ci: revert to ubuntu-latest runners (hanzo-build offline)

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   test-api:
-    runs-on: hanzo-build
+    runs-on: ubuntu-latest
     services:
       postgres:
         image: postgres:16-alpine
@@ -61,7 +61,7 @@ jobs:
           .venv/bin/pytest -v --tb=short || echo "No tests yet"
 
   test-web:
-    runs-on: hanzo-build
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
 
@@ -84,7 +84,7 @@ jobs:
         run: pnpm run build
 
   e2e-test:
-    runs-on: hanzo-build
+    runs-on: ubuntu-latest
     needs: [test-api, test-web]
     services:
       postgres:

.github/workflows/docker-release.yml

@@ -19,7 +19,7 @@ concurrency:
 jobs:
   # Gate: only proceed if CI passed (skip check for tags/manual)
   gate:
-    runs-on: hanzo-build
+    runs-on: ubuntu-latest
     if: >-
       github.event_name != 'workflow_run' ||
       github.event.workflow_run.conclusion == 'success'
@@ -53,7 +53,7 @@ jobs:
   # Deploy to bootnode-k8s + lux-k8s (separate DOKS clusters)
   # Secrets fetched from Hanzo KMS at runtime via Universal Auth
   deploy:
-    runs-on: hanzo-k8s
+    runs-on: ubuntu-latest
     needs: [api, web]
     if: >-
       github.event_name != 'workflow_run' ||