fix(ci): set PATH in deploy job so docker binary is found

act runner (host mode) inherits a minimal PATH from the process
environment — docker is not found even though it is installed.
Explicitly include all standard locations plus /snap/bin.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/ci-cd.yml

@@ -266,6 +266,10 @@ jobs:
   deploy:
     name: "Deploy · all services"
     runs-on: self-hosted
+    env:
+      # act runner (host mode) starts with a minimal PATH — extend it so
+      # docker (/usr/bin or /usr/local/bin) and snap packages are found.
+      PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
     needs:
       - api-build
       - admin-api-build