fix(constructs): correct the review pass after a validity review

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

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

feat: CAML lab branding - CCR logo, ink+teal theme, favicon, attribution

feat: Implement multi-construct functionality in CCR analysis

Sync platform from lab mainline: dev instance ready to deploy

CCR Platform: web platform for Contextualized Construct Representations