tools: add tabductor_new_tab MCP tool for opening tabs programmatically

run_js: write only JS return value to outputPath, keep full info in MCP result

run_js: add outputPath param to write result to file

client: use native WebSocket API to avoid Bun unhandled ErrorEvent from ws

server: disable navigate by default and document opt-in behavior

session: preserve reconnectable tabs without stale snapshot leakage

config: bootstrap platform-aware global config and tool overrides

Toggle connect/disconnect buttons based on active tab state

Apply browser theme support to extension popup

update usage instructions

Update Tabductor repo references

Rename BrowserMCP to Tabductor

Add text-driven action helpers

Add config file support

Expand README agent workflow