v1.3.2: Log-spaced auto makeup gain for musical accuracy

Auto makeup now evaluates at log-spaced frequencies (equal weight per
octave) instead of linear. Fixes over-compensation on high shelf boosts
where 5k-22kHz dominated the calculation despite having little musical
energy.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.22)
-project(InstaLPEQ VERSION 1.3.0)
+project(InstaLPEQ VERSION 1.3.2)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)