Bump version to 0.5.1 and update localization files; update dependencies in requirements and pyproject.toml

update_translations.bat

@@ -1,19 +1,42 @@
 @echo off
 setlocal enabledelayedexpansion
 
-:: Create POT file
+:: Extract version from pyproject.toml
+for /f "usebackq tokens=2 delims== " %%v in (`findstr /R "^version *= *" pyproject.toml`) do set VERSION=%%v
+set VERSION=%VERSION:"=%
+echo Detected version: %VERSION%
+
+pushd kapitanbooru_uploader
+
+:: 1. Delete old .pot
 del locales\messages.pot 2>nul
-for %%f in (*.py) do (
-    if not exist locales\messages.pot (
-        xgettext -d messages -o locales\messages.pot "%%f"
-    ) else (
-        xgettext -d messages -o locales\messages.pot --join-existing "%%f"
+
+:: 2. Collect all .py files into a list
+set PY_FILES=
+for %%f in (*.py) do set PY_FILES=!PY_FILES! "%%f"
+
+:: 3. Generate .pot file
+if defined PY_FILES (
+    xgettext --package-name="Kapitanbooru Uploader" --package-version="%VERSION%" -d messages -o locales\messages.pot %PY_FILES%
+) else (
+    echo Error: No .py files found.
+    exit /b 1
+)
+
+:: 4. Normalize .po headers with msgcat
+for /D %%d in (locales\*) do (
+    if exist "%%d\LC_MESSAGES\messages.po" (
+        msgcat --no-location --sort-output -o "%%d\LC_MESSAGES\messages.po.new" "%%d\LC_MESSAGES\messages.po"
+        move /Y "%%d\LC_MESSAGES\messages.po.new" "%%d\LC_MESSAGES\messages.po"
     )
 )
 
-:: Update PO files
+:: 5. Force-update PO files
 for /D %%d in (locales\*) do (
     if exist "%%d\LC_MESSAGES\messages.po" (
-        msgmerge --update "%%d\LC_MESSAGES\messages.po" locales\messages.pot
+        msgmerge --update --force-po --backup=none "%%d\LC_MESSAGES\messages.po" locales\messages.pot
     )
-)
+)
+
+popd
+echo Done.