Fix gitea-runner compatibility for deploy workflow

Mount the deploy directory at the same absolute path in the runner
container so docker compose bind mounts resolve correctly on the host
Docker daemon. Add git safe.directory config to avoid ownership errors
when the runner (root) operates on host-owned files.

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

.gitea/workflows/deploy.yaml

@@ -10,7 +10,9 @@ jobs:
         steps:
             - name: Pull changes
               working-directory: /home/adamf/deploy/web_server
-              run: git pull gitea main
+              run: |
+                  git config --global --add safe.directory /home/adamf/deploy/web_server
+                  git pull gitea main
 
             - name: Run docker compose up
               working-directory: /home/adamf/deploy/web_server