Fix config file folder

.gitea/workflows/deploy.yml

@@ -27,6 +27,11 @@ jobs:
         shell: bash
         run: |
           set -euo pipefail
+          fail() {
+            printf '::error::%s\n' "$*" >&2
+            exit 1
+          }
+          printf 'Runner account: %s\nDeployment directory: %s\n' "$(id -un)" "$DEPLOY_PATH"
           command -v python3
           command -v rsync
           command -v sudo
@@ -34,8 +39,9 @@ jobs:
           command -v flock
           command -v curl
           python3 -c 'import sys, tomllib; assert sys.version_info >= (3, 11)'
-          test -d "$DEPLOY_PATH"
-          test -w "$DEPLOY_PATH"
+          test -d "$DEPLOY_PATH" || fail "Deployment directory does not exist: $DEPLOY_PATH"
+          test -w "$DEPLOY_PATH" || fail "Deployment directory is not writable by $(id -un): $DEPLOY_PATH"
+          test -r "$DEPLOY_PATH/config.toml" || fail "Config is missing or unreadable by $(id -un): $DEPLOY_PATH/config.toml. Deployment preserves this file; configure it on the Pi."
           python3 - <<'PY'
           import os
           from pathlib import Path
@@ -44,12 +50,9 @@ jobs:
           if checkout == deployment or checkout in deployment.parents or deployment in checkout.parents:
               raise SystemExit('The runner checkout and deployment directory must not overlap')
           PY
-          test -r /etc/solar-relay/config.toml
-          cmp deploy/solar-relay.service /etc/systemd/system/solar-relay.service || {
-            echo 'Install the updated deploy/solar-relay.service and run systemctl daemon-reload first.'
-            exit 1
-          }
-          sudo -n -l "$(command -v systemctl)" restart "$SERVICE" >/dev/null
+          test -r /etc/systemd/system/solar-relay.service || fail "Collector service unit is missing. Install deploy/solar-relay.service as /etc/systemd/system/solar-relay.service and run systemctl daemon-reload once."
+          cmp deploy/solar-relay.service /etc/systemd/system/solar-relay.service || fail "Installed collector unit differs from deploy/solar-relay.service. Install the updated unit and run systemctl daemon-reload."
+          sudo -n -l "$(command -v systemctl)" restart "$SERVICE" >/dev/null || fail "$(id -un) needs passwordless sudo for $(command -v systemctl) restart $SERVICE."
 
       - name: Create isolated test environment
         run: |