ci: harden renovate auth and token fallback

.gitea/workflows/renovate.yml

@@ -230,27 +230,66 @@ jobs:
 
       - name: Run Renovate
         env:
-          # RENOVATE_TOKEN is the primary auth mechanism — set via repo secret.
-          RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
+          # Prefer dedicated Renovate token, then fall back to existing CI tokens.
+          RENOVATE_TOKEN_SECRET: ${{ secrets.RENOVATE_TOKEN }}
+          ACTIONS_TRIGGER_TOKEN: ${{ secrets.ACTIONS_TRIGGER_TOKEN }}
+          PACKAGE_ACCESS_TOKEN: ${{ secrets.PACKAGE_ACCESS_TOKEN }}
           RENOVATE_DRY_RUN: ${{ inputs.dry_run }}
           RENOVATE_CONFIG_FILE: renovate-config.js
+          RENOVATE_PLATFORM: gitea
+          RENOVATE_ENDPOINT: https://dogar.darkhelm.org/api/v1
           LOG_LEVEL: info
         run: |
           echo "=== Running Renovate Bot ==="
 
-          # Verify token is available
-          if [ -z "${RENOVATE_TOKEN}" ]; then
-            echo "❌ RENOVATE_TOKEN secret not configured"
-            echo "Please add a Gitea API token to repository secrets"
+          select_token() {
+            if [ -n "${RENOVATE_TOKEN_SECRET:-}" ]; then
+              echo "${RENOVATE_TOKEN_SECRET}"
+              return 0
+            fi
+            if [ -n "${ACTIONS_TRIGGER_TOKEN:-}" ]; then
+              echo "${ACTIONS_TRIGGER_TOKEN}"
+              return 0
+            fi
+            if [ -n "${PACKAGE_ACCESS_TOKEN:-}" ]; then
+              echo "${PACKAGE_ACCESS_TOKEN}"
+              return 0
+            fi
+            return 1
+          }
+
+          if ! SELECTED_TOKEN="$(select_token)"; then
+            echo "❌ No token available for Renovate authentication"
+            echo "Configure one of: RENOVATE_TOKEN, ACTIONS_TRIGGER_TOKEN, PACKAGE_ACCESS_TOKEN"
             exit 1
           fi
 
+          export RENOVATE_TOKEN="${SELECTED_TOKEN}"
+          unset SELECTED_TOKEN
+
+          # Validate token before starting Renovate to fail with actionable diagnostics.
+          AUTH_CHECK_STATUS=$(curl -sS -o /tmp/renovate-auth-check.json -w "%{http_code}" \
+            -H "Authorization: token ${RENOVATE_TOKEN}" \
+            "${RENOVATE_ENDPOINT}/user" || true)
+
+          if [ "${AUTH_CHECK_STATUS}" != "200" ]; then
+            echo "❌ Renovate token authentication preflight failed (HTTP ${AUTH_CHECK_STATUS})"
+            echo "Expected a personal access token with repo/issue read-write permissions."
+            if [ -s /tmp/renovate-auth-check.json ]; then
+              echo "Response body:"
+              cat /tmp/renovate-auth-check.json || true
+            fi
+            exit 1
+          fi
+
+          echo "✓ Renovate auth preflight passed"
+
           # Run Renovate with configuration
           if [ "${RENOVATE_DRY_RUN}" = "true" ]; then
             echo "🔍 Running in DRY-RUN mode (no changes will be made)"
           fi
 
-          renovate DarkHelm.org/plex-playlist
+          renovate --platform "${RENOVATE_PLATFORM}" --endpoint "${RENOVATE_ENDPOINT}" DarkHelm.org/plex-playlist
 
           echo "✓ Renovate execution completed"