Typescript LSP does not resolve references between files.

consider following file

https://github.com/assistant-ui/assistant-ui/blob/main/packages/react-ai-sdk/src/ui/use-assistant/useVercelUseAssistantRuntime.tsx

from multilspy import SyncLanguageServer
from multilspy.multilspy_config import MultilspyConfig
from multilspy.multilspy_logger import MultilspyLogger

config = MultilspyConfig.from_dict({"code_language": "typescript"})
logger = MultilspyLogger()
lsp = SyncLanguageServer.create(config, logger, "/Users/root/assistant-ui/")



with lsp.start_server():
    result1 = lsp.request_definition(
        "packages/react-ai-sdk/src/ui/use-assistant/useVercelUseAssistantRuntime.tsx", # Filename of location where request is being made
        34, # line number of symbol for which request is being made
        34 # column number of symbol for which request is being made
    )

this was always pointing to import statement in the same file but never to definition file
assistant-ui/packages/react-ai-sdk/src/ui/utils/vercelAttachmentAdapter.ts that actually contains definition

Reproduce the issue with SyncLanguageServer, MultilspyConfig, and request_definition against the TypeScript files shown in the report. Trace how the language server is started for the /Users/root/assistant-ui/ workspace and how the request is resolved. Done means the reference from useVercelUseAssistantRuntime.tsx resolves to vercelAttachmentAdapter.ts rather than the import statement.