loobric-cli 1.3.1 — loud dead-credential diagnosis at MCP startup

Fixed

• loobric-mcp now diagnoses a dead credential at startup. A rejected key (HTTP 401) previously failed silently at connect and only surfaced as 'everything 401s' mid-task. Startup now prints one specific stderr message naming the causes in likelihood order: MCP host not restarted after a key change (env is read at startup only), a project-scoped MCP config entry shadowing the global one, a key/LOOBRIC_BASE_URL server mismatch, or a revoked key. Non-401 errors stay quiet — a down server surfaces properly on the first tool call.