release/0.12.0

[mxfactorial]

0.12.0 (2026-03-31)

fixed

• BREAKING: pow() now scales the total angle by n instead of adding nπ — matches repeated multiplication for all n

added

• Mul for Angle and &Angle: scalar multiplication of angles
• calculus_test.rs: power rule as angle readout, factorials from angle descent, limits as lossy projections, fundamental theorem as geometric interference, gradient, laplacian, line/surface/volume integrals
• taylor_series_test.rs: taylor coefficients as geometric normalizations, e^x as uniform angle contribution, sin/cos as grade-filtered projections, euler's formula as grade decomposition, convergence as angle descent dominance
• algebra_test.rs: fundamental theorem of algebra via winding numbers — degree = wraps, roots = unwindings, polynomial evaluation on circles, roots of unity as generalized Q lattice

changed

• replaced old calculus_test.rs (24 tests) with power-rule-anchored suite (23 tests)