diff --git a/projects/dataforth-dos/testdatadb-fix/public/index.redesign.html b/projects/dataforth-dos/testdatadb-fix/public/index.redesign.html
index 591aa0e8..3884988d 100644
--- a/projects/dataforth-dos/testdatadb-fix/public/index.redesign.html
+++ b/projects/dataforth-dos/testdatadb-fix/public/index.redesign.html
@@ -6,125 +6,178 @@
 <title>Dataforth · TestDataDB</title>
 <style>
   :root{
-    --bg:#f8fafc; --surface:#ffffff; --border:#e2e8f0; --border-strong:#cbd5e1;
-    --ink:#0f172a; --ink-2:#475569; --ink-3:#94a3b8; --accent:#1e40af; --accent-soft:#eff6ff;
-    --pass-bg:#dcfce7; --pass-ink:#166534; --fail-bg:#fee2e2; --fail-ink:#991b1b;
-    --hover:#f1f5f9; --sel:#e0e7ff; --mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
+    --bg:#f6f8fa; --surface:#ffffff; --border:#e3e8ee; --border-strong:#cbd5e1;
+    --ink:#0f172a; --ink-2:#475569; --ink-3:#94a3b8; --accent:#1e40af; --accent-soft:#eef4ff;
+    --pass-bg:#dcfce7; --pass-ink:#15803d; --fail-bg:#fee2e2; --fail-ink:#b91c1c;
+    --hover:#f1f5f9; --sel:#e0e7ff; --desk:#e7ecf1;
+    --mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
     --sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
+    --r:6px; --insp:480px;
   }
   *{box-sizing:border-box}
   html,body{height:100%;margin:0}
-  body{font-family:var(--sans);font-size:14px;color:var(--ink);background:var(--bg);
-       display:grid;grid-template-rows:auto 1fr;overflow:hidden}
+  body{font-family:var(--sans);font-size:13.5px;color:var(--ink);background:var(--bg);
+       display:grid;grid-template-rows:auto 1fr;overflow:hidden;-webkit-font-smoothing:antialiased}
+  button,input,select{font-family:inherit}
+  :focus-visible{outline:none;box-shadow:0 0 0 2px var(--surface),0 0 0 4px var(--accent)}
   /* ---------- header ---------- */
-  header{display:flex;align-items:center;gap:16px;padding:0 16px;height:52px;
-         background:var(--surface);border-bottom:1px solid var(--border)}
-  .brand{font-weight:700;letter-spacing:-.01em;white-space:nowrap}
-  .brand span{color:var(--accent)}
-  .omni{flex:1;position:relative}
-  .omni input{width:100%;height:36px;padding:0 12px 0 32px;font-size:14px;font-family:var(--sans);
-        border:1px solid var(--border-strong);border-radius:6px;background:var(--bg);color:var(--ink)}
-  .omni input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft);background:#fff}
-  .omni .ic{position:absolute;left:10px;top:9px;color:var(--ink-3);font-size:15px}
-  .omni .route{position:absolute;right:10px;top:9px;font-size:11px;color:var(--ink-3);font-family:var(--mono)}
+  header{display:flex;align-items:center;gap:14px;padding:0 14px;height:50px;
+         background:var(--surface);border-bottom:1px solid var(--border);position:relative;z-index:30}
+  .brand{font-weight:700;letter-spacing:-.01em;white-space:nowrap;font-size:14.5px}
+  .brand b{color:var(--accent);font-weight:700}
+  .menubtn{display:none;border:1px solid var(--border);background:none;border-radius:var(--r);height:32px;width:34px;cursor:pointer;color:var(--ink-2)}
+  .omni{flex:1;position:relative;max-width:780px}
+  .omni .field{display:flex;align-items:center;height:38px;border:1px solid var(--border-strong);border-radius:8px;background:var(--bg);padding:0 8px 0 30px;position:relative}
+  .omni .field:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:#fff}
+  .omni .ic{position:absolute;left:9px;color:var(--ink-3);font-size:15px;line-height:1}
+  .omni input{flex:1;height:100%;border:0;background:none;font-size:14px;color:var(--ink);outline:none}
+  .mode{font-size:10.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent);
+        background:var(--accent-soft);border:1px solid #dbeafe;border-radius:5px;padding:2px 7px;cursor:pointer;white-space:nowrap}
+  .mode:hover{background:#dbeafe}
+  .history{position:absolute;top:44px;left:0;right:0;background:#fff;border:1px solid var(--border);border-radius:8px;
+        box-shadow:0 8px 24px rgba(15,23,42,.12);padding:5px;display:none;z-index:40}
+  .history.show{display:block}
+  .history .hl{font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-3);padding:5px 8px}
+  .history button{display:flex;align-items:center;gap:8px;width:100%;text-align:left;border:0;background:none;
+        border-radius:5px;padding:6px 8px;font-size:13px;cursor:pointer;color:var(--ink);font-family:var(--mono)}
+  .history button:hover{background:var(--hover)}
   .badge{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-2);white-space:nowrap}
   .dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 3px #22c55e22}
-  .hbtn{font:inherit;font-size:12px;color:var(--ink-2);background:none;border:1px solid var(--border);
-        border-radius:6px;height:30px;padding:0 10px;cursor:pointer}
+  .hbtn{font-size:12.5px;color:var(--ink-2);background:none;border:1px solid var(--border);border-radius:var(--r);height:32px;padding:0 11px;cursor:pointer}
   .hbtn:hover{background:var(--hover)}
+  /* ---------- stats popover ---------- */
+  .pop{position:absolute;top:46px;right:12px;width:340px;background:#fff;border:1px solid var(--border);
+       border-radius:10px;box-shadow:0 12px 34px rgba(15,23,42,.16);padding:16px;display:none;z-index:50}
+  .pop.show{display:block}
+  .pop h4{margin:0 0 2px;font-size:13px}
+  .pop .big{font-size:26px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
+  .pop .sub{font-size:11.5px;color:var(--ink-3)}
+  .pop .bar{display:flex;height:10px;border-radius:5px;overflow:hidden;margin:12px 0 6px;background:#eef2f6}
+  .pop .bar i{display:block}
+  .pop .legend{display:flex;gap:14px;font-size:11.5px;color:var(--ink-2)}
+  .pop .legend span::before{content:"";display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px;vertical-align:middle}
+  .pop .lt{display:flex;justify-content:space-between;font-size:12px;padding:3px 0;border-top:1px solid var(--border);font-family:var(--mono)}
+  .pop .lt:first-of-type{border-top:0;margin-top:8px}
   /* ---------- layout ---------- */
-  main{display:grid;grid-template-columns:232px 1fr var(--insp,460px);min-height:0;height:100%}
+  main{display:grid;grid-template-columns:236px 1fr var(--insp);min-height:0;height:100%}
   .pane{min-height:0;overflow:auto}
-  /* ---------- presets ---------- */
-  .presets{display:flex;flex-direction:column;gap:5px}
