A comprehensive, trend-based analysis of Adda247's workforce strategy from 2020 to 2026, adhering to the specified clinical and data-dense prose, cannot be generated. The foundational requirement for this analysis, specifically the detailed data points outlining expansion, freezes, cuts, and strategic justifications for workforce adjustments and AI refocus, was not provided. Consequently, the macro trends, current rationales, and recent specifics regarding Adda247's human capital strategy cannot be derived or articulated as mandated by the prompt's strict reliance on the absent source material.