• Add Italian translation for linked file adjustment error message
• Add Russian translations for 30+ new UI strings and messages
• Update localization files with missing property keys
• Cover file operations, search, groups, and settings features

Add Italian linked file error translation

• Add Italian translation for error message about linked file adjustment failures during import
• Single new property key added to support improved error handling

jablib/src/main/resources/l10n/JabRef_it.properties

Add comprehensive Russian translations for UI features

• Add 30+ new Russian translations for UI strings across multiple feature areas
• Cover file operations (copy, rename, delete, move to trash)
• Add search-related strings (filter results, fulltext search, indexing)
• Add group management strings (no group, date grouping options)
• Add settings strings (password persistence, PAT, credential store, library selection)
• Add import/export and integrity check related messages

jablib/src/main/resources/l10n/JabRef_ru.properties

Description

This PR directly modifies translated localization files
(jablib/src/main/resources/l10n/JabRef_it.properties and
jablib/src/main/resources/l10n/JabRef_ru.properties), but the checklist requires applying
localization-consistency changes only in JabRef_en.properties rather than editing
JabRef_<lang>.properties files. This can break the intended localization workflow and create
inconsistencies that are harder to enforce and maintain.

Code

jablib/src/main/resources/l10n/JabRef_it.properties[3497]

Evidence

Rule 20 specifies that localization consistency fixes must be made only in the English base file
JabRef_en.properties and forbids/disallows direct edits to translated JabRef_<lang>.properties
files. The cited changes show that this PR modifies
jablib/src/main/resources/l10n/JabRef_it.properties at the referenced line and also modifies
jablib/src/main/resources/l10n/JabRef_ru.properties at the referenced line, which directly
violates that rule.

AGENTS.md: Localization Files: Fix LocalizationConsistencyTest Output Exactly and Only Edit JabRef_en.properties
jablib/src/main/resources/l10n/JabRef_it.properties[3497-3497]
jablib/src/main/resources/l10n/JabRef_ru.properties[478-478]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

## Issue description
This PR includes direct edits to translated localization files (`JabRef_<lang>.properties`), but the compliance checklist (Rule 20) requires that localization-consistency changes be applied only to the English base file (`JabRef_en.properties`) and not made directly in translated files.

## Issue Context
If the intent of these edits is to address localization consistency / LocalizationConsistencyTest output, update the relevant keys only in `JabRef_en.properties`. Translations for other languages should be updated through the standard translation workflow/pipeline (e.g., Crowdin sync) rather than via direct modifications to `JabRef_<lang>.properties`.

## Fix Focus Areas
- jablib/src/main/resources/l10n/JabRef_it.properties[3497-3497]
- jablib/src/main/resources/l10n/JabRef_ru.properties[478-478]

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools

Description

A UI label string ends with a trailing colon (:), which is forbidden by the UI text conventions.
This can lead to inconsistent UI wording and violates the no-trailing-colon rule.

Code

jablib/src/main/resources/l10n/JabRef_ru.properties[533]

Evidence

Rule 19 prohibits UI label texts ending with :. The added/modified localization entry `Custom JDBC
Url: maps to a Russian label that ends with :` at the cited line.

AGENTS.md: UI Labels Must Not End With a Colon
jablib/src/main/resources/l10n/JabRef_ru.properties[533-533]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

## Issue description
A localized UI label ends with a trailing colon (`:`), which is disallowed.

## Issue Context
The key/value pair `Custom JDBC Url:` / `Пользовательский JDBC URL:` ends with `:`. The label text should be adjusted to not end with a colon.

## Fix Focus Areas
- jablib/src/main/resources/l10n/JabRef_ru.properties[533-533]

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools