js-on-sx: obj destructure rename + rest + nested tolerance

Pattern {key: local-name} emits ("rename" key local). Transpile
emits (define local (js-get-prop tmp key)).

Rest in obj pattern stubs (no supported), nested {} and [] treated
as holes.

442/444 unit (+2), 148/148 slice unchanged.

lib/js/test.sh

@@ -1135,6 +1135,12 @@ cat > "$TMPFILE" << 'EPOCHS'
 (epoch 3101)
 (eval "(js-eval \"var [h, ...tl] = [1,2,3,4]; tl.join(',')\")")
 
+;; ── Phase 11.destruct3: rename in obj pattern ──────────────────
+(epoch 3200)
+(eval "(js-eval \"var {aa: x1} = {aa: 100}; x1\")")
+(epoch 3201)
+(eval "(js-eval \"var {aa: x2, bb: y2} = {aa:1, bb:2}; x2+y2\")")
+
 EPOCHS
 
 
@@ -1750,6 +1756,10 @@ check 3003 "sort reverse"                   '"3,2,1"'
 check 3100 "rest arr length"               '3'
 check 3101 "rest arr join"                 '"2,3,4"'
 
+# ── Phase 11.destruct3 ────────────────────────────────────────
+check 3200 "obj rename"                    '100'
+check 3201 "obj multi rename"              '3'
+
 TOTAL=$((PASS + FAIL))
 if [ $FAIL -eq 0 ]; then
   echo "✓ $PASS/$TOTAL JS-on-SX tests passed"