Pin mesh-sdk 007b6fd, the release's final sdk, so the controller reads the release's manifests and composes as the group does (issue 774)

The sdk now refuses an offer that says no credential form (6b8c694, ADR 0570). So:
- the catalogue copy in testdata/beside is captured again at the release branch's catalogue 8ae8e88d, whose offers each
  say one, and the sdk's conformance events at 007b6fd, as CAPTURED asks;
- the fixtures of identity_bound_test and issued_test say the form their rows meant: pair for a login of each
  consumer's own, none for a keyless provision. No behaviour of the controller changed.

testdata/beside/mesh-catalog/modules/mesh-build-node/module.json.captured

@@ -10,7 +10,7 @@
   "state": [
     "toolchains",
     "keys",
-    "steps"
+    {"name": "steps", "ttl-seconds": 172800}, "pauses"
   ],
   "claims": [
     {
@@ -21,10 +21,22 @@
   ],
   "config": {
     "capacity": {
+      "type": "number",
+      "description": "How many asks of the Node build seat this module runs at once on this node (novox/hq ADR 0525 §5); 0 pulls nothing. It is set per node in the mesh's configuration; a node with no value builds nothing.",
+      "minimum": 0,
+      "default": 0
+    },
+    "build-hours": {
       "type": "string",
-      "description": "How many asks of the Node build seat this module runs at once on each node, as node=asks pairs separated by commas, such as shanks=3,ace=2 (novox/hq ADR 0525 §5); a node set to 0 pulls nothing, a node not named runs one at a time. The control-node and the laptop build nothing.",
-      "pattern": "|[a-z0-9_-]+=[0-9]+(,[a-z0-9_-]+=[0-9]+)*",
-      "default": "shanks=3,ace=2,g14=0,novox=0"
+      "description": "When this node may take this module's build asks: one window HH:MM-HH:MM in the node's local time (an end before its start crosses midnight, 18:00-06:00). Outside it the node takes no new step and finishes the ones it runs; an empty value builds at any hour. It is set per node in the mesh's configuration.",
+      "pattern": "|([01][0-9]|2[0-3]):[0-5][0-9]-([01][0-9]|2[0-3]):[0-5][0-9]",
+      "default": ""
+    },
+    "cores-per-step": {
+      "type": "number",
+      "description": "How many processors one Node step of this module needs (tsc, esbuild and a test runner; a median step takes 15 s). The capacity above is an upper bound: on each node the module runs at most floor(the cores of its build slice's CPU quota / this) steps at once, the quota read live from its cgroup (issue 1806), so a lowered build CPU share never starves its steps. Above 0.",
+      "minimum": 0.1,
+      "default": 2
     }
   },
   "tools": [
@@ -34,6 +46,7 @@
     "build_node_release",
     "build_node_step",
     "build_node_steps",
+    "build_node_step_end",
     "build_node_toolchains",
     "build_node_status",
     "build_node_health"
@@ -99,7 +112,7 @@
       "path": "${dir:state}/settings.json",
       "mode": "0600",
       "owner": "mesh-build-node",
-      "takes-config": ["capacity"],
+      "takes-config": ["capacity", "cores-per-step", "build-hours"],
       "merge": "json",
       "template": "files/settings.json"
     },