refactor: scrub residual ScadaLink refs → ScadaBridge (env vars, config keys, assembly name, SQL login)

Renames the 13 SCADALINK_* runtime env vars → SCADABRIDGE_*, the ScadaLink__
.NET config keys → ScadaBridge__, the stale ScadaLink.Host.exe assembly name
→ ZB.MOM.WW.ScadaBridge.Host.exe, the scadalink_app SQL login → scadabridge_app,
and residual identifiers/comments/docs. Migration records (prior rename
tooling/design, DB-rename helper, this scrub script) carved out.

Adds tools/scrub-scadalink-refs.sh.

tools/scrub-scadalink-refs.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+# One-time scrub of residual ScadaLink/scadalink references → ScadaBridge.
+# Operates on git-tracked TEXT files only (git grep -I skips binaries),
+# minus carve-out migration records whose before→after meaning must survive.
+# Substitutions are applied most-specific-first so a broad rule cannot
+# double-replace an earlier result. Idempotent: re-running is a no-op.
+set -euo pipefail
+cd "$(git rev-parse --show-toplevel)"
+
+# Carve-outs (migration records): prior rename tooling/design, the DB-rename
+# helper, this script itself, and the rename design + plan docs (which document
+# the old→new mapping and would be self-corrupted by the substitution).
+EXCLUDES_RE='^(tools/rename-to-scadabridge\.sh|tools/scrub-scadalink-refs\.sh|docker/rename-databases\.sh|docs/plans/2026-05-28-scadabridge-rename-design\.md|docs/plans/2026-05-31-folder-repo-rename-scadabridge-design\.md|docs/plans/2026-05-31-folder-repo-rename-scadabridge-plan\.md)$'
+
+files=()
+while IFS= read -r f; do
+  [[ "$f" =~ $EXCLUDES_RE ]] && continue
+  files+=("$f")
+done < <(git grep -liI 'scadalink' -- .)
+
+if [[ ${#files[@]} -eq 0 ]]; then
+  echo "No files to scrub."
+  exit 0
+fi
+
+printf 'Scrubbing %d file(s):\n' "${#files[@]}"
+printf '  %s\n' "${files[@]}"
+
+sed -i '' \
+  -e 's/ScadaLink\.Host\.exe/ZB.MOM.WW.ScadaBridge.Host.exe/g' \
+  -e 's/ScadaLink__/ScadaBridge__/g' \
+  -e 's/SCADALINK_/SCADABRIDGE_/g' \
+  -e 's/scadaLinkVersion/scadaBridgeVersion/g' \
+  -e 's/scadalink_app/scadabridge_app/g' \
+  -e 's/ScadaLink/ScadaBridge/g' \
+  -e 's/scadalink/scadabridge/g' \
+  "${files[@]}"
+
+echo "Done."