Initial commit — Copydev Imposing Tool

Outil d'imposition PDF desktop (PyQt6) remplacant Quite Imposing Plus.
9 fonctions : livret, n-up, step & repeat, imposition manuelle,
jointure pages, pages blanches, numerotation, masquage, fonds perdus.

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

build.bat

@@ -0,0 +1,22 @@
+@echo off
+REM Script de build Windows pour Copydev Imposing Tool
+REM Prerequis : Python 3.12+, pip install -r requirements.txt
+
+echo Installation des dependances...
+pip install -r requirements.txt
+
+echo.
+echo Construction de l'executable...
+pyinstaller --onefile --noconsole --name CopydevImposingTool main.py ^
+    --hidden-import pypdf ^
+    --hidden-import reportlab ^
+    --hidden-import reportlab.pdfgen ^
+    --hidden-import reportlab.lib ^
+    --hidden-import reportlab.lib.pagesizes ^
+    --hidden-import reportlab.lib.units ^
+    --hidden-import pypdfium2 ^
+    --hidden-import pypdfium2._helpers
+
+echo.
+echo Termine ! L'executable est dans le dossier dist/
+pause