chore: import upstream snