gitea provides the package registry; the builder gets its npm credential

gitea gains the package-registry provision: serves/receives/grants, an admin
own-secret, a postgres-shaped build, and a provisioner that creates a gitea user
per consumer with the mesh-minted password and seals nothing (hq ADR 0048). The
builder takes its registry credential as an own-secret rather than a resolved
provision, because gitea-as-module needs the base to build its provisioner and so
cannot resolve before the base — a cycle the own-secret avoids.

Claude-Session: https://claude.ai/code/session_01D6qtiYU3P9jk3pnAXyAFyx

modules/builder/module.json

@@ -17,7 +17,8 @@
     "module.builder.built"
   ],
   "own-secrets": {
-    "broker": "/var/lib/mesh/builder/broker"
+    "broker": "/var/lib/mesh/builder/broker",
+    "npm-password": "/var/lib/mesh/builder/npm-password"
   },
   "resources": [
     {
@@ -37,7 +38,14 @@
       "type": "file",
       "path": "/var/lib/mesh/builder/builder.env",
       "mode": "0600",
-      "content": "MESH_BROKER_FILE=/run/mesh/broker\nMESH_NODE=${machine:name}\nMESH_REGISTRY=127.0.0.1:${bound:artifact-store:port}\nMESH_WORKSPACE=/workspace\n"
+      "content": "MESH_BROKER_FILE=/run/mesh/broker\nMESH_NODE=${machine:name}\nMESH_REGISTRY=127.0.0.1:${bound:artifact-store:port}\nMESH_PACKAGE_BINDING=/run/mesh/package-registry.json\nMESH_NPM_TOKEN_FILE=/run/mesh/npm-password\nMESH_WORKSPACE=/workspace\n"
+    },
+    {
+      "id": "package-binding",
+      "type": "file",
+      "path": "/var/lib/mesh/builder/package-registry.json",
+      "mode": "0600",
+      "content": "{\"provision\": \"package-registry\", \"from\": \"gitea\", \"at\": \"127.0.0.1\", \"as\": \"mesh-builder\", \"serves\": {\"scheme\": \"http\", \"port\": 3000, \"npm-path\": \"/api/packages/novox/npm/\"}}\n"
     },
     {
       "id": "server",
@@ -53,7 +61,9 @@
         "/var/run/docker.sock:/var/run/docker.sock"
       ],
       "restart-on": [
-        "builder-env"
+        "builder-env",
+        "package-binding",
+        "needs-npm-password"
       ]
     }
   ]