placement, line drawing, and price display fixes (inverted test)

src/components/LinePrice.vue

@@ -17,13 +17,17 @@ const props = defineProps(['base', 'quote', 'm', 'b', 'isMin', 'showBtn', 'buy']
 const s = useStore()
 
 
-const price = computed(()=>props.m === 0 ? props.b : props.b + props.m * s.clock)
+const price = computed(()=>{
+  if (props.m === 0)
+    return props.b === 0 ? null : props.b
+  console.log('raw line price', props.b + props.m * s.clock)
+  return props.b + props.m * s.clock
+})
 
 const description = computed(()=>{
-  // console.log('tranche line', isMin, b, m)
   if( props.m !== 0 )
     return 'diagonal'
-  return props.isMin === props.buy ? 'dont-chase' : 'limit'
+  return props.isMin ? 'limit' : 'dont-chase'
 })