mopac-pdf v0: markdown to beautiful PDFs via digest-pinned typst

Go CLI that turns the markdown currency of this stack (Redmine notes,
Discourse posts, briefing output) into typeset PDFs: two embedded typst
templates (report with title page/TOC/headers, dense brief), front-matter
(title/subtitle/author/date/classification/template), GFM tables, and
bar charts rendered in pure Go (go-chart) from fenced chart data blocks.
Engine is a prebuilt typst 0.15.1 container pinned by digest and run
--network none; PDF bytes to stdout or -o. Exit codes 0/1/2.

All dev in docker (dev.sh/Makefile); unit tests + golden typst fixtures
plus a host-side smoke against the real engine container.

Generated with Crush

Assisted-by: Crush:glm-5.2

vendor/github.com/wcharczuk/go-chart/v2/value.go

@@ -0,0 +1,53 @@
+package chart
+
+// Value is a chart value.
+type Value struct {
+	Style Style
+	Label string
+	Value float64
+}
+
+// Values is an array of Value.
+type Values []Value
+
+// Values returns the values.
+func (vs Values) Values() []float64 {
+	values := make([]float64, len(vs))
+	for index, v := range vs {
+		values[index] = v.Value
+	}
+	return values
+}
+
+// ValuesNormalized returns normalized values.
+func (vs Values) ValuesNormalized() []float64 {
+	return Normalize(vs.Values()...)
+}
+
+// Normalize returns the values normalized.
+func (vs Values) Normalize() []Value {
+	var output []Value
+	var total float64
+
+	for _, v := range vs {
+		total += v.Value
+	}
+
+	for _, v := range vs {
+		if v.Value > 0 {
+			output = append(output, Value{
+				Style: v.Style,
+				Label: v.Label,
+				Value: RoundDown(v.Value/total, 0.0001),
+			})
+		}
+	}
+	return output
+}
+
+// Value2 is a two axis value.
+type Value2 struct {
+	Style          Style
+	Label          string
+	XValue, YValue float64
+}