-  .preset{display:flex;align-items:center;gap:7px;width:100%;text-align:left;font:inherit;font-size:12.5px;
-        height:30px;padding:0 9px;border:1px solid var(--border);border-radius:6px;background:#fff;color:var(--ink);cursor:pointer}
-  .preset:hover{background:var(--accent-soft);border-color:#bfdbfe}
-  .preset .pi{width:15px;text-align:center;color:var(--ink-3)}
-  .preset.fam{display:inline-flex;width:auto;height:26px;font-family:var(--mono);font-size:11.5px;padding:0 8px}
-  .preset.fam:disabled,.preset:disabled{opacity:.5;cursor:not-allowed;background:#fff}
-  .famrow{display:flex;flex-wrap:wrap;gap:5px;margin-top:6px}
   /* ---------- filter rail ---------- */
-  .rail{border-right:1px solid var(--border);background:var(--surface);padding:14px}
-  .rail h3{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);margin:18px 0 8px;font-weight:600}
+  .rail{border-right:1px solid var(--border);background:var(--surface);padding:14px;overflow-y:auto}
+  .rail h3{font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);margin:18px 0 8px;font-weight:600}
   .rail h3:first-child{margin-top:0}
-  .seg{display:flex;border:1px solid var(--border-strong);border-radius:6px;overflow:hidden}
-  .seg button{flex:1;font:inherit;font-size:12px;height:30px;border:0;background:#fff;color:var(--ink-2);cursor:pointer}
-  .seg button+button{border-left:1px solid var(--border)}
-  .seg button.on{background:var(--accent);color:#fff}
+  .presets{display:flex;flex-direction:column;gap:5px}
+  .preset{display:flex;align-items:center;gap:8px;width:100%;text-align:left;font-size:12.5px;height:31px;padding:0 9px;
+        border:1px solid var(--border);border-radius:var(--r);background:#fff;color:var(--ink);cursor:pointer;transition:background .08s}
+  .preset:hover:not(:disabled){background:var(--accent-soft);border-color:#bfdbfe}
+  .preset .pi{width:14px;text-align:center;color:var(--accent);font-size:12px}
+  .preset:disabled{opacity:.45;cursor:not-allowed}
+  .famrow{display:flex;flex-wrap:wrap;gap:5px;margin-top:7px}
+  .fam{font-family:var(--mono);font-size:11.5px;height:26px;padding:0 9px;border:1px solid var(--border);border-radius:5px;background:#fff;color:var(--ink-2);cursor:pointer}
+  .fam:hover{background:var(--accent-soft);border-color:#bfdbfe;color:var(--accent)}
   .rail label{display:block;font-size:11px;color:var(--ink-3);margin:8px 0 3px}
-  .rail input,.rail select{width:100%;height:30px;font:inherit;font-size:13px;padding:0 8px;
-        border:1px solid var(--border-strong);border-radius:6px;background:#fff;color:var(--ink)}
-  .rail input:focus,.rail select:focus{outline:none;border-color:var(--accent)}
-  .reset{margin-top:18px;width:100%;height:30px;font:inherit;font-size:12px;background:none;
-        border:1px solid var(--border);border-radius:6px;color:var(--ink-2);cursor:pointer}
+  .rail input,.rail select{width:100%;height:31px;font-size:13px;padding:0 8px;border:1px solid var(--border-strong);border-radius:var(--r);background:#fff;color:var(--ink)}
+  .rail input:focus,.rail select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
+  .chips{display:flex;gap:5px;margin-top:7px}
+  .chip{font-size:11px;height:24px;padding:0 8px;border:1px solid var(--border);border-radius:20px;background:#fff;color:var(--ink-2);cursor:pointer}
+  .chip:hover{background:var(--hover)}
+  .reset{margin-top:18px;width:100%;height:31px;font-size:12px;background:none;border:1px solid var(--border);border-radius:var(--r);color:var(--ink-2);cursor:pointer}
   .reset:hover{background:var(--hover)}
   /* ---------- results ---------- */
-  .results{display:grid;grid-template-rows:auto 1fr auto;min-height:0;background:var(--surface)}
+  .results{display:grid;grid-template-rows:auto auto 1fr auto;min-height:0;background:var(--surface)}
   .rtoolbar{display:flex;align-items:center;gap:12px;padding:8px 12px;border-bottom:1px solid var(--border);font-size:12px;color:var(--ink-2)}
-  .rtoolbar .count{font-weight:600;color:var(--ink)}
+  .rtoolbar .count{font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
   .rtoolbar .sp{flex:1}
-  .rtoolbar a,.rtoolbar select{font:inherit;font-size:12px;color:var(--accent);text-decoration:none}
-  .rtoolbar select{color:var(--ink-2);border:1px solid var(--border);border-radius:5px;height:26px}
+  .rtoolbar a{font-size:12px;color:var(--accent);text-decoration:none}
+  .rtoolbar a:hover{text-decoration:underline}
+  .rtoolbar select{font-size:12px;color:var(--ink-2);border:1px solid var(--border);border-radius:5px;height:27px;background:#fff}
+  .selbar{display:none;align-items:center;gap:10px;padding:6px 12px;background:var(--accent-soft);border-bottom:1px solid #dbeafe;font-size:12px;color:var(--accent)}
+  .selbar.show{display:flex}
+  .selbar button{font-size:12px;height:26px;padding:0 9px;border:1px solid #bfdbfe;border-radius:var(--r);background:#fff;color:var(--accent);cursor:pointer}
+  .selbar button:disabled{opacity:.5;cursor:not-allowed}
   .twrap{overflow:auto;min-height:0}
   table{width:100%;border-collapse:collapse;font-size:13px}
-  thead th{position:sticky;top:0;background:#f8fafc;border-bottom:1px solid var(--border-strong);
-        text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-3);
-        font-weight:600;padding:7px 10px;white-space:nowrap;z-index:1}
+  thead th{position:sticky;top:0;background:#f7f9fb;border-bottom:1px solid var(--border-strong);text-align:left;
+        font-size:10.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-3);font-weight:600;padding:7px 10px;white-space:nowrap;z-index:1;user-select:none}
+  thead th.s{cursor:pointer}
+  thead th.s:hover{color:var(--ink-2)}
+  thead th .arr{color:var(--accent);font-size:9px;margin-left:3px}
+  thead th.ck{width:30px;padding-left:12px}
   tbody td{padding:5px 10px;border-bottom:1px solid var(--border);white-space:nowrap}
+  tbody td.ck{padding-left:12px}
   tbody tr{cursor:pointer}
   tbody tr:hover{background:var(--hover)}
   tbody tr.sel{background:var(--sel)}
   tbody tr.sel td:first-child{box-shadow:inset 3px 0 0 var(--accent)}
-  .mono{font-family:var(--mono);font-size:12.5px}
-  .pill{display:inline-block;font-size:11px;font-weight:600;padding:1px 8px;border-radius:4px;font-family:var(--mono)}
+  .mono{font-family:var(--mono);font-size:12.5px;font-variant-numeric:tabular-nums}
