feat(e2e): enhance end-to-end testing setup with new scripts and capture cases

- Updated package.json to include new E2E scripts for execution and snapshot capturing.
- Added new capture cases for the "new-project-modal" and "start-new-chat" functionalities in the E2E tests.
- Increased wait times in session detail captures to ensure elements are fully loaded before interactions.
- Introduced new shell scripts for starting the server and capturing snapshots, improving the E2E testing workflow.
- Updated NewChatModal and SessionsTab components to include data-testid attributes for better test targeting.

scripts/e2e/start_server.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+export PORT=4000
+export GLOBAL_CLAUDE_DIR=$(git rev-parse --show-toplevel)/mock-global-claude-dir
+
+echo "Check directory structure in $GLOBAL_CLAUDE_DIR:"
+ls -l $GLOBAL_CLAUDE_DIR
+
+node ./dist/index.js