Content Autotagging Guide (Merged into Content Pipeline Guide)

[!IMPORTANT] This guide has been merged into the Content Pipeline, Training, and Retrieval Guide.

Content autotagging, source-type drivers (AutotagBase.Discover / Fetch), the managed "Content Autotagging" prompt (ManagedPromptClassifier / ContentAutotagPrompt), custom MJ: Content Type Attributes extraction, taxonomy bridging (ContentItemTagBridge), vector index resolution (ContentVectorInfrastructure), and RAG+ retrieval are now documented in one place:

• Content Pipeline, Training, and Retrieval Guide — Architecture, WorkingRecord & ConfidenceScale, 5-level configuration cascade, stage-by-stage reference (Discover/Sync, Extract, Tag, Segment, Embed, Delete), prompt & taxonomy bridge reference, source configuration (IContentSourceConfiguration), and Search/RAG+ retrieval.
• Taxonomy & Tagging Guide — How the formal MJ: Tags taxonomy is governed, scoped, embedded, and resolved.
• Content Segmentation Guide — How text and media are split into chunks via @memberjunction/ai-segmentation.