Remove MCP server from project

- Delete mcp_server.py
- Remove MCP startup from __main__.py
- Remove process_mcp_transcribe_task from tasks.py
- Clean MCP references from README.md

scraibe/__main__.py

@@ -5,12 +5,9 @@ Entrypoint for running ScrAIbe as a module:
 
 Always launches the Web GUI (Gradio).
 Optionally launches:
-- MCP-style API server
 - Watch-folder mode
 """
 
-import os
-import threading
 import logging
 
 logger = logging.getLogger("scraibe.__main__")
@@ -18,35 +15,7 @@ logger = logging.getLogger("scraibe.__main__")
 from .webui import create_app
 
 
-def _run_mcp_server():
-    """
-    Run MCP server in a separate thread.
-    """
-    import uvicorn
-    from . import mcp_server
-
-    host = os.getenv("MCP_SERVER_HOST", "0.0.0.0")
-    port = int(os.getenv("MCP_SERVER_PORT", "8000"))
-
-    uvicorn.run(
-        mcp_server.app,
-        host=host,
-        port=port,
-        log_level="info",
-    )
-
-
 if __name__ == "__main__":
-    # Optionally start MCP server in background (non-blocking)
-    mcp_enabled = os.getenv("MCP_SERVER_ENABLED", "false").strip().lower() in ("true", "1", "yes")
-    if mcp_enabled:
-        try:
-            t = threading.Thread(target=_run_mcp_server, daemon=True)
-            t.start()
-            logger.info("MCP server started in background.")
-        except Exception as e:
-            logger.warning("Failed to start MCP server (WebUI will continue): %s", e)
-
     # Optionally start watch-folder mode (non-blocking)
     try:
         from .watcher import start_watcher