ci: a runner label names the platform, not the org

hanzo-build-linux-amd64, lux-build-linux-amd64, zoo-build-linux-amd64 and
every other org-prefixed spelling all meant the same machine. Which org a
job belongs to does not change which host can build it, so the org bought
one pool name per org per arch and each could go stale on its own -- the
evo host alone answered to fourteen names for one label.

One vocabulary now: linux-amd64, linux-arm64, macos-arm64, win-amd64. The
generic labels every plain workflow uses (ubuntu-latest, self-hosted) are
untouched, so naive CI keeps working.

Co-authored-by: Hanzo Dev <[email protected]>

.hanzo/workflows/cicd.yml

@@ -1,9 +1,9 @@
 # ~7-line canonical caller — all real config lives in /hanzo.yml.
 #
 # This repo declared a gate and had nowhere to run it. `.github/workflows/cicd.yml`
-# imports the same pipeline, but its default label `hanzo-build-linux-amd64` is
+# imports the same pipeline, but its default label `linux-amd64` is
 # served on github.com by nothing: the ARC pool that last ran it there
-# (hanzo-build-linux-amd64-lfpvh-runner-vt7lh, hanzoai/finance, 133s) was retired,
+# (linux-amd64-lfpvh-runner-vt7lh, hanzoai/finance, 133s) was retired,
 # and every caller since has queued for 86402s — 24h exactly, GitHub's queue
 # timeout — and reported "cancelled". A gate that cannot be scheduled is not a
 # gate, and a red X that says "cancelled" reads like an infrastructure hiccup

.hanzo/workflows/publish-pypi.yml

@@ -1,5 +1,5 @@
 name: Publish PyPI
-# Releases run on the Hanzo git-runner fleet (`hanzo-build-linux-amd64`) from
+# Releases run on the Hanzo git-runner fleet (`linux-amd64`) from
 # git.hanzo.ai, which is canonical; GitHub is a downstream mirror. There is no
 # .github counterpart to this file — one lane, one place.
 #
@@ -30,7 +30,7 @@ concurrency:
 jobs:
   publish:
     name: Build and publish
-    runs-on: [hanzo-build-linux-amd64]
+    runs-on: [linux-amd64]
     steps:
       - uses: actions/checkout@v4
         with:

.hanzo/workflows/sync-from-github.yml

@@ -23,7 +23,7 @@ concurrency:
   cancel-in-progress: false
 jobs:
   ff-main:
-    runs-on: [hanzo-build-linux-amd64]
+    runs-on: [linux-amd64]
     steps:
       - name: Checkout main (full history for the ancestry check)
         uses: actions/checkout@v4