chore(examples): add run script for streamable HTTP server

Convenience script that runs simpleStreamableHttp.ts with OAuth from
the repo root. Documents delay env vars in header comments.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: ochafik

run-streamable-http.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# Runs the simpleStreamableHttp server with OAuth enabled
+#
+# Environment variables for testing delays:
+#   MCP_DELAY_LIST_TOOLS_MS - Delay tools/list requests
+#   MCP_DELAY_CALL_TOOL_MS  - Delay tools/call requests
+#   MCP_DELAY_DCR_MS        - Delay Dynamic Client Registration
+#
+# Usage:
+#   ./run-streamable-http.sh
+#   MCP_DELAY_LIST_TOOLS_MS=2000 ./run-streamable-http.sh
+
+cd "$(dirname "$0")"
+
+npx tsx src/examples/server/simpleStreamableHttp.ts --oauth "$@"