Mark hub-core publish_check pass and refresh federation index

Gitea raw URLs for hub-core now return HTTP 200 after package and docs push;
roster counts 48/60 publish pass with 12 blockers remaining.

registry/federation/local-repo-roster.yaml

@@ -10,8 +10,8 @@ summary:
   pending: 0
   with_reuse_surface_seed: 8
   hub_registered: 60
-  publish_pass: 47
-  publish_fail: 13
+  publish_pass: 48
+  publish_fail: 12
   publish_sweep: '2026-06-16'
 repos:
 - slug: activity-core
@@ -190,9 +190,8 @@ repos:
   seed_from_reuse_surface: false
   seed_capability_ids: []
   hub_registered: true
-  publish_check: fail
+  publish_check: pass
   batch: B02
-  publish_note: Gitea repo missing; push-to-create disabled; T09 sweep HTTP 404
 - slug: human-resources
   path: /home/worsch/human-resources
   status: established

registry/indexes/federated.yaml

@@ -73,6 +73,10 @@ sources:
   count: 0
   url: https://gitea.coulomb.social/coulomb/helix-forge/raw/main/registry/indexes/capabilities.yaml
   cache: registry/federation/cache/helix-forge.yaml
+- repo: hub-core
+  count: 0
+  url: https://gitea.coulomb.social/coulomb/hub-core/raw/main/registry/indexes/capabilities.yaml
+  cache: registry/federation/cache/hub-core.yaml
 - repo: human-resources
   count: 0
   url: https://gitea.coulomb.social/coulomb/human-resources/raw/main/registry/indexes/capabilities.yaml