chore: update project dependencies

feat: Implement CredentialWatch agent with MCP client, main entry point, interactive query agent, and various debugging utilities.

feat: Introduce Gradio UI for interactive query and expiry sweep, add a multi-server MCP client, and simplify app startup to directly launch Gradio.

feat: Add Gradio UI for interactive query and expiry sweep agents, integrated with FastAPI and uvicorn.

build: Update Gradio SDK version and associated dependencies.

build: Update Gradio SDK version to 5.0.0 and add requirements.txt for dependency management.

feat: Implement Gradio application with interactive query and expiry sweep, and configure MCP server support.

Clean commit for HF push