ci: stop treating registry host as secret

.woodpecker-base.yml

@@ -10,8 +10,7 @@ steps:
   - name: build-base-image
     image: woodpeckerci/plugin-docker-buildx:5.0.0
     settings:
-      registry:
-        from_secret: REGISTRY_HOSTPORT
+      registry: registry.nxtgauge.com
       repo: nxtgauge-rust-base
       context: .
       dockerfile: Dockerfile.base

.woodpecker-dockerhub.yml

@@ -87,8 +87,7 @@ steps:
   - name: build-docker
     image: woodpeckerci/plugin-docker-buildx:5.0.0
     settings:
-      registry:
-        from_secret: REGISTRY_HOSTPORT
+      registry: registry.nxtgauge.com
       repo: nxtgauge-rust-${SERVICE}
       dockerfile: Dockerfile.binary
       build_args:

.woodpecker.yml

@@ -29,8 +29,7 @@ steps:
   - name: build-and-push
     image: registry.nxtgauge.com/docker:28-cli
     environment:
-      REGISTRY_HOSTPORT:
-        from_secret: REGISTRY_HOSTPORT
+      REGISTRY_HOSTPORT: registry.nxtgauge.com
       REGISTRY_USERNAME:
         from_secret: REGISTRY_USERNAME
       REGISTRY_PASSWORD:
@@ -52,8 +51,7 @@ steps:
   - name: build-and-push-migrate
     image: registry.nxtgauge.com/docker:28-cli
     environment:
-      REGISTRY_HOSTPORT:
-        from_secret: REGISTRY_HOSTPORT
+      REGISTRY_HOSTPORT: registry.nxtgauge.com
       REGISTRY_USERNAME:
         from_secret: REGISTRY_USERNAME
       REGISTRY_PASSWORD:

.woodpecker/README.md

@@ -4,10 +4,9 @@ The following Woodpecker secrets are required for CI/CD pipelines:
 
 | Secret Name          | Purpose                                                        |
 | -------------------- | -------------------------------------------------------------- |
-| `REGISTRY_HOSTPORT`  | Registry host:port (e.g., `registry.nxtgauge.com`)             |
 | `REGISTRY_USERNAME`  | Registry username for authentication                           |
 | `REGISTRY_PASSWORD`  | Registry password/token for authentication                     |
 
 ## Usage
 
-All build/push steps use these secrets via `from_secret:` references. No credentials are hardcoded in pipeline files.
+Build/push steps use `REGISTRY_USERNAME` and `REGISTRY_PASSWORD` via `from_secret:` references.

README.md

@@ -20,7 +20,6 @@ See `docs/MIGRATION_MASTER_PLAN.md` for full staged plan.
 ## CI (Woodpecker)
 
 Required secrets:
-- `REGISTRY_HOSTPORT`
 - `REGISTRY_USERNAME`
 - `REGISTRY_PASSWORD`