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/parse.go

@@ -0,0 +1,40 @@
+package chart
+
+import (
+	"strconv"
+	"strings"
+	"time"
+)
+
+// ParseFloats parses a list of floats.
+func ParseFloats(values ...string) ([]float64, error) {
+	var output []float64
+	var parsedValue float64
+	var err error
+	var cleaned string
+	for _, value := range values {
+		cleaned = strings.TrimSpace(strings.Replace(value, ",", "", -1))
+		if cleaned == "" {
+			continue
+		}
+		if parsedValue, err = strconv.ParseFloat(cleaned, 64); err != nil {
+			return nil, err
+		}
+		output = append(output, parsedValue)
+	}
+	return output, nil
+}
+
+// ParseTimes parses a list of times with a given format.
+func ParseTimes(layout string, values ...string) ([]time.Time, error) {
+	var output []time.Time
+	var parsedValue time.Time
+	var err error
+	for _, value := range values {
+		if parsedValue, err = time.Parse(layout, value); err != nil {
+			return nil, err
+		}
+		output = append(output, parsedValue)
+	}
+	return output, nil
+}