+  .pill{display:inline-block;font-size:10.5px;font-weight:700;padding:1px 8px;border-radius:4px;font-family:var(--mono)}
   .pill.PASS{background:var(--pass-bg);color:var(--pass-ink)}
   .pill.FAIL{background:var(--fail-bg);color:var(--fail-ink)}
-  .pager{display:flex;align-items:center;gap:10px;padding:8px 12px;border-top:1px solid var(--border);font-size:12px;color:var(--ink-2)}
-  .pager button{font:inherit;font-size:12px;height:28px;padding:0 10px;border:1px solid var(--border-strong);
-        border-radius:6px;background:#fff;cursor:pointer;color:var(--ink)}
+  .web{font-size:13px}
+  .pager{display:flex;align-items:center;gap:10px;padding:7px 12px;border-top:1px solid var(--border);font-size:12px;color:var(--ink-2)}
+  .pager button{font-size:12px;height:28px;padding:0 11px;border:1px solid var(--border-strong);border-radius:var(--r);background:#fff;cursor:pointer;color:var(--ink)}
   .pager button:disabled{opacity:.4;cursor:default}
+  .pager .hint{color:var(--ink-3)}
+  .state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:40px 20px;color:var(--ink-3);text-align:center}
+  .state .em{font-size:26px;opacity:.6}
+  .state.err{color:var(--fail-ink)}
+  .state button{margin-top:4px;font-size:12px;height:28px;padding:0 12px;border:1px solid var(--border-strong);border-radius:var(--r);background:#fff;cursor:pointer;color:var(--ink)}
+  .skel{height:13px;margin:8px 10px;border-radius:4px;background:linear-gradient(90deg,#eef2f6,#e2e8f0,#eef2f6);background-size:200% 100%;animation:sh 1.1s infinite}
+  @keyframes sh{0%{background-position:200% 0}100%{background-position:-200% 0}}
   /* ---------- inspector ---------- */
   .insp{position:relative;border-left:1px solid var(--border);background:var(--surface);display:grid;grid-template-rows:auto auto 1fr;min-height:0}
   .resizer{position:absolute;left:-3px;top:0;bottom:0;width:7px;cursor:col-resize;z-index:5}
   .resizer:hover,.resizer.drag{background:linear-gradient(90deg,transparent,var(--accent) 45%,var(--accent) 55%,transparent)}
   body.resizing{cursor:col-resize;user-select:none}
-  .insp .meta{padding:12px 14px;border-bottom:1px solid var(--border)}
-  .insp .meta .sn{font-family:var(--mono);font-size:16px;font-weight:700}
-  .insp .meta dl{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;margin:10px 0 0;font-size:12.5px}
-  .insp .meta dt{color:var(--ink-3)}
-  .insp .meta dd{margin:0;font-family:var(--mono)}
-  .insp .acts{display:flex;gap:6px;flex-wrap:wrap;padding:10px 14px;border-bottom:1px solid var(--border)}
-  .insp .acts a,.insp .acts button{font:inherit;font-size:12px;height:28px;padding:0 10px;border:1px solid var(--border-strong);
-        border-radius:6px;background:#fff;color:var(--ink);text-decoration:none;display:inline-flex;align-items:center;cursor:pointer}
-  .insp .acts .pri{background:var(--accent);border-color:var(--accent);color:#fff}
-  .insp iframe{width:100%;height:100%;border:0;background:#fff}
-  .empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--ink-3);gap:8px;font-size:13px;text-align:center;padding:20px}
-  .skel{height:24px;margin:6px 10px;border-radius:4px;background:linear-gradient(90deg,#f1f5f9,#e8edf3,#f1f5f9);background-size:200% 100%;animation:sh 1.1s infinite}
-  @keyframes sh{0%{background-position:200% 0}100%{background-position:-200% 0}}
-  kbd{font-family:var(--mono);font-size:11px;background:#f1f5f9;border:1px solid var(--border-strong);border-bottom-width:2px;border-radius:4px;padding:0 5px}
+  .meta{padding:12px 14px;border-bottom:1px solid var(--border)}
+  .meta .sn{font-family:var(--mono);font-size:16px;font-weight:700;letter-spacing:-.01em}
+  .meta dl{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;margin:10px 0 0;font-size:12.5px}
+  .meta dt{color:var(--ink-3)}
+  .meta dd{margin:0;font-family:var(--mono)}
+  .acts{display:flex;gap:6px;flex-wrap:wrap;padding:10px 14px;border-bottom:1px solid var(--border)}
+  .acts a,.acts button{font-size:12px;height:29px;padding:0 11px;border:1px solid var(--border-strong);border-radius:var(--r);
+        background:#fff;color:var(--ink);text-decoration:none;display:inline-flex;align-items:center;gap:5px;cursor:pointer}
+  .acts a:hover,.acts button:hover:not(:disabled){background:var(--hover)}
+  .acts .pri{background:var(--accent);border-color:var(--accent);color:#fff}
+  .acts .pri:hover{background:#1c3aa9}
+  .acts button:disabled{opacity:.5;cursor:not-allowed}
+  .viewer{background:var(--desk);overflow:auto;padding:14px;position:relative}
+  .viewer iframe{display:block;width:100%;min-height:100%;border:1px solid var(--border);border-radius:5px;background:#fff;
+        box-shadow:0 1px 5px rgba(15,23,42,.10)}
+  kbd{font-family:var(--mono);font-size:11px;background:#f1f5f9;border:1px solid var(--border-strong);border-bottom-width:2px;border-radius:4px;padding:0 5px;color:var(--ink-2)}
+  /* ---------- responsive ---------- */
+  @media (max-width:1180px){
+    main{grid-template-columns:1fr var(--insp)}
+    .rail{position:absolute;top:50px;bottom:0;left:0;width:250px;z-index:20;box-shadow:6px 0 20px rgba(15,23,42,.12);transform:translateX(-104%);transition:transform .18s}
+    body.rail-open .rail{transform:none}
+    .menubtn{display:inline-flex;align-items:center;justify-content:center}
+  }
+  @media (max-width:820px){ main{grid-template-columns:1fr} .insp{position:absolute;top:50px;bottom:0;right:0;width:min(94vw,520px);z-index:18;box-shadow:-8px 0 24px rgba(15,23,42,.14)} .insp:not(.open){display:none} .resizer{display:none} }
 </style>
 </head>
 <body>
 <header>
-  <div class="brand">Dataforth <span>·</span> TestDataDB</div>
+  <button class="menubtn" id="menu" title="Filters">☰</button>
+  <div class="brand">Dataforth <b>·</b> TestDataDB</div>
   <div class="omni">
-    <span class="ic">🔍</span>
-    <input id="omni" autocomplete="off" spellcheck="false"
-      placeholder="Search serial, model, or text…   (press / to focus)">
-    <span class="route" id="route"></span>
+    <div class="field">
+      <span class="ic">🔍</span>
+      <input id="omni" autocomplete="off" spellcheck="false" placeholder="Search serial, model, or text…   ( / to focus,  s: m: t: to force )">
+      <button class="mode" id="mode" title="Click to force the search mode">auto</button>
