build(windows): fix PyInstaller packaging\n\n- Add spec file with hiddenimports and data dirs\n- Use spec in release workflow; fallback to --paths code\n- Insert ./code into sys.path when frozen to resolve local imports

mtg_deckbuilder.spec

@@ -0,0 +1,32 @@
+# PyInstaller spec to build mtg-deckbuilder reliably with code package
+import sys
+from PyInstaller.utils.hooks import collect_submodules
+
+block_cipher = None
+
+hiddenimports = collect_submodules('code')
+
+a = Analysis(
+    ['code/main.py'],
+    pathex=['.','code'],
+    binaries=[],
+    datas=[('csv_files/*', 'csv_files'), ('deck_files/*', 'deck_files'), ('logs/*', 'logs'), ('config/*', 'config')],
+    hiddenimports=hiddenimports,
+    hookspath=[],
+    runtime_hooks=[],
+    excludes=[],
+    noarchive=False,
+)
+pyz = PYZ(a.pure, a.zipped_data, cipher=block_cipher)
+exe = EXE(
+    pyz,
+    a.scripts,
+    a.binaries,
+    a.zipfiles,
+    a.datas,
+    name='mtg-deckbuilder',
+    debug=False,
+    strip=False,
+    upx=True,
+    console=True,
+)