feat(scoring): anchor vectors (bipolar constructs) [spec 0006]

feat: LLM-generated construct items (design note ITEM_GENERATION.md)

feat: Implement multi-construct functionality in CCR analysis

Refactor admin page to include collapsible sections and enhance invite link management

Four-tier access model: self-governing admin, pre-login access, audit trail

Admin page v1: user roles (lab tier), password resets, failed-run requeue, verification queue

Sync platform from lab mainline: dev instance ready to deploy

CCR Platform: web platform for Contextualized Construct Representations