docs: add manual runner management workflow to testing documentation

start-runner.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+echo "🚀 Starting Gitea Actions Runner..."
+
+# Check if runner is already running
+if pgrep -f "act_runner daemon" > /dev/null; then
+    echo "⚠️  Runner is already running!"
+    echo "To stop it, run: ./stop-runner.sh"
+    exit 1
+fi
+
+# Start the runner in the background
+./act_runner daemon --config config.yaml &
+RUNNER_PID=$!
+
+# Save PID to file for easy stopping
+echo $RUNNER_PID > .runner.pid
+
+echo "✅ Runner started with PID: $RUNNER_PID"
+echo "📝 Logs will be written to: runner.log"
+echo ""
+echo "To stop the runner, run: ./stop-runner.sh"
+echo "To check status, run: ./status-runner.sh"