The James Webb Space Telescope (JWST) has discovered, at redshifts z > 10, abundant massive galaxies (M_* ~ 10^9 to 10^10.5 M_sun) and compact infant star clusters exhibiting extremely high star formation efficiency (SFE ~ 0.5-1) and mature morphologies, far exceeding the slow assembly timescales predicted by standard LCDM models. The 2026 dataset further reveals 'blue monsters,' intermediate-mass dormant/quiescent galaxies, and systems whose apparent ages approach or exceed the age of the universe (e.g., JADES-1050323 at z~6.9), continuously challenging the standard galaxy formation paradigm. Within the Spacetime Ladder Theory (STLT) framework, this paper proposes a two-phase Qi field regulatory mechanism: at high redshift, globally enhanced Q suppresses galactic-scale collapse, delaying overall formation; but local polarization scalar field Omega transitions trigger 'stepwise collapse'---instantaneous Q amplification releasing topological energy and driving SFE ~ 0.5-1 bursts. This mechanism provides a unified explanation for JWST-observed blue monster galaxies, quiescent galaxies, LRD high-density phases, and the extreme diversity from high-SFE systems to dark-matter-deficient galaxies such as NGC 1052-DF2. STLT requires zero free parameters (beta=0.85 self-consistently calibrated from galactic dynamics, alpha=1/137) and predicts 'stepwise burst' signatures at z>12: short high-UV pulses followed by rapid quiescent transitions.