+    </div>
+    <div class="history" id="history"></div>
   </div>
   <div class="badge"><span class="dot"></span><span id="ingest">loading…</span></div>
-  <button class="hbtn" id="statsBtn" title="Database statistics">Stats</button>
+  <button class="hbtn" id="statsBtn">Stats ▾</button>
+  <div class="pop" id="statsPop"></div>
 </header>
 
 <main>
-  <!-- filter rail -->
-  <aside class="rail pane">
+  <aside class="rail pane" id="rail">
     <h3>Quick searches</h3>
     <div class="presets" id="presets"></div>
     <div class="famrow" id="families"></div>
     <h3>Test date</h3>
+    <div class="chips" id="dateChips"></div>
     <label>From</label><input type="date" id="fFrom">
     <label>To</label><input type="date" id="fTo">
     <h3>Model</h3>
@@ -134,130 +187,195 @@
     <select id="fStation"><option value="">any station</option></select>
     <h3>Log type</h3>
     <select id="fLog"><option value="">any log</option></select>
-    <button class="reset" id="reset">Reset filters</button>
+    <button class="reset" id="reset">Reset all</button>
   </aside>
 
-  <!-- results -->
   <section class="results">
     <div class="rtoolbar">
       <span class="count" id="count">—</span><span>results</span>
       <span class="sp"></span>
-      <label>rows
-        <select id="pageSize"><option>25</option><option selected>50</option><option>100</option></select>
-      </label>
-      <a id="exportCsv" href="#">Export CSV ↓</a>
+      <label>rows <select id="pageSize"><option>25</option><option selected>50</option><option>100</option></select></label>
+      <a id="exportCsv" href="#" title="Export current filtered results">Export CSV ↓</a>
+    </div>
+    <div class="selbar" id="selbar">
+      <span id="selcount">0 selected</span>
+      <button id="copySel">Copy serials</button>
+      <button id="repushSel" disabled title="Re-publish to the website — needs an API endpoint">Re-push ▴</button>
+      <span class="sp" style="flex:1"></span>
+      <button id="selclear" style="border:0;background:none">clear</button>
     </div>
     <div class="twrap" id="twrap">
       <table>
         <thead><tr>
-          <th>Serial</th><th>Model</th><th>Test Date</th><th>Stn</th><th>Log</th><th>Result</th><th>Web</th>
+          <th class="ck"><input type="checkbox" id="ckAll" title="select page"></th>
+          <th class="s" data-s="serial_number">Serial</th>
+          <th class="s" data-s="model_number">Model</th>
+          <th class="s" data-s="test_date">Test Date</th>
+          <th>Stn</th><th>Log</th>
+          <th class="s" data-s="overall_result">Result</th>
+          <th title="Published to public website">Web</th>
         </tr></thead>
         <tbody id="rows"></tbody>
       </table>
+      <div id="state"></div>
     </div>
     <div class="pager">
       <button id="prev">‹ Prev</button>
       <span id="pginfo">Page 1</span>
       <button id="next">Next ›</button>
       <span class="sp" style="flex:1"></span>
-      <span style="color:var(--ink-3)"><kbd>/</kbd> search · <kbd>↑</kbd><kbd>↓</kbd> rows · <kbd>↵</kbd> open · <kbd>Esc</kbd> clear</span>
+      <span class="hint"><kbd>/</kbd> search · <kbd>↑</kbd><kbd>↓</kbd> rows · <kbd>↵</kbd> open · <kbd>Esc</kbd> back</span>
     </div>
   </section>
 
-  <!-- inspector -->
-  <aside class="insp">
+  <aside class="insp" id="insp">
     <div class="resizer" id="resizer" title="Drag to resize"></div>
-    <div class="meta" id="meta"><div class="empty" style="height:auto;padding:8px 0">No record selected</div></div>
+    <div class="meta" id="meta"></div>
     <div class="acts" id="acts" style="display:none"></div>
-    <div id="viewer"><div class="empty">Search a serial number, then select a row.<br>The calibration certificate renders here.</div></div>
+    <div class="viewer" id="viewer"></div>
   </aside>
 </main>
 
 <script>
-const API = '';                       // same-origin; relative /api/...
-const $ = id => document.getElementById(id);
-const state = { q:'', serial:'', model:'', result:'', station:'', logtype:'', from:'', to:'', size:50, page:0, total:0, selected:null, rows:[] };
-let timer=null;
+const API='';
+const $=id=>document.getElementById(id);
+const state={q:'',serial:'',model:'',result:'',station:'',logtype:'',from:'',to:'',size:50,page:0,total:0,
+  selected:null,rows:[],sort:'',dir:'desc',checks:new Set(),force:''};
+let timer=null, certTimer=null;
+const esc=s=>String(s==null?'':s).replace(/[&<>"]/g,c=>({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;'}[c]));
+const fmtDate=d=>d?String(d).slice(0,10):'';
+const isoD=d=>d.toISOString().slice(0,10);
 
-// ---- omni-search routing: serial-ish -> serial, model-ish -> model, else full-text ----
-function routeOmni(v){
-  v=v.trim(); state.q=state.serial=state.model='';
-  if(!v){ $('route').textContent=''; return; }
-  if(/\s/.test(v)){ state.q=v; $('route').textContent='text'; }
-  else if(/^(scm|dsc|[5780]b|pwr|vas)/i.test(v)){ state.model=v; $('route').textContent='model'; }
-  else { state.serial=v; $('route').textContent='serial'; }
+/* ---------- omni routing (with s:/m:/t: overrides + encoded serials) ---------- */
+function routeOmni(raw){
+  state.q=state.serial=state.model=''; let v=(raw||'').trim(), mode=state.force;
+  const pm=v.match(/^([smt]):\s*(.*)$/i); if(pm){ mode={s:'serial',m:'model',t:'text'}[pm[1].toLowerCase()]; v=pm[2]; }
+  if(!v){ $('mode').textContent=state.force||'auto'; return; }
+  if(!mode){
+    if(/\s/.test(v)) mode='text';
+    else if(/^(scm|dsc|[57]b|8b|pwr|vas)/i.test(v)) mode='model';
+    else mode='serial';                    // numeric AND encoded (A243-1) serials land here
+  }
+  if(mode==='model') state.model=v; else if(mode==='text') state.q=v; else state.serial=v;
+  $('mode').textContent=mode;
 }
-function params(extra){
+$('mode').onclick=()=>{ const seq=['auto','serial','model','text']; state.force=seq[(seq.indexOf(state.force||'auto')+1)%4]; if(state.force==='auto')state.force=''; routeOmni($('omni').value); state.page=0; search(); };
+
+/* ---------- query / search ---------- */
+function params(forExport){
   const p=new URLSearchParams();
   for(const k of ['q','serial','model','result','station','logtype','from','to']) if(state[k]) p.set(k,state[k]);
