fix: address multiple bugs from code review

- teardown_all.sh: replace `yes |` pipeline with `< <(yes)` process
  substitution to avoid SIGPIPE (exit 141) false failures under pipefail
- phase6_teardown.sh: extract push mirror `.id` instead of `.remote_name`
  to match the DELETE /push_mirrors/{id} API contract
- phase5_migrate_pipelines.sh: expand sed regex from `[a-z_]*` to
  `[a-z_.]*` to handle nested GitHub contexts like
  `github.event.pull_request.number`
- lib/common.sh: render_template now requires explicit variable list to
  prevent envsubst from eating Nginx variables ($host, $proxy_add_...)
- backup scripts: remove MacBook relay, use direct Unraid↔Fedora SCP;
  fix dump path to write to /data/ (mounted volume) instead of /tmp/
  (container-only); add unzip -t integrity verification
- preflight.sh: add --skip-port-checks flag for resuming with
  --start-from (ports already bound by earlier phases)
- run_all.sh: update run_step to pass extra args; use --skip-port-checks
  when --start-from > 1
- post-checks (phase4/7/9): wrap API calls in helper functions with
  >/dev/null redirection instead of passing -o /dev/null as API data
- phase8: replace GitHub archiving with [MIRROR] description marking
  and disable wiki/projects/Pages (archived repos reject push mirrors)
- restore_to_primary.sh: add require_vars for Fedora SSH variables

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

manage_runner.sh

@@ -163,13 +163,15 @@ add_docker_runner() {
   tmpfile=$(mktemp)
   export RUNNER_NAME RUNNER_LABELS RUNNER_DATA_PATH
   export GITEA_RUNNER_REGISTRATION_TOKEN="${GITEA_RUNNER_REGISTRATION_TOKEN:-}"
-  render_template "${SCRIPT_DIR}/templates/docker-compose-runner.yml.tpl" "$tmpfile"
+  render_template "${SCRIPT_DIR}/templates/docker-compose-runner.yml.tpl" "$tmpfile" \
+    '${ACT_RUNNER_VERSION} ${RUNNER_NAME} ${GITEA_INTERNAL_URL} ${GITEA_RUNNER_REGISTRATION_TOKEN} ${RUNNER_LABELS} ${RUNNER_DATA_PATH}'
   runner_scp "$tmpfile" "${RUNNER_DATA_PATH}/docker-compose.yml"
   rm -f "$tmpfile"
 
   # Render runner config
   tmpfile=$(mktemp)
-  render_template "${SCRIPT_DIR}/templates/runner-config.yaml.tpl" "$tmpfile"
+  render_template "${SCRIPT_DIR}/templates/runner-config.yaml.tpl" "$tmpfile" \
+    '${RUNNER_NAME} ${RUNNER_LABELS}'
   runner_scp "$tmpfile" "${RUNNER_DATA_PATH}/config.yaml"
   rm -f "$tmpfile"
 
@@ -246,13 +248,15 @@ add_native_runner() {
   local tmpfile
   tmpfile=$(mktemp)
   export RUNNER_NAME RUNNER_LABELS RUNNER_DATA_PATH
-  render_template "${SCRIPT_DIR}/templates/runner-config.yaml.tpl" "$tmpfile"
+  render_template "${SCRIPT_DIR}/templates/runner-config.yaml.tpl" "$tmpfile" \
+    '${RUNNER_NAME} ${RUNNER_LABELS}'
   cp "$tmpfile" "${RUNNER_DATA_PATH}/config.yaml"
   rm -f "$tmpfile"
 
   # Render launchd plist
   tmpfile=$(mktemp)
-  render_template "${SCRIPT_DIR}/templates/com.gitea.runner.plist.tpl" "$tmpfile"
+  render_template "${SCRIPT_DIR}/templates/com.gitea.runner.plist.tpl" "$tmpfile" \
+    '${RUNNER_NAME} ${RUNNER_DATA_PATH}'
   mkdir -p "$HOME/Library/LaunchAgents"
   cp "$tmpfile" "$plist_path"
   rm -f "$tmpfile"