feat: prepare EvoScientist 0.3.0

Add bounded document ingestion, controlled web search, recoverable session support, subagent timeouts, and the native sandbox runtime contract. Unify package versioning and add release-focused regression coverage.

start-langgraph.sh

@@ -7,6 +7,7 @@ LANGGRAPH_CONFIG="${PROJECT_DIR}/EvoScientist/langgraph_dev/langgraph.json"
 HOST="${EVOSCIENTIST_LANGGRAPH_HOST:-127.0.0.1}"
 PORT="${EVOSCIENTIST_LANGGRAPH_DEV_PORT:-3076}"
 WEB_ENV="${PROJECT_DIR}/../Ai4Sci-Web/.env"
+N_JOBS="${EVOSCIENTIST_LANGGRAPH_JOBS_PER_WORKER:-6}"
 
 if [[ ! -x "${PROJECT_DIR}/.venv/bin/langgraph" ]]; then
     echo "LangGraph executable not found: ${PROJECT_DIR}/.venv/bin/langgraph" >&2
@@ -16,6 +17,26 @@ fi
 
 cd "${PROJECT_DIR}"
 
+# Ask before stopping the process listening on PORT. Matching every connection
+# would also terminate Gateway while it is connected to this Runtime.
+PIDS="$(lsof -tiTCP:"${PORT}" -sTCP:LISTEN 2>/dev/null || true)"
+if [[ -n "${PIDS}" ]]; then
+    echo "Port ${PORT} is already in use by PID(s): ${PIDS}" >&2
+    ANSWER=""
+    read -r -p "Kill the process(es) using port ${PORT}? [y/N] " ANSWER || true
+    case "${ANSWER}" in
+        [yY]|[yY][eE][sS])
+            echo "Killing process(es) on port ${PORT}: ${PIDS}"
+            kill ${PIDS}
+            sleep 1
+            ;;
+        *)
+            echo "LangGraph not started; process(es) on port ${PORT} were left running." >&2
+            exit 1
+            ;;
+    esac
+fi
+
 # The Web Gateway always supplies a verified conversation workspace scope.
 export EVOSCIENTIST_DEPLOY_MODE="${EVOSCIENTIST_DEPLOY_MODE:-full}"
 export EVOSCIENTIST_WORKSPACE_DIR="${EVOSCIENTIST_WORKSPACE_DIR:-${PROJECT_DIR}/../.ai4sci/workspace}"
@@ -27,4 +48,4 @@ exec uv run --env-file "${WEB_ENV}" langgraph dev \
     --no-browser \
     --no-reload \
     --allow-blocking \
-    --n-jobs-per-worker 1
+    --n-jobs-per-worker "${N_JOBS}"