-  if(extra!=='export'){ p.set('limit',state.size); p.set('offset',state.page*state.size); }
+  if(state.sort){ p.set('sort',state.sort); p.set('dir',state.dir); }   // needs API; harmless if ignored
+  if(!forExport){ p.set('limit',state.size); p.set('offset',state.page*state.size); }
   return p;
 }
-function syncUrl(){
-  const p=params(); if(state.selected) p.set('selected',state.selected);
-  history.replaceState(null,'', '?'+p.toString());
-}
-function fmtDate(d){ return d? String(d).slice(0,10) : ''; }
-
+function syncUrl(){ const p=params(); if(state.selected)p.set('selected',state.selected); history.replaceState(null,'','?'+p.toString()); }
+function showState(html,cls){ $('state').className='state '+(cls||''); $('state').innerHTML=html; $('rows').innerHTML=''; }
 async function search(){
-  $('rows').innerHTML = Array.from({length:8}).map(()=>'<tr><td colspan="7"><div class="skel"></div></td></tr>').join('');
+  $('state').innerHTML=''; $('rows').innerHTML=Array.from({length:9}).map(()=>'<tr><td colspan="8"><div class="skel"></div></td></tr>').join('');
   try{
-    const r = await fetch(API+'/api/search?'+params().toString());
-    const data = await r.json();
-    state.rows = data.records||[]; state.total = data.total||0;
-    renderRows();
-  }catch(e){ $('rows').innerHTML='<tr><td colspan="7" style="color:var(--fail-ink);padding:14px">Search failed: '+e.message+'</td></tr>'; }
-  $('exportCsv').href = API+'/api/export?'+params('export').toString();
-  syncUrl();
+    const r=await fetch(API+'/api/search?'+params().toString());
+    if(!r.ok) throw new Error('HTTP '+r.status);
+    const d=await r.json(); state.rows=d.records||[]; state.total=d.total||0; renderRows();
+  }catch(e){ showState('<div class="em">⚠</div>Search failed — '+esc(e.message)+'<button onclick="search()">Retry</button>','err'); $('count').textContent='—'; }
+  $('exportCsv').href=API+'/api/export?'+params(true).toString(); syncUrl();
 }
 function renderRows(){
-  $('count').textContent = state.total.toLocaleString();
-  const pages = Math.max(1, Math.ceil(state.total/state.size));
-  $('pginfo').textContent = 'Page '+(state.page+1)+' of '+pages.toLocaleString();
-  $('prev').disabled = state.page<=0; $('next').disabled = state.page>=pages-1;
-  if(!state.rows.length){ $('rows').innerHTML='<tr><td colspan="7" style="color:var(--ink-3);padding:18px">No records match. Try clearing a filter.</td></tr>'; return; }
-  $('rows').innerHTML = state.rows.map(r=>{
-    const web = r.api_uploaded_at ? '●' : '○';
+  $('count').textContent=state.total.toLocaleString();
+  const pages=Math.max(1,Math.ceil(state.total/state.size));
+  $('pginfo').textContent='Page '+(state.page+1)+' of '+pages.toLocaleString();
+  $('prev').disabled=state.page<=0; $('next').disabled=state.page>=pages-1;
+  if(!state.rows.length){ showState('<div class="em">∅</div>No records match.'+(activeFilters()?'<button onclick="document.getElementById(\'reset\').click()">Clear filters</button>':'')); return; }
+  $('state').innerHTML='';
+  $('rows').innerHTML=state.rows.map(r=>{
+    const ck=state.checks.has(String(r.id))?'checked':'';
     return `<tr data-id="${r.id}">
-      <td class="mono" style="font-weight:600">${r.serial_number||''}</td>
-      <td class="mono">${r.model_number||''}</td>
+      <td class="ck"><input type="checkbox" data-ck="${r.id}" ${ck}></td>
+      <td class="mono" style="font-weight:600">${esc(r.serial_number)}</td>
+      <td class="mono">${esc(r.model_number)}</td>
       <td class="mono">${fmtDate(r.test_date)}</td>
-      <td class="mono">${(r.test_station||'').replace(/^TS-/,'')}</td>
-      <td class="mono" style="color:var(--ink-3)">${(r.log_type||'').replace(/LOG$/,'')}</td>
-      <td><span class="pill ${r.overall_result}">${r.overall_result||''}</span></td>
-      <td style="color:${r.api_uploaded_at?'var(--pass-ink)':'var(--ink-3)'};text-align:center" title="${r.api_uploaded_at?'published to website':'not published'}">${web}</td>
+      <td class="mono">${esc((r.test_station||'').replace(/^TS-/,''))}</td>
+      <td class="mono" style="color:var(--ink-3)">${esc((r.log_type||'').replace(/LOG$/,''))}</td>
+      <td><span class="pill ${r.overall_result}">${esc(r.overall_result)}</span></td>
+      <td class="web" style="text-align:center;color:${r.api_uploaded_at?'var(--pass-ink)':'var(--ink-3)'}" title="${r.api_uploaded_at?'published':'not published'}">${r.api_uploaded_at?'●':'○'}</td>
     </tr>`;}).join('');
-  [...$('rows').children].forEach(tr=>tr.onclick=()=>select(tr.dataset.id));
-  // auto-select first (the serial fast-path) if a serial query
-  if(state.serial && state.rows[0]) select(state.rows[0].id);
-  else if(state.selected){ const tr=[...$('rows').children].find(t=>t.dataset.id==state.selected); if(tr) tr.classList.add('sel'); }
+  [...$('rows').children].forEach(tr=>{
+    tr.onclick=e=>{ if(e.target.dataset.ck!==undefined)return; select(tr.dataset.id); };
+    const cb=tr.querySelector('[data-ck]'); cb.onclick=e=>{e.stopPropagation(); const id=cb.dataset.ck; cb.checked?state.checks.add(id):state.checks.delete(id); updateSel();};
+  });
+  updateSortHeads();
+  if(state.serial&&state.rows[0]) select(state.rows[0].id,true);
+  else if(state.selected){ const tr=[...$('rows').children].find(t=>t.dataset.id==state.selected); if(tr)tr.classList.add('sel'); }
 }
-function select(id){
-  state.selected = id;
-  [...$('rows').children].forEach(t=>t.classList.toggle('sel', t.dataset.id==id));
-  const r = state.rows.find(x=>x.id==id); if(!r) return;
-  $('meta').innerHTML = `<div class="sn">${r.serial_number||''}</div>
-    <dl><dt>Model</dt><dd>${r.model_number||''}</dd>
+function activeFilters(){ return ['serial','model','q','result','station','logtype','from','to'].some(k=>state[k]); }
+
+/* ---------- selection (instant) + cert (lazy) ---------- */
+function select(id,auto){
+  state.selected=id;
+  [...$('rows').children].forEach(t=>t.classList.toggle('sel',t.dataset.id==id));
+  const r=state.rows.find(x=>x.id==id); if(!r) return;
+  $('meta').innerHTML=`<div class="sn">${esc(r.serial_number)}</div>
+    <dl><dt>Model</dt><dd>${esc(r.model_number)}</dd>
     <dt>Date</dt><dd>${fmtDate(r.test_date)}</dd>
-    <dt>Station</dt><dd>${r.test_station||''}</dd>
-    <dt>Result</dt><dd><span class="pill ${r.overall_result}">${r.overall_result||''}</span></dd>
