Add Issue and PR templates.

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug Report
+description: File a bug report.
+title: "[Bug]: "
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+  - type: textarea
+    id: describe-the-bug
+    attributes:
+      label: Describe the bug
+      description: A clear and concise description of the bug.
+      placeholder: Tell us what went wrong.
+    validations:
+      required: true
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected behavior
+      description: What did you expect to happen?
+      placeholder: Describe the expected result.
+    validations:
+      required: true
+  - type: textarea
+    id: actual-behavior
+    attributes:
+      label: Actual behavior
+      description: What actually happened?
+      placeholder: Describe the actual result.
+    validations:
+      required: true
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to reproduce
+      description: How can we reproduce this behavior?
+      placeholder: |
+        1. Go to '...'
+        2. Click on '...'
+        3. See error
+    validations:
+      required: true
+  - type: textarea
+    id: environment-information
+    attributes:
+      label: Environment information
+      description: Share your operating environment details.
+      placeholder: |
+        OS:
+        Browser:
+        Plugin version:
+    validations:
+      required: false
+  - type: textarea
+    id: wordpress-environment
+    attributes:
+      label: WordPress Environment
+      description: Share your WordPress environment details.
+      placeholder: |
+        WordPress version:
+        PHP version:
+        Active theme:
+        Active plugins:
+    validations:
+      required: false
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Contribution Guidelines
+      description: By submitting this issue, you agree to follow our [contribution guidelines](https://github.com/rtCamp/carousel-kit/blob/main/docs/CONTRIBUTING.md).
+      options:
+        - label: I have read the contribution guidelines
+          required: true

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+
+contact_links:
+  - name: Report a security vulnerability
+    url: https://github.com/rtCamp/carousel-kit/security/policy
+    about: Please use GitHub Security Advisories to privately report vulnerabilities

.github/ISSUE_TEMPLATE/enhancement.yml

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+name: Enhancement
+description: Suggest an idea for this project.
+title: "[Enhancement]: "
+labels: ["enhancement"]
+body:
+  - type: textarea
+    id: feature-description
+    attributes:
+      label: Feature description
+      description: Describe the feature or improvement you'd like.
+    validations:
+      required: true
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem it solves
+      description: Explain the problem this feature would solve.
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Describe alternatives you've considered
+      description: Describe any alternative solutions or approaches you've considered.
+    validations:
+      required: false
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      description: Add any context, examples, or screenshots.
+    validations:
+      required: false

.github/pull_request_template.md

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+## Summary
+
+Describe the change and why it is needed.
+
+## Type of change
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Enhancement/refactor
+- [ ] Documentation update
+- [ ] Test update
+- [ ] Build/CI/tooling
+
+## Related issue(s)
+
+<!-- 'Closes' will automatically close the linked issue when this PR is merged. -->
+<!-- 'Relates to' is for issues that are relevant but won't be closed by this PR. -->
+Closes #<issue-number>
+Relates to #<issue-number> (if applicable)
+
+## What changed
+
+- <change summary 1>
+- <change summary 2>
+- <change summary 3>
+
+## Breaking changes
+
+Does this introduce a breaking change? If yes, describe the impact and migration path below.
+
+- [ ] Yes — migration path: <!-- describe here -->
+- [ ] No
+
+## Testing
+
+Describe how this was tested.
+
+- [ ] Unit tests
+- [ ] Manual testing
+- [ ] Cross-browser testing (if UI changes)
+
+Test details:
+
+## Screenshots / recordings
+
+If applicable, add screenshots or short recordings.
+
+## Checklist
+
+- [ ] I have self-reviewed this PR
+- [ ] I have added/updated tests where needed
+- [ ] I have updated docs where needed
+- [ ] I have checked for breaking changes