docs: implement standardized GitHub issue and PR templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug Report
+about: Create a report to help us improve.
+title: 'bug: '
+labels: bug
+assignees: ''
+
+---
+
+# Problem
+Describe the issue clearly.
+
+# Current Behavior
+Explain what is currently happening. Please provide screenshots or videos if possible.
+
+# Steps to Reproduce
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+# Environment
+- Browser: [e.g. Chrome, Safari]
+- Device: [e.g. iPhone6, Desktop]
+- OS: [e.g. Windows, macOS]
+
+# Expected Outcome
+A clear and concise description of what you expected to happen.
+
+# Additional context
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature Request
+about: Suggest an idea for this project.
+title: 'feat: '
+labels: enhancement
+assignees: ''
+
+---
+
+# Problem
+Is your feature request related to a problem? Please describe.
+
+# Proposed Solution
+Describe the solution you'd like to see implemented.
+
+# Why This Improvement Is Needed
+Explain the impact on users or developers.
+
+# Expected Outcome
+What will be different after this is implemented?
+
+# Additional context
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/ui_ux_improvement.md

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+---
+name: UI/UX Improvement
+about: Suggest a UI polish or UX enhancement.
+title: 'ui/ux: '
+labels: ui/ux, enhancement
+assignees: ''
+
+---
+
+# Current UI/UX
+Describe the current design or user flow.
+
+# Proposed Improvement
+Describe the visual or interactive changes.
+
+# Why This Improvement Is Needed
+How does this improve the user experience or the "Orange Theme" consistency? (Reference README guidelines).
+
+# Expected Outcome
+What will the new interface look like?
+
+# References/Screenshots
+Add any mockups or reference designs here.

.github/PULL_REQUEST_TEMPLATE.md

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+# Related Issue
+Closes #
+
+# Summary
+Provide a brief summary of the changes made and why they are necessary.
+
+# Changes Made
+- List specific changes.
+- Mention any new files created.
+- Mention any refactored logic.
+
+# Testing
+How did you test these changes?
+- [ ] Local testing in Chrome/Firefox/Safari
+- [ ] Responsive design verified (Mobile/Tablet/Desktop)
+- [ ] Accessibility (Contrast, ARIA, Keyboard Nav)
+- [ ] Build/Terminal checks
+
+# Screenshots
+If this PR includes UI changes, please provide Before/After screenshots.
+
+| Before | After |
+| --- | --- |
+| Image | Image |
+
+# Impact
+How does this PR improve the project?
+
+# Checklist
+- [x] Code follows project standards (Orange theme, naming conventions)
+- [x] Tested locally
+- [x] No unrelated changes included
+- [x] Commit messages follow the project format