docs: apply Xsolla GitHub repository standard files

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,34 @@
+---
+name: Bug report
+about: Report something that is broken or behaves incorrectly
+title: "[Bug]: "
+labels: ["bug", "triage"]
+---
+
+## Summary
+
+<!-- A clear, one- or two-sentence description of the bug. -->
+
+## Steps to reproduce
+
+1.
+2.
+3.
+
+## Expected behavior
+
+<!-- What you expected to happen. -->
+
+## Actual behavior
+
+<!-- What actually happened. Include error messages or screenshots if relevant. -->
+
+## Environment
+
+- OS:
+- SDK / plugin / engine version:
+- Project version / commit:
+
+## Additional context
+
+<!-- Anything else that helps us understand the problem. -->

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Xsolla Developer Portal
+    url: https://developers.xsolla.com
+    about: Integration guides, API reference, and account-specific help.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,14 @@
+---
+name: Feature request
+about: Suggest an improvement or new capability
+title: "[Feature]: "
+labels: ["enhancement", "triage"]
+---
+
+## Problem
+
+## Proposed solution
+
+## Alternatives considered
+
+## Additional context

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,14 @@
+---
+name: Question
+about: Ask a question about using this project
+title: "[Question]: "
+labels: ["question", "triage"]
+---
+
+> **Before opening a question**, check the [README](../../README.md) and the
+> [Xsolla developer portal](https://developers.xsolla.com). For account- or
+> integration-specific help, the developer portal is usually the fastest route.
+
+## Question
+
+## Context

.github/pull_request_template.md

@@ -0,0 +1,20 @@
+## Summary
+
+<!-- Describe what this PR does and why. One paragraph is enough. -->
+
+## Changes
+
+<!-- List the main changes. Use bullet points. -->
+
+-
+
+## Testing
+
+<!-- Describe how the changes were tested. Include relevant commands if applicable. -->
+
+## Checklist
+
+- [ ] Self-review completed
+- [ ] Tests added or updated (if applicable)
+- [ ] Documentation updated (if applicable)
+- [ ] No unrelated changes included

CONTRIBUTING.md

@@ -0,0 +1,19 @@
+# Contributing to Xsolla Pay Station SDK
+
+Thanks for your interest in contributing to this project.
+
+## Code of Conduct
+
+This project adheres to the [Xsolla Code of Conduct](https://github.com/xsolla/.github/blob/main/CODE_OF_CONDUCT.md). By participating, you agree to uphold it.
+
+## Submitting a pull request
+
+1. Fork the repository and create a branch from the default branch.
+2. Make your changes with appropriate tests.
+3. Open a pull request. The PR template will guide you through the description.
+4. A maintainer will review your change.
+
+## Questions
+
+For questions, open a [GitHub Issue](https://github.com/xsolla/pay-station-sdk/issues).
+For Xsolla product and integration questions, see the [Xsolla developer portal](https://developers.xsolla.com).

README.md

@@ -1,5 +1,8 @@
 # Xsolla Pay Station SDK
 
+![License](https://img.shields.io/github/license/xsolla/pay-station-sdk)
+![Latest release](https://img.shields.io/github/v/release/xsolla/pay-station-sdk)
+
 - [What is Pay Station SDK?](#what-is-pay-station-sdk)
 - [Installing with npm-package](#installing-with-npm-package)
 - [General integration scheme](#general-integration-scheme)
@@ -1466,3 +1469,12 @@ You can get the list of locales by using the `headlessCheckout.getAvailableLangu
 
 When attempting to make a payment with a selected country that is not supported in the Pay Station SDK, the payment API will return an error message.
 You can find an example [here](./examples/unsupported-country).
+
+## Support
+
+- **GitHub Issues:** [github.com/xsolla/pay-station-sdk/issues](https://github.com/xsolla/pay-station-sdk/issues)
+- **Developer portal:** [developers.xsolla.com](https://developers.xsolla.com)
+
+## License
+
+Apache 2.0 License. See [LICENSE](./LICENSE).