feat(ci): Add OpenBao and Orchestrator image builds to Woodpecker CI

Add missing Docker image builds for swarm deployment.

Changes:
- Added docker-build-openbao step to .woodpecker.yml
- Added docker-build-orchestrator step to .woodpecker.yml
- Updated docker-compose.swarm.yml to use registry images
  (git.mosaicstack.dev/mosaic/*)
- Added IMAGE_TAG variable support for versioned deployments
- Updated deploy-swarm.sh to support both registry and local images

Image tagging strategy:
- All commits: SHA tag (e.g., 658ec077)
- main branch: latest + SHA
- develop branch: dev + SHA
- git tags: version tag + SHA

Registry images:
- git.mosaicstack.dev/mosaic/postgres
- git.mosaicstack.dev/mosaic/openbao
- git.mosaicstack.dev/mosaic/api
- git.mosaicstack.dev/mosaic/orchestrator
- git.mosaicstack.dev/mosaic/web

Deployment modes:
- IMAGE_TAG=latest (default, use registry latest)
- IMAGE_TAG=dev (use registry dev tag)
- IMAGE_TAG=local (use local builds via build-images.sh)

docker-compose.swarm.yml

@@ -3,7 +3,7 @@ services:
   # PostgreSQL Database
   # ======================
   postgres:
-    image: mosaic-stack-postgres:latest
+    image: git.mosaicstack.dev/mosaic/postgres:${IMAGE_TAG:-latest}
     env_file: .env
     environment:
       POSTGRES_USER: ${POSTGRES_USER:-mosaic}
@@ -56,7 +56,7 @@ services:
   # OpenBao Secrets Vault
   # ======================
   openbao:
-    image: mosaic-stack-openbao:latest
+    image: git.mosaicstack.dev/mosaic/openbao:${IMAGE_TAG:-latest}
     env_file: .env
     environment:
       OPENBAO_ADDR: ${OPENBAO_ADDR:-http://0.0.0.0:8200}
@@ -225,7 +225,7 @@ services:
   # Mosaic API
   # ======================
   api:
-    image: mosaic-stack-api:latest
+    image: git.mosaicstack.dev/mosaic/api:${IMAGE_TAG:-latest}
     env_file: .env
     environment:
       NODE_ENV: production
@@ -268,7 +268,7 @@ services:
   # Mosaic Orchestrator
   # ======================
   orchestrator:
-    image: mosaic-stack-orchestrator:latest
+    image: git.mosaicstack.dev/mosaic/orchestrator:${IMAGE_TAG:-latest}
     env_file: .env
     user: "1000:1000"
     environment:
@@ -309,7 +309,7 @@ services:
   # Mosaic Web
   # ======================
   web:
-    image: mosaic-stack-web:latest
+    image: git.mosaicstack.dev/mosaic/web:${IMAGE_TAG:-latest}
     env_file: .env
     environment:
       NODE_ENV: production