Say on power's draw item which state its bar block reads, so the bar's holder can be granted it (issue 774)

i3status-rust on g14 and shanks cannot watch power.draw ("was issued: none", 148 times): its read was granted from
the bar contribution's data (shows: state, options.state; catalogue.ReadsGranted), and design 57 L3 moved the block
to an item, whose attributes said nothing of it, while ReadsGranted reads contributions alone.

Quick fix: `reads: power.draw` on i3status-rust, which grants every machine's draw instead of its own key (ADR 0260).
Thorough fix: the item says its read (shows: state, state: power.draw), and mesh-sdk's ReadsGranted grants a held
item's read as it grants a contribution's, keyed to the machine. Chose thorough; its mesh-sdk half is another
repository's, and until it lands the fault stays.

modules/power/cmd/power/templates_test.go

@@ -84,7 +84,9 @@ func TestEveryFileTakesItsTextFromATemplateOutsideTheUnpackedFiles(t *testing.T)
 
 // The bar's blocks are two items of the collection the bar places (design 57 L3, issue 781): the text i3status-rust's
 // bars hold for the battery and for the power draw, byte for byte as the bar's own template rendered them before, the
-// draw's key being the machine's own name.
+// draw's key being the machine's own name. The draw's item says the state its text reads (shows: state, state:
+// power.draw), as the bar's contribution said it before, so the bar's holder is granted this machine's key of it (the
+// sweep of 2026-10-30, issue 774: moved to an item, it said nothing, and i3status-rust was issued no read).
 func TestTheBarBlocksAreTwoItemsOfTheBarsCollection(t *testing.T) {
 	raw, err := os.ReadFile("../../module.json")
 	if err != nil {
@@ -106,19 +108,20 @@ func TestTheBarBlocksAreTwoItemsOfTheBarsCollection(t *testing.T) {
 	if len(m.Contributions) != 0 || len(m.Items) != 2 {
 		t.Fatalf("%d contributions and %d items", len(m.Contributions), len(m.Items))
 	}
-	want := []struct{ name, capability, order, template, text string }{
-		{"battery", "battery", "40", "templates/bar-battery", "[[block]]\nblock = \"battery\"\n" +
+	want := []struct{ name, capability, order, reads, template, text string }{
+		{"battery", "battery", "40", "", "templates/bar-battery", "[[block]]\nblock = \"battery\"\n" +
 			"format = \"$icon $percentage{ $time|}\"\ncharging_format = \"$icon $percentage{ $time|}\"\n" +
 			"not_charging_format = \"$icon $percentage\"\nfull_format = \"$icon $percentage\"\n" +
 			"empty_format = \"$icon $percentage\"\nmissing_format = \"\"\n\n"},
-		{"power-draw", "power-meter", "45", "templates/bar-power-draw", "[[block]]\nblock = \"custom\"\n" +
+		{"power-draw", "power-meter", "45", "power.draw", "templates/bar-power-draw", "[[block]]\nblock = \"custom\"\n" +
 			"command = \"~/.local/bin/i3status-value power.draw ${machine:name}\"\ninterval = 5\nhide_when_empty = true\n\n"},
 	}
 	for i, w := range want {
 		it := m.Items[i]
 		if it.Collection != "contribution:node-bar:block" || it.Name != w.name || it.IfCapability != w.capability ||
 			it.Template != w.template || it.Attributes["bar"] != "bottom" || it.Attributes["place"] != "status" ||
-			it.Attributes["order"] != w.order || len(it.Attributes) != 3 {
+			it.Attributes["order"] != w.order || it.Attributes["state"] != w.reads ||
+			(w.reads != "") != (it.Attributes["shows"] == "state") || len(it.Attributes) != map[bool]int{false: 3, true: 5}[w.reads != ""] {
 			t.Errorf("item %d is %+v", i, it)
 		}
 		text, err := os.ReadFile(filepath.Join("../..", w.template))

modules/power/module.json

@@ -442,7 +442,9 @@
       "attributes": {
         "bar": "bottom",
         "place": "status",
-        "order": "45"
+        "order": "45",
+        "shows": "state",
+        "state": "power.draw"
       },
       "template": "templates/bar-power-draw"
     }