fix(ci): use Gitea container IP for checkout in claude-dev workflow

Replaces 'gitea:3000' with '172.21.0.4:3000' to bypass DNS
resolution issues in act job containers. Also removed --dns
override from runner-config.yaml which was breaking Docker's
embedded DNS and container name resolution.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.gitea/workflows/deploy-claude-dev-dev.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Checkout repository
         run: |
           if [ ! -d .git ]; then
-            git clone --branch "${GITHUB_REF_NAME}" --depth=1 "http://gitea:3000/${GITHUB_REPOSITORY}.git" .
+            git clone --branch "${GITHUB_REF_NAME}" --depth=1 "http://172.21.0.4:3000/${GITHUB_REPOSITORY}.git" .
           fi
 
       - name: Resolve image tags