brightspaceR 0.1.0

• Initial CRAN release.
• OAuth2 authentication with D2L Brightspace (bs_auth()).
• Download all Brightspace Data Sets (BDS) as tidy data frames (bs_get_dataset()).
• Download Advanced Data Sets (ADS) with automatic pagination (bs_get_ads()).
• Convenience join functions that know foreign-key relationships (bs_join()).
• Composable analytics helpers for engagement, performance, and retention.
• MCP server for LLM-assisted data exploration (inst/mcp/).