Compact C-APDU detail rows; drop duplicated Data hex

- Pair CLA+INS and P1+P2 into single rows (halves the header rows
  per C-APDU): "· CLA, INS  00 — UICC, A4 — SELECT".
- Skip the " — desc" suffix when the parser's desc merely repeats
  the hex (generic Data fields showed "6F46 — 6F46").
- Restore the implied-CLA annotation on the C-APDU title row (was
  dead code behind an operator-precedence bug).

Version 1.20.2, SW cache simtrace-analyser-v30.

frontend/index.html

@@ -1277,14 +1277,33 @@ function cmdRows(cmd) {
                         const kids = apdu.children || [];
                         const insKid = kids.find(k => k.label === 'INS');
                         const name = insKid ? (insKid.desc || '') : apdu.label;
-                        rows.push(['C-APDU #' + n + ' — ' + (name || apdu.label),
-                            apdu.hex || '' + (apdu.label === 'APDU (implied CLA)' ? '  (implied CLA)' : '')]);
+                        rows.push(['C-APDU #' + n + ' — ' + (name || apdu.label) +
+                            (apdu.label.includes('implied CLA') ? ' (implied CLA)' : ''),
+                            apdu.hex || '']);
+                        // Compact layout: pair CLA+INS and P1+P2; skip a
+                        // desc that merely repeats the hex value.
+                        const fmtKid = k => {
+                            let v = k.hex || '';
+                            if (k.desc && k.desc !== k.hex) v += ' — ' + k.desc;
+                            return v;
+                        };
+                        const byLabel = {};
+                        for (const k of kids) byLabel[k.label] = k;
+                        const pairs = [['CLA', 'INS'], ['P1', 'P2']];
+                        const done = new Set();
+                        for (const [a, b] of pairs) {
+                            if (byLabel[a] && byLabel[b]) {
+                                rows.push(['· ' + a + ', ' + b,
+                                    fmtKid(byLabel[a]) + ', ' + fmtKid(byLabel[b])]);
+                                done.add(a);
+                                done.add(b);
+                            }
+                        }
                         for (const k of kids) {
-                            rows.push(['· ' + k.label,
-                                (k.hex || '') + (k.desc ? ' — ' + k.desc : '')]);
+                            if (done.has(k.label)) continue;
+                            rows.push(['· ' + k.label, fmtKid(k)]);
                             if (k.children) for (const c of k.children) {
-                                rows.push(['· · ' + c.label,
-                                    (c.hex || '') + (c.desc ? ' — ' + c.desc : '')]);
+                                rows.push(['· · ' + c.label, fmtKid(c)]);
                             }
                         }
                     }
@@ -2465,7 +2484,7 @@ function onFilterChange() {
 }
 
 // ──────────────────── Versioning ────────────────────
-const PWA_VERSION = '1.20.1';
+const PWA_VERSION = '1.20.2';
 const MIN_SERVER_VERSION = '1.0.0';
 
 function parseVersion(v) {