The runner's process is judged by its unit, not by its own tool runner_health

A process is never judged by a tool of its own; the pipeline runner's health is now the unit, as every other process of
mesh-delivery declares. runner_health stays a tool.

Builds: design 47 G A-305; ADR 0227 rule 8, ADR 0240 rule 2

Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h

modules/mesh-delivery-pipeline/manifest_test.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"os"
 	"slices"
+	"strings"
 	"testing"
 
 	seat "git.novox.be/novox/mesh-delivery/modules/mesh-delivery-contracts/go/seats/meshpipelinerunner"
@@ -107,8 +108,9 @@ func TestManifest(t *testing.T) {
 		{"uses operator-channel", equalSets(m.Uses, []string{"operator-channel"})},
 		// RN25 (§539): the runner's tools carry the prefix runner_.
 		{"first-view tools", equalSets(m.Tools, []string{"runner_first_views", "runner_first_view_again", "runner_health", "runner_waits", "runner_release", "runner_unlogged", "runner_unlogged_append"})},
-		// RN25 (§468, §76): the health check, run outside the process, is the tool runner_health.
-		{"health is runner_health", healthTool(raw) == "tool runner_health"},
+		// A-305 (ADR 0227 rule 8, ADR 0240 rule 2): the process is judged by its unit, as every process of mesh-delivery,
+		// never by a tool of its own; runner_health stays a tool.
+		{"health is the unit", healthTool(raw) == "unit"},
 		// RN1/AC5 (§95, §130): the new assigner is delivered before the runner.
 		{"program needs the assigner's program", slices.Equal(program.Needs, []string{"mesh-delivery-assigner:program"})},
 	}
@@ -145,6 +147,7 @@ func TestNoVerbNamesItsCallers(t *testing.T) {
 }
 
 // healthTool is the process resource's health kind and tool.
+// healthTool is the process's health, its kind and its tool when it names one.
 func healthTool(raw []byte) string {
 	var m struct {
 		Resources []struct {
@@ -160,7 +163,7 @@ func healthTool(raw []byte) string {
 	}
 	for _, r := range m.Resources {
 		if r.Type == "process" {
-			return r.Health.Kind + " " + r.Health.Tool
+			return strings.TrimSpace(r.Health.Kind + " " + r.Health.Tool)
 		}
 	}
 	return ""

modules/mesh-delivery-pipeline/module.json

@@ -180,8 +180,7 @@
       },
       "user": "mesh-delivery-pipeline",
       "health": {
-        "kind": "tool",
-        "tool": "runner_health"
+        "kind": "unit"
       }
     }
   ],