shownImage" @load="drawOverlay()" alt="" class="absolute inset-0 w-full h-full object-contain">
+        <canvas x-ref="overlay" class="absolute inset-0 w-full h-full object-contain pointer-events-none"></canvas>
       </div>
       <div x-show="!shownImage" class="text-sm text-[var(--text-muted)]">
         {{ _('Nessuna immagine acquisita: premi «Acquisisci immagine».') }}
       </div>
     </div>
 
-    <div class="lg:w-80 shrink-0 flex flex-col gap-2" x-show="result">
+    {# #96: colonna esito con scorrimento proprio (solo con molte quote); sotto lg max 40% dell'altezza #}
+    <div class="lg:w-80 shrink-0 min-h-0 overflow-y-auto max-h-[40%] lg:max-h-none flex flex-col gap-2" x-show="result">
       <div class="text-sm font-bold text-[var(--text-primary)]">
         {{ _('Esito') }}: <span x-text="(result && result.outcome) || '-'"></span>
       </div>

src/frontend/flask_app/tests/test_vision_panel_fit.py

@@ -0,0 +1,54 @@
+"""gitea:Adriano/TieMeasureFlow#96 - l'immagine del task visione sta in fit, senza scorrimento.
+
+Controllo sulle classi del template: pannello overflow-hidden, img/canvas
+object-contain sovrapposti, nessun h-auto sull'immagine (era la causa dello scorrimento).
+"""
+from pathlib import Path
+
+TEMPLATE = Path(__file__).resolve().parents[1] / "templates" / "measure" / "task_execute.html"
+
+
+def _panel():
+    src = TEMPLATE.read_text(encoding="utf-8")
+    start = src.rindex("<div", 0, src.index('x-data="visionExecute()"'))
+    end = src.index("MEASUREMENT TIMER BANNER")
+    return src[start:end]
+
+
+def _tag_with(panel, marker):
+    # Il tag (aperto) che contiene il marker; i '>' dentro le virgolette (es. "=>") non lo chiudono.
+    pos = panel.index(marker)
+    i = panel.rindex("<", 0, pos)
+    quote = None
+    for j in range(i, len(panel)):
+        c = panel[j]
+        if quote:
+            quote = None if c == quote else quote
+        elif c in "\"'":
+            quote = c
+        elif c == ">":
+            return panel[i:j + 1]
+    raise AssertionError(marker)
+
+
+def test_panel_does_not_scroll():
+    tag = _tag_with(_panel(), 'x-data="visionExecute()"')
+    assert "overflow-hidden" in tag and "min-h-0" in tag
+    assert "overflow-auto" not in tag
+
+
+def test_image_is_object_contain_without_h_auto():
+    panel = _panel()
+    img = _tag_with(panel, 'x-ref="img"')
+    assert "object-contain" in img
+    assert "h-auto" not in img
+    canvas = _tag_with(panel, 'x-ref="overlay"')
+    assert "object-contain" in canvas  # stesso fit dell'img: overlay allineato
+
+
+def test_image_box_and_outcome_column_can_shrink():
+    panel = _panel()
+    box = _tag_with(panel, 'x-show="shownImage"')
+    assert "flex-1" in box and "min-h-0" in box
+    outcome = _tag_with(panel, 'x-show="result">')
+    assert "overflow-y-auto" in outcome and "min-h-0" in outcome