fix(i18n): add missing {} placeholder in Slovak translation

Line 554 of sk/messages.po was missing the {} format placeholder
that msgid "{} User Successfully Imported" requires, causing msgfmt
to fail with "a format specification for argument '0' doesn't exist
in 'msgstr'".

Added {} to match the English source and all other translations.

Also: add PR analysis report to DEV/ directory documenting the
2025-08-05 triage of 154 open pull requests.

Author: crocodilestick

cps/translations/sk/LC_MESSAGES/messages.po

@@ -551,7 +551,7 @@ msgstr "Minimálne jeden LDAP používateľ sa nenachádza v databáze"
 #: cps/admin.py:2180
 #, python-brace-format
 msgid "{} User Successfully Imported"
-msgstr "Používateľ bol naimportovaný"
+msgstr "{} používateľ bol úspešne importovaný"
 
 #: cps/admin.py:2244
 msgid "Books path not valid"

messages.pot

@@ -10,7 +10,7 @@ msgstr ""
 "Project-Id-Version: Calibre-Web Automated v4.0.6\n"
 "Report-Msgid-Bugs-To: https://github.com/crocodilestick/Calibre-Web-"
 "Automated\n"
-"POT-Creation-Date: 2026-08-05 17:27+0200\n"
+"POT-Creation-Date: 2026-08-05 17:42+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"