fix(interception): enforce StrongBox op limit for software-generated keys

trackAndEnforceOpLimit was only called in the Domain.KEY_ID not-found
path, so software-generated keys (found via Domain.APP) bypassed the
STRONGBOX_MAX_CONCURRENT_OPS=4 limit entirely. DuckDetector's concurrent
signing handles test created 24+ operations that all succeeded via LRU
pruning instead of being rejected with TOO_MANY_OPERATIONS (-29).

app/src/main/java/org/matrix/TEESimulator/interception/keystore/shim/KeyMintSecurityLevelInterceptor.kt

@@ -267,6 +267,8 @@ class KeyMintSecurityLevelInterceptor(
             }
         }
 
+        trackAndEnforceOpLimit(callingUid, txId)?.let { return it }
+
         SystemLogger.info("[TX_ID: $txId] Creating SOFTWARE operation for uid=$callingUid.")
 
         val params = data.createTypedArray(KeyParameter.CREATOR)!!