fix(messaging): get_conversation HTTP 400 on all URNs + inbox/message shaping#1

Dandiggas wants to merge 2 commits into

devag7:maindevag7/linkedin-mcp:mainfrom

Dandiggas:fix/conversation-urn-and-message-shapingDandiggas/linkedin-mcp:fix/conversation-urn-and-message-shapingCopy head branch name to clipboard