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tests/graph-aggregation-fallback-trial.regression-1.sh

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+#!/bin/bash
+# Regression: no-new-dependency aggregation fallback browser performance trial
+
+set -euo pipefail
+
+REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+
+artifact_dir="${GRAPH_AGGREGATION_TRIAL_ARTIFACT_DIR:-}"
+if [ -z "$artifact_dir" ]; then
+  artifact_dir="$(mktemp -d)"
+fi
+mkdir -p "$artifact_dir"
+
+npm run build -w @llm-wiki/graph-engine > /dev/null 2>&1
+
+playwright_node_path="${GRAPH_TRIAL_PLAYWRIGHT_NODE_PATH:-}"
+if [ -z "$playwright_node_path" ]; then
+  playwright_node_path="$(
+    node -e 'const path=require("path"); try { console.log(path.dirname(path.dirname(require.resolve("playwright/package.json")))); } catch { process.exit(1); }' 2>/dev/null || true
+  )"
+fi
+if [ -z "$playwright_node_path" ] || [ ! -d "$playwright_node_path/playwright" ]; then
+  echo "ERROR: Playwright is not installed locally. Install Playwright for this checkout, or set GRAPH_TRIAL_PLAYWRIGHT_NODE_PATH." >&2
+  exit 1
+fi
+
+chrome_executable="${GRAPH_AGGREGATION_TRIAL_CHROME_EXECUTABLE:-}"
+if [ -z "$chrome_executable" ]; then
+  candidate="$(
+    NODE_PATH="$playwright_node_path" node -e 'const { chromium } = require("playwright"); console.log(chromium.executablePath())'
+  )"
+  if [ -x "$candidate" ]; then
+    chrome_executable="$candidate"
+  elif [ -x "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome" ]; then
+    chrome_executable="/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"
+  fi
+fi
+
+cd "$REPO_ROOT"
+NODE_PATH="$playwright_node_path" \
+GRAPH_AGGREGATION_TRIAL_ARTIFACT_DIR="$artifact_dir" \
+GRAPH_AGGREGATION_TRIAL_CHROME_EXECUTABLE="$chrome_executable" \
+node --import tsx tests/browser/graph-aggregation-fallback-trial.ts
+
+node tests/browser/validate-graph-trial-result.mjs "$artifact_dir/aggregation-fallback-trial-results.json"
+echo "PASS: aggregation fallback performance trial ($artifact_dir/aggregation-fallback-trial-results.json)"