Move the scan module to brother, ADR 0467 clause 1: the code unchanged in what it does (issue 1453)

modules/brother/README.md

@@ -1,4 +1,4 @@
-# scan — scan a document, crop it, file it, say so
+# brother — scan a document, crop it, file it, say so
 
 Built for issue 1440 as novox/hq ADR 0464 decides. It scans the glass of a network scanner (any scanner that
 speaks eSCL, also called AirScan or Mopria), cuts the document out of the lid's white, files it as a one-page PDF
@@ -47,7 +47,7 @@ makes it (mode 0755) when it files the first scan.
 
 ## The event
 
-`scan.added`, on the wire `mesh.mod.scan.event.scan.added`; a consumer declares `scan.scan.added`. Its body:
+`scan.added`, on the wire `mesh.mod.brother.event.scan.added`; a consumer declares `brother.scan.added`. Its body:
 `path`, `node`, `bytes`, `sha256`, `width-mm`, `height-mm`, `resolution` (dpi, as the scanner gave it),
 `color-mode`, `cropped`, `scanned-at` (RFC 3339, UTC).
 
@@ -62,5 +62,5 @@ Each directory or archive this module declares says how it treats a file it did
 
 ## Tests
 
-The unit tests use the captured answers of a real scanner (`cmd/scan/testdata/escl`, captured 2026-10-20) served
+The unit tests use the captured answers of a real scanner (`cmd/brother/testdata/escl`, captured 2026-10-20) served
 by a test HTTP server; no test reaches a scanner.

modules/brother/cmd/brother/main.go

@@ -10,7 +10,7 @@ import (
 )
 
 func main() {
-	if err := stdio.Serve("", tools(os.Getenv("SCAN_SETTINGS"), emit, time.Now)); err != nil {
+	if err := stdio.Serve("", tools(os.Getenv("BROTHER_SETTINGS"), emit, time.Now)); err != nil {
 		fmt.Fprintln(os.Stderr, err)
 		os.Exit(1)
 	}

modules/brother/cmd/brother/manifest_test.go

@@ -86,11 +86,11 @@ func TestTheConfigReachesTheCodeThroughItsSettingsFile(t *testing.T) {
 	env := ""
 	for _, a := range m.Build.Artifacts {
 		if a["kind"] == "bundle" {
-			env, _ = a["env"].(map[string]any)["SCAN_SETTINGS"].(string)
+			env, _ = a["env"].(map[string]any)["BROTHER_SETTINGS"].(string)
 		}
 	}
 	if env != "${dir:state}/settings.json" {
-		t.Errorf("SCAN_SETTINGS = %q", env)
+		t.Errorf("BROTHER_SETTINGS = %q", env)
 	}
 	raw, err := os.ReadFile(filepath.Join("..", "..", "files", "settings.json"))
 	if err != nil {

modules/brother/cmd/brother/scan.go

@@ -9,8 +9,8 @@ import (
 	"time"
 )
 
-// EventAdded is the module's event: a scan was filed (ADR 0464). Consumers declare scan.scan.added; it
-// travels as mesh.mod.scan.event.scan.added. It names the file and never carries the image.
+// EventAdded is the module's event: a scan was filed (ADR 0464). Consumers declare brother.scan.added; it
+// travels as mesh.mod.brother.event.scan.added. It names the file and never carries the image.
 const EventAdded = "scan.added"
 
 // Emitter says an event on the bus under a message id, so a repeated publish is kept to one (ADR 0436).

modules/brother/cmd/brother/settings.go

@@ -1,4 +1,4 @@
-// Package main is the scan module's Go tools bundle (novox/hq ADR 0464, issue 1440): it scans the glass of a
+// Package main is the brother module's Go tools bundle (novox/hq ADR 0464, issue 1440): it scans the glass of a
 // network scanner over eSCL, crops the document, files it as a one-page PDF in a folder and says so on the bus.
 // A scan happens when a tool is called; the module runs no process of its own.
 package main
@@ -25,12 +25,12 @@ type Settings struct {
 	Crop bool
 }
 
-// LoadSettings reads settings.json (the file named by SCAN_SETTINGS) and lays the defaults under it. A missing
+// LoadSettings reads settings.json (the file named by BROTHER_SETTINGS) and lays the defaults under it. A missing
 // or unreadable file is an error that names it; an unset scanner or folder is Missing's to say.
 func LoadSettings(path string) (Settings, error) {
 	s := Settings{Resolution: 300, ColorMode: "color", Crop: true}
 	if path == "" {
-		return s, fmt.Errorf("SCAN_SETTINGS names no settings file: the module's config does not reach the code")
+		return s, fmt.Errorf("BROTHER_SETTINGS names no settings file: the module's config does not reach the code")
 	}
 	raw, err := os.ReadFile(path)
 	if err != nil {
@@ -71,6 +71,6 @@ func (s Settings) Missing() error {
 	if len(unset) == 0 {
 		return nil
 	}
-	return fmt.Errorf("config value %s is not set: the operator gives it with the config verb for the scan module on this node",
+	return fmt.Errorf("config value %s is not set: the operator gives it with the config verb for the brother module on this node",
 		strings.Join(unset, " and "))
 }

modules/brother/go.mod

@@ -1,4 +1,4 @@
-module scan
+module brother
 
 go 1.26.0
 

modules/brother/module.json

@@ -1,5 +1,5 @@
 {
-  "module": "scan",
+  "module": "brother",
   "version": "1",
   "emits": [
     "scan.added"
@@ -83,13 +83,13 @@
         "kind": "bundle",
         "language": "go",
         "system": "arch",
-        "from": "cmd/scan",
-        "binary": "scan",
+        "from": "cmd/brother",
+        "binary": "brother",
         "loads": [
-          "scan"
+          "brother"
         ],
         "env": {
-          "SCAN_SETTINGS": "${dir:state}/settings.json"
+          "BROTHER_SETTINGS": "${dir:state}/settings.json"
         }
       },
       {