-    <dt>Log</dt><dd>${r.log_type||''}</dd>
-    ${r.work_order?`<dt>WO</dt><dd>${r.work_order}</dd>`:''}
+    <dt>Station</dt><dd>${esc(r.test_station)}</dd>
+    <dt>Result</dt><dd><span class="pill ${r.overall_result}">${esc(r.overall_result)}</span></dd>
+    <dt>Log</dt><dd>${esc(r.log_type)}</dd>
+    ${r.work_order?`<dt>WO</dt><dd>${esc(r.work_order)}</dd>`:''}
     <dt>Web</dt><dd>${r.api_uploaded_at?'published '+fmtDate(r.api_uploaded_at):'not published'}</dd></dl>`;
+  const ds=API+'/api/datasheet/'+id;
   $('acts').style.display='flex';
-  const ds = API+'/api/datasheet/'+id;
-  $('acts').innerHTML = `<a class="pri" href="${ds}?format=html" target="_blank">Open ↗</a>
-    <button onclick="document.getElementById('viewer').querySelector('iframe').contentWindow.print()">Print</button>
-    <a href="${ds}?format=txt" download="${r.serial_number}.txt">TXT</a>
-    <a href="${ds}?format=html" download="${r.serial_number}.html">HTML</a>`;
-  $('viewer').innerHTML = '<iframe id="dsframe" title="datasheet"></iframe>';
-  const _f=document.getElementById('dsframe'); _f.onload=fitCert; _f.src=ds+'?format=html';
+  $('acts').innerHTML=`<a class="pri" href="${ds}?format=html" target="_blank">Open ↗</a>
+    <button onclick="printCert()">Print</button>
+    <a href="${ds}?format=txt" download="${esc(r.serial_number)}.txt">TXT</a>
+    <a href="${ds}?format=html" download="${esc(r.serial_number)}.html">HTML</a>
+    <button disabled title="Re-publish this cert — needs a POST /api/publish endpoint">Push to Web ▴</button>`;
+  $('insp').classList.add('open');
+  // lazy-load the certificate so fast arrow/typing stays snappy
+  $('viewer').innerHTML='<div class="state"><div class="skel" style="width:60%"></div></div>';
+  clearTimeout(certTimer);
+  certTimer=setTimeout(()=>loadCert(ds),auto?240:60);
   syncUrl();
 }
+function loadCert(ds){
+  $('viewer').innerHTML='<iframe id="dsframe" title="datasheet"></iframe>';
+  const f=$('dsframe'); f.onload=()=>{styleCert();fitCert();}; f.src=ds+'?format=html';
+}
+function styleCert(){ const f=$('dsframe'); try{ const doc=f.contentDocument; if(!doc)return;
+  if(!doc.getElementById('_inj')){ const s=doc.createElement('style'); s.id='_inj';
+    s.textContent='html,body{background:#fff!important;margin:0!important}body{padding:22px 26px!important;color:#0f172a}pre{margin:0;font-family:'+getComputedStyle(document.body).getPropertyValue('--mono')+';font-size:12.5px;line-height:1.32}';
+    (doc.head||doc.documentElement).appendChild(s); }
+}catch(e){} }
+function fitCert(){ const f=$('dsframe'); if(!f)return; try{ const doc=f.contentDocument; if(!doc)return;
+  const root=doc.documentElement; root.style.zoom='';
+  const nat=Math.max(doc.body?doc.body.scrollWidth:0,root.scrollWidth), av=f.clientWidth-2;
+  root.style.zoom=(nat>av)?Math.max(.45,av/nat):1;
+  f.style.height=Math.ceil((doc.body?doc.body.scrollHeight:600)*(nat>av?av/nat:1)+4)+'px';
+}catch(e){} }
+function printCert(){ const f=$('dsframe'); if(f&&f.contentWindow){f.contentWindow.focus();f.contentWindow.print();} }
+window.addEventListener('resize',()=>{fitCert();});
 
-// ---- filters wiring ----
-function debouncedSearch(){ clearTimeout(timer); timer=setTimeout(()=>{state.page=0;search();},280); }
-$('omni').addEventListener('input', e=>{ routeOmni(e.target.value); debouncedSearch(); });
+/* ---------- multi-select ---------- */
+function updateSel(){ const n=state.checks.size; $('selbar').classList.toggle('show',n>0); $('selcount').textContent=n+' selected';
+  $('ckAll').checked=n>0&&state.rows.every(r=>state.checks.has(String(r.id))); }
+$('ckAll').onclick=e=>{ state.rows.forEach(r=>{ e.target.checked?state.checks.add(String(r.id)):state.checks.delete(String(r.id)); });
+  [...$('rows').querySelectorAll('[data-ck]')].forEach(c=>c.checked=e.target.checked); updateSel(); };
+$('copySel').onclick=()=>{ const sns=state.rows.filter(r=>state.checks.has(String(r.id))).map(r=>r.serial_number).join('\n');
+  navigator.clipboard&&navigator.clipboard.writeText(sns); $('copySel').textContent='Copied ✓'; setTimeout(()=>$('copySel').textContent='Copy serials',1200); };
+$('selclear').onclick=()=>{ state.checks.clear(); [...$('rows').querySelectorAll('[data-ck]')].forEach(c=>c.checked=false); $('ckAll').checked=false; updateSel(); };
+
+/* ---------- sort ---------- */
+function updateSortHeads(){ [...document.querySelectorAll('thead th.s')].forEach(th=>{
+  const on=th.dataset.s===state.sort; th.querySelector('.arr')?.remove();
+  if(on){ const a=document.createElement('span'); a.className='arr'; a.textContent=state.dir==='asc'?'▲':'▼'; th.appendChild(a);} }); }
+document.querySelectorAll('thead th.s').forEach(th=>th.onclick=()=>{
+  const f=th.dataset.s; if(state.sort===f) state.dir=state.dir==='asc'?'desc':'asc'; else {state.sort=f;state.dir=f==='test_date'?'desc':'asc';}
+  state.page=0; search(); });
+
+/* ---------- filters / paging ---------- */
+function debouncedSearch(){ clearTimeout(timer); timer=setTimeout(()=>{state.page=0;state.checks.clear();updateSel();search();},280); }
+$('omni').addEventListener('input',e=>{routeOmni(e.target.value);debouncedSearch();});
+$('omni').addEventListener('focus',()=>{ if(!$('omni').value) showHistory(true); });
+$('omni').addEventListener('blur',()=>setTimeout(()=>showHistory(false),150));
 $('fFrom').onchange=e=>{state.from=e.target.value;state.page=0;search();};
 $('fTo').onchange=e=>{state.to=e.target.value;state.page=0;search();};
 $('fModel').onchange=e=>{state.model=e.target.value;state.page=0;search();};
@@ -267,93 +385,102 @@ $('pageSize').onchange=e=>{state.size=+e.target.value;state.page=0;search();};
 $('prev').onclick=()=>{if(state.page>0){state.page--;search();$('twrap').scrollTop=0;}};
 $('next').onclick=()=>{state.page++;search();$('twrap').scrollTop=0;};
 $('reset').onclick=()=>{ ['serial','model','q','result','station','logtype','from','to'].forEach(k=>state[k]='');
-  $('omni').value='';$('route').textContent='';$('fFrom').value=$('fTo').value=$('fStation').value=$('fLog').value=$('fModel').value='';
-  state.page=0; search(); };
+  state.sort='';state.checks.clear();updateSel(); $('omni').value='';$('mode').textContent=state.force||'auto';
