feat(scripts): realign Test Run with runtime API, add anonymous-object calls and instance binding

The Test Run sandbox and Monaco analysis modelled a script API that had
drifted from the site runtime's ScriptGlobals, so real scripts failed to
compile in Test Run. Realign both to the runtime surface
(Instance/Scripts/ExternalSystem/Attributes/Children/Parent) and drop the
duplicate ScriptHost stub so the two cannot diverge again.

- Script calls (Scripts.CallShared, Instance.CallScript, Route.To().Call)
  accept an anonymous object instead of a hand-built dictionary, via a
  shared ScriptArgs normalizer; existing dictionary calls still compile.
- Test Run can optionally bind to a deployed instance, so Instance/
  Attributes/CallScript route to it cross-site; adds site-side
  RouteToGetAttributes/RouteToSetAttributes handlers.
- Adds Test Run panels to the API method and template script editors.
- Fixes the TestDatabaseQuery seed script, which queried a table that
  never existed.

Also commits unrelated in-progress work already in the tree: the health
monitoring report loop, site streaming changes, and the Admin/Design
data-connection and SMTP page reorganization.

infra/reseed.sh

@@ -0,0 +1,124 @@
+#!/usr/bin/env bash
+# Full reseed of the ScadaLink test cluster.
+#
+# Tears down infra + app containers, drops the MSSQL volume, brings
+# everything back, lets EF Core migrations create the schema, replays
+# infra/mssql/seed-config.sql for templates/scripts/data-connections, and
+# re-seeds sites via docker/seed-sites.sh.
+#
+# Usage:
+#   infra/reseed.sh                         Full reseed (default seed file)
+#   infra/reseed.sh --seed PATH             Replay a different seed SQL
+#   infra/reseed.sh --skip-teardown         Replay seed against running stack
+#
+# Prerequisites:
+#   - Docker / OrbStack running
+#   - Python 3 with pymssql (used by infra/tools/mssql_tool.py + dump_seed.py)
+#   - Built scadalink:latest image (docker/build.sh — deploy.sh runs it)
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+SEED_FILE="$SCRIPT_DIR/mssql/seed-config.sql"
+SKIP_TEARDOWN=false
+MGMT_URL="http://localhost:9000"
+
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --seed)
+      SEED_FILE="$2"
+      shift 2
+      ;;
+    --skip-teardown)
+      SKIP_TEARDOWN=true
+      shift
+      ;;
+    -h|--help)
+      sed -n '2,16p' "$0" | sed 's/^# \{0,1\}//'
+      exit 0
+      ;;
+    *)
+      echo "Unknown option: $1" >&2
+      exit 1
+      ;;
+  esac
+done
+
+if [ ! -f "$SEED_FILE" ]; then
+  echo "Seed file not found: $SEED_FILE" >&2
+  exit 1
+fi
+
+echo "=== ScadaLink Reseed ==="
+echo "Seed file: $SEED_FILE"
+echo ""
+
+if ! $SKIP_TEARDOWN; then
+  echo "--- Stage 1/6: tear down application containers ---"
+  "$PROJECT_ROOT/docker/teardown.sh"
+
+  echo ""
+  echo "--- Stage 2/6: wipe site SQLite state ---"
+  shopt -s nullglob
+  for d in "$PROJECT_ROOT"/docker/site-*/data; do
+    rm -rf "$d"/*
+    echo "  cleared $d"
+  done
+  shopt -u nullglob
+
+  echo ""
+  echo "--- Stage 3/6: tear down infra (drops MSSQL volume) ---"
+  (cd "$SCRIPT_DIR" && docker compose down -v)
+
+  echo ""
+  echo "--- Stage 4/6: bring infra back up ---"
+  (cd "$SCRIPT_DIR" && docker compose up -d)
+
+  echo "  Waiting for MSSQL to accept connections..."
+  until docker exec scadalink-mssql /opt/mssql-tools18/bin/sqlcmd \
+        -S localhost -U sa -P 'ScadaLink_Dev1#' -C -Q "SELECT 1" >/dev/null 2>&1; do
+    sleep 2
+  done
+  echo "  MSSQL ready."
+
+  echo "  Waiting for setup.sql to create ScadaLinkConfig..."
+  until docker exec scadalink-mssql /opt/mssql-tools18/bin/sqlcmd \
+        -S localhost -U sa -P 'ScadaLink_Dev1#' -C \
+        -Q "IF DB_ID('ScadaLinkConfig') IS NULL THROW 50000, 'not ready', 1;" \
+        >/dev/null 2>&1; do
+    sleep 2
+  done
+  echo "  ScadaLinkConfig present."
+
+  echo ""
+  echo "--- Stage 5/6: deploy central + site nodes ---"
+  "$PROJECT_ROOT/docker/deploy.sh"
+fi
+
+echo ""
+echo "--- Stage 6a/6: wait for central cluster /health/ready ---"
+until curl -fs "$MGMT_URL/health/ready" >/dev/null 2>&1; do
+  sleep 2
+done
+echo "  Central cluster ready (EF Core migrations applied)."
+
+echo ""
+echo "--- Stage 6b/6: seed sites (CLI) ---"
+# Sites must exist before the design seed: DataConnections.SiteId FKs to Sites.
+"$PROJECT_ROOT/docker/seed-sites.sh"
+
+echo ""
+echo "--- Stage 6c/6: replay seed SQL ---"
+docker exec -i scadalink-mssql /opt/mssql-tools18/bin/sqlcmd \
+    -S localhost -U sa -P 'ScadaLink_Dev1#' -C -d ScadaLinkConfig -b < "$SEED_FILE"
+echo "  Seed replayed."
+
+echo ""
+echo "=== Reseed complete ==="
+echo ""
+echo "Verify:"
+echo "  $PROJECT_ROOT/src/ScadaLink.CLI/bin/Debug/net*/ScadaLink.CLI --url $MGMT_URL --username multi-role --password password template list"
+echo ""
+echo "To refresh the seed file from the current DB state:"
+echo "  python3 $SCRIPT_DIR/tools/dump_seed.py --output $SEED_FILE"