The Hetzner VPS at 23.182.128.160 was decommissioned. Replace it
everywhere with the OVH VPS at 146.59.87.168, which was previously
the tertiary mirror.
- update.rs: drop DEFAULT_TERTIARY_MIRROR_URL, promote .168 into
the secondary slot as "Server 1 (OVH)"; tx1138 becomes Server 2.
Default mirror list shrinks from 3 to 2.
- container/registry.rs: default RegistryConfig drops .23, promotes
.168 to Server 1 / priority 0, tx1138 stays Server 2 / priority 10.
- api/rpc/package/config.rs: trusted-registry allowlist swaps .23
for .168.
- api/handler/mod.rs: app-catalog fallback URL uses .168.
- neode-ui/views/marketplace/marketplaceData.ts: REGISTRY uses .168.
- scripts/image-versions.sh: ARCHY_REGISTRY_FALLBACK uses .168.
- image-recipe/build-auto-installer-iso.sh: installer ISO registries
use .168 (both podman registries.conf and backend registries.json).
Tests updated to assert on the new 2-entry default lists (registry +
mirror). URL-parser fixture tests in update.rs retain .23 strings —
they exercise string-parsing logic, not mirror policy.
Git remotes: dropped `gitea-vps` and the .23 push URL on the `origin`
multi-push alias (not part of this commit — pure working-copy change).
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