v1.1.55: split large files + CRUD scenario editor

Backend (5→7 files):
- api_test.py: 622→479, terraform functions → operations/terraform.py (142)
- api_scenario.py: 241→split into run (153) + defs (108) with _validate_steps()
- db/scenario_defs.py: +client_id, stand, is_seed in list_definitions

Frontend (1→10 files):
- app.js: 554→16 (loader), split into:
  utils.js (45), instances.js (89), operations.js (249),
  history.js (35), scenario-list.js (90)
- New CRUD: scenario-form.js (128), create (25), edit (12), delete (13)

Max file size: JS 249, PY 479

site/static/js/history.js

@@ -0,0 +1,35 @@
+// history.js — история тестов
+
+let historyOpen=false;
+
+async function toggleHistory(){
+    const body=document.getElementById('history-body');
+    historyOpen=!historyOpen;
+    body.style.display=historyOpen?'block':'none';
+    if(historyOpen) await loadHistory();
+}
+
+async function loadHistory(){
+    const body=document.getElementById('history-body');
+    if(!body||body.style.display==='none') return;
+    try{
+        const r=await fetch('/api/history');
+        const rows=await r.json();
+        if(!rows||!rows.length){body.innerHTML='<span style="color:var(--muted);font-size:11px;">Нет записей</span>'; return;}
+        let html='<table style="width:100%;font-size:11px;">';
+        html+='<tr><th style="padding:2px 6px;">Время</th><th style="padding:2px 6px;">Операция</th><th style="padding:2px 6px;">Инстанс</th><th style="padding:2px 6px;">Статус</th><th style="padding:2px 6px;">Длит.</th></tr>';
+        rows.forEach(r=>{
+            const time=r.created_at?r.created_at.replace('T',' ').substring(0,19):'?';
+            const cls=r.status==='OK'?'badge-success':'';
+            html+=`<tr>
+                <td style="padding:2px 6px;">${time}</td>
+                <td style="padding:2px 6px;">${_esc(r.op_name||'?')}</td>
+                <td style="padding:2px 6px;">${_esc(r.display_name||r.instance_uid||'?')}</td>
+                <td style="padding:2px 6px;"><span class="badge ${cls}" style="font-size:9px;">${_esc(r.status||'?')}</span></td>
+                <td style="padding:2px 6px;">${r.duration_sec!=null?r.duration_sec.toFixed(1)+'s':'-'}</td>
+            </tr>`;
+        });
+        html+='</table>';
+        body.innerHTML=html;
+    }catch(e){body.innerHTML='<span style="color:var(--destructive);font-size:11px;">Ошибка загрузки</span>';}
+}