+  $('fFrom').value=$('fTo').value=$('fStation').value=$('fLog').value=$('fModel').value=''; state.page=0; search(); };
+$('menu').onclick=()=>document.body.classList.toggle('rail-open');
 
-// ---- cert fit-to-width (same-origin: scale the rendered cert so it never side-scrolls) ----
-function fitCert(){
-  const f=document.getElementById('dsframe'); if(!f) return;
-  try{ const doc=f.contentDocument; if(!doc) return;
-    const root=doc.documentElement; root.style.zoom='';
-    const natural=Math.max(doc.body?doc.body.scrollWidth:0, root.scrollWidth);
-    const avail=f.clientWidth-12;
-    root.style.zoom = (natural>avail) ? Math.max(0.45, avail/natural) : 1;
-  }catch(e){}
-}
-window.addEventListener('resize', fitCert);
-
-// ---- resizable inspector ----
-(function(){ const rz=$('resizer'); let on=false;
-  rz.addEventListener('mousedown', e=>{ on=true; rz.classList.add('drag'); document.body.classList.add('resizing'); e.preventDefault(); });
-  window.addEventListener('mousemove', e=>{ if(!on) return;
-    let w=Math.max(340, Math.min(window.innerWidth-560, window.innerWidth-e.clientX));
-    document.documentElement.style.setProperty('--insp', w+'px'); });
-  window.addEventListener('mouseup', ()=>{ if(on){ on=false; rz.classList.remove('drag'); document.body.classList.remove('resizing'); fitCert(); } });
-})();
-
-// ---- quick-search presets ----
+/* ---------- presets ---------- */
 function clearAll(){ ['serial','model','q','result','station','logtype','from','to'].forEach(k=>state[k]='');
-  $('omni').value='';$('route').textContent='';$('fFrom').value=$('fTo').value=$('fStation').value=$('fLog').value=$('fModel').value=''; }
-function applyPreset(fn){ clearAll(); fn(); state.page=0; search(); }
-const _iso=d=>d.toISOString().slice(0,10);
+  $('omni').value='';$('mode').textContent=state.force||'auto';$('fFrom').value=$('fTo').value=$('fStation').value=$('fLog').value=$('fModel').value=''; }
+function applyPreset(fn){ clearAll(); fn(); state.page=0; state.checks.clear(); updateSel(); document.body.classList.remove('rail-open'); search(); }
 const PRESETS=[
   {ic:'◷',label:'Recent',fn:()=>{}},
   {ic:'✕',label:'Failures',fn:()=>{state.result='FAIL';}},
-  {ic:'•',label:'Today',fn:()=>{const t=_iso(new Date());state.from=t;state.to=t;}},
-  {ic:'7',label:'Last 7 days',fn:()=>{const d=new Date();d.setDate(d.getDate()-7);state.from=_iso(d);}},
-  {ic:'∷',label:'This year',fn:()=>{state.from=new Date().getFullYear()+'-01-01';}},
+  {ic:'•',label:'Today',fn:()=>{const t=isoD(new Date());state.from=t;state.to=t;}},
+  {ic:'7',label:'Last 7 days',fn:()=>{const d=new Date();d.setDate(d.getDate()-7);state.from=isoD(d);}},
 ];
 const SOON=[
-  {label:'Latest upload batch',why:'needs an upload-time sort param in /api/search'},
+  {label:'Latest upload batch',why:'needs sort=uploaded in /api/search'},
   {label:'Retested units',why:'needs a retest flag in the pipeline'},
   {label:'Not yet published',why:'needs a published filter in /api/search'},
 ];
 function renderPresets(){
-  const host=$('presets'); host.innerHTML='';
-  PRESETS.forEach(p=>{ const b=document.createElement('button'); b.className='preset';
-    b.innerHTML='<span class="pi">'+p.ic+'</span>'+p.label; b.onclick=()=>applyPreset(p.fn); host.appendChild(b); });
-  SOON.forEach(s=>{ const b=document.createElement('button'); b.className='preset'; b.disabled=true; b.title=s.why;
-    b.innerHTML='<span class="pi">…</span>'+s.label; host.appendChild(b); });
-  const fam=$('families'); fam.innerHTML='';
-  ['DSCA','8B','5B','7B','SCM5B'].forEach(m=>{ const b=document.createElement('button'); b.className='preset fam';
-    b.textContent=m; b.onclick=()=>applyPreset(()=>{state.model=m;$('fModel').value=m;}); fam.appendChild(b); });
+  $('presets').innerHTML='';
+  PRESETS.forEach(p=>{const b=document.createElement('button');b.className='preset';b.innerHTML='<span class="pi">'+p.ic+'</span>'+p.label;b.onclick=()=>applyPreset(p.fn);$('presets').appendChild(b);});
+  SOON.forEach(s=>{const b=document.createElement('button');b.className='preset';b.disabled=true;b.title=s.why;b.innerHTML='<span class="pi">…</span>'+s.label;$('presets').appendChild(b);});
+  $('families').innerHTML='';
+  ['DSCA','8B','5B','7B','SCM5B'].forEach(m=>{const b=document.createElement('button');b.className='fam';b.textContent=m;b.onclick=()=>applyPreset(()=>{state.model=m;$('fModel').value=m;});$('families').appendChild(b);});
+  $('dateChips').innerHTML='';
+  [['Today',0],['7d',7],['30d',30],['Year',-1]].forEach(([lbl,n])=>{const b=document.createElement('button');b.className='chip';b.textContent=lbl;
+    b.onclick=()=>{const d=new Date(); if(n===-1)state.from=d.getFullYear()+'-01-01'; else if(n===0){state.from=state.to=isoD(d);} else {d.setDate(d.getDate()-n);state.from=isoD(d);state.to='';}
+      $('fFrom').value=state.from;$('fTo').value=state.to||''; state.page=0;search();};
+    $('dateChips').appendChild(b);});
 }
 
-// ---- keyboard ----
-document.addEventListener('keydown', e=>{
-  if(e.key==='/' && document.activeElement!==$('omni')){ e.preventDefault(); $('omni').focus(); $('omni').select(); return; }
-  if(e.key==='Escape'){ if(document.activeElement===$('omni')&&$('omni').value){ $('omni').value='';routeOmni('');debouncedSearch(); } else { $('omni').focus(); } return; }
-  if((e.key==='ArrowDown'||e.key==='ArrowUp') && state.rows.length){ e.preventDefault();
-    let i=state.rows.findIndex(r=>r.id==state.selected); i = e.key==='ArrowDown'? Math.min(state.rows.length-1,i+1) : Math.max(0,i-1);
-    select(state.rows[i].id); const tr=[...$('rows').children][i]; if(tr) tr.scrollIntoView({block:'nearest'}); }
-  if(e.key==='Enter' && state.selected){ window.open(API+'/api/datasheet/'+state.selected+'?format=html','_blank'); }
+/* ---------- recent searches ---------- */
+function recents(){ try{return JSON.parse(localStorage.getItem('tdb_recent')||'[]')}catch(e){return[]} }
+function pushRecent(q){ if(!q)return; let r=recents().filter(x=>x!==q); r.unshift(q); r=r.slice(0,8); localStorage.setItem('tdb_recent',JSON.stringify(r)); }
+function showHistory(on){ const r=recents(); if(!on||!r.length){$('history').classList.remove('show');return;}
+  $('history').innerHTML='<div class="hl">Recent</div>'+r.map(q=>`<button data-q="${esc(q)}">↩ ${esc(q)}</button>`).join('');
+  [...$('history').querySelectorAll('button')].forEach(b=>b.onmousedown=()=>{$('omni').value=b.dataset.q;routeOmni(b.dataset.q);state.page=0;search();showHistory(false);});
+  $('history').classList.add('show'); }
+
+/* ---------- resizer ---------- */
+(function(){const rz=$('resizer');let on=false;
+  rz.addEventListener('mousedown',e=>{on=true;rz.classList.add('drag');document.body.classList.add('resizing');e.preventDefault();});
+  window.addEventListener('mousemove',e=>{if(!on)return;let w=Math.max(360,Math.min(window.innerWidth-540,window.innerWidth-e.clientX));document.documentElement.style.setProperty('--insp',w+'px');});
+  window.addEventListener('mouseup',()=>{if(on){on=false;rz.classList.remove('drag');document.body.classList.remove('resizing');fitCert();}});
+})();
+
+/* ---------- stats popover ---------- */
+let statsLoaded=false;
+$('statsBtn').onclick=async()=>{ const p=$('statsPop'); if(p.classList.contains('show')){p.classList.remove('show');return;}
+  p.classList.add('show'); if(statsLoaded)return;
+  try{ const s=await (await fetch(API+'/api/stats')).json(); statsLoaded=true;
+    const res=s.by_result||[]; const pass=(res.find(r=>r.overall_result==='PASS')||{}).count||0; const fail=(res.find(r=>r.overall_result==='FAIL')||{}).count||0; const tot=pass+fail||1;
+    p.innerHTML=`<h4>Database</h4><div class="big">${(s.total_records||0).toLocaleString()}</div><div class="sub">records · ${fmtDate(s.date_range&&s.date_range.oldest)} → ${fmtDate(s.date_range&&s.date_range.newest)}</div>
+      <div class="bar"><i style="width:${pass/tot*100}%;background:var(--pass-ink)"></i><i style="width:${fail/tot*100}%;background:var(--fail-ink)"></i></div>
+      <div class="legend"><span style="--c:var(--pass-ink)">PASS ${pass.toLocaleString()}</span><span>FAIL ${fail.toLocaleString()}</span></div>
+      <div style="margin-top:6px">${(s.by_log_type||[]).slice(0,7).map(l=>`<div class="lt"><span>${esc(l.log_type)}</span><span>${l.count.toLocaleString()}</span></div>`).join('')}</div>`;
+    p.querySelectorAll('.legend span')[0].style.cssText='--c:var(--pass-ink)';
+  }catch(e){ p.innerHTML='<div class="sub">stats unavailable</div>'; } };
+document.addEventListener('click',e=>{ if(!$('statsPop').contains(e.target)&&e.target!==$('statsBtn')) $('statsPop').classList.remove('show'); });
+
+/* ---------- keyboard ---------- */
+document.addEventListener('keydown',e=>{
+  if(e.key==='/'&&document.activeElement!==$('omni')){e.preventDefault();$('omni').focus();$('omni').select();return;}
+  if(e.key==='Escape'){ if($('statsPop').classList.contains('show')){$('statsPop').classList.remove('show');return;}
+    if($('insp').classList.contains('open')&&window.innerWidth<=820){$('insp').classList.remove('open');return;}
+    if(document.activeElement===$('omni')&&$('omni').value){$('omni').value='';routeOmni('');debouncedSearch();}else $('omni').focus(); return;}
+  if((e.key==='ArrowDown'||e.key==='ArrowUp')&&state.rows.length){
+    e.preventDefault(); let i=state.rows.findIndex(r=>r.id==state.selected);
+    i=e.key==='ArrowDown'?Math.min(state.rows.length-1,i+1):Math.max(0,i-1);
+    if(state.rows[i]){select(state.rows[i].id);const tr=[...$('rows').children][i];if(tr)tr.scrollIntoView({block:'nearest'});}}
+  if(e.key==='Enter'){ if(document.activeElement===$('omni')) pushRecent($('omni').value.trim());
+    if(state.selected) window.open(API+'/api/datasheet/'+state.selected+'?format=html','_blank'); }
 });
 
-// ---- bootstrap ----
+/* ---------- bootstrap ---------- */
 async function boot(){
-  // restore from URL
   const u=new URLSearchParams(location.search);
   if(u.get('serial')){state.serial=u.get('serial');$('omni').value=state.serial;routeOmni(state.serial);}
   else if(u.get('model')){state.model=u.get('model');$('omni').value=state.model;routeOmni(state.model);}
   else if(u.get('q')){state.q=u.get('q');$('omni').value=state.q;routeOmni(state.q);}
-  for(const k of ['result','station','logtype','from','to']) if(u.get(k)) state[k]=u.get(k);
+  for(const k of ['result','station','logtype','from','to']) if(u.get(k))state[k]=u.get(k);
+  if(u.get('sort')){state.sort=u.get('sort');state.dir=u.get('dir')||'desc';}
   state.selected=u.get('selected');
-  // filters + stats
+  renderPresets();
   try{ const f=await (await fetch(API+'/api/filters')).json();
-    $('modelList').innerHTML=(f.models||[]).map(m=>`<option value="${m.model_number}">${m.model_number} (${m.count})</option>`).join('');
-    $('fStation').innerHTML='<option value="">any station</option>'+(f.stations||[]).map(s=>`<option>${s}</option>`).join('');
-    $('fLog').innerHTML='<option value="">any log</option>'+(f.log_types||[]).map(l=>`<option>${l}</option>`).join('');
+    $('modelList').innerHTML=(f.models||[]).map(m=>`<option value="${esc(m.model_number)}">${esc(m.model_number)} (${m.count})</option>`).join('');
+    $('fStation').innerHTML='<option value="">any station</option>'+(f.stations||[]).map(s=>`<option>${esc(s)}</option>`).join('');
+    $('fLog').innerHTML='<option value="">any log</option>'+(f.log_types||[]).map(l=>`<option>${esc(l)}</option>`).join('');
   }catch(e){}
   try{ const s=await (await fetch(API+'/api/stats')).json();
-    $('ingest').textContent = (s.total_records||0).toLocaleString()+' records · newest '+fmtDate(s.date_range&&s.date_range.newest);
+    $('ingest').textContent=(s.total_records||0).toLocaleString()+' records · newest '+fmtDate(s.date_range&&s.date_range.newest);
   }catch(e){ $('ingest').textContent='stats unavailable'; }
-  $('statsBtn').onclick=async()=>{ const s=await (await fetch(API+'/api/stats')).json();
-    alert('Total: '+s.total_records.toLocaleString()+'\nResult: '+(s.by_result||[]).map(r=>r.overall_result+' '+r.count.toLocaleString()).join(' · ')
-      +'\nDates: '+fmtDate(s.date_range.oldest)+' → '+fmtDate(s.date_range.newest)
-      +'\nLog types: '+(s.by_log_type||[]).map(r=>r.log_type+' '+r.count.toLocaleString()).join(' · ')); };
-  renderPresets();
-  $('omni').focus();
-  search();
+  if(state.from)$('fFrom').value=state.from; if(state.to)$('fTo').value=state.to;
+  if(state.station)$('fStation').value=state.station; if(state.logtype)$('fLog').value=state.logtype; if(state.model)$('fModel').value=state.model;
+  $('omni').focus(); search();
 }
 boot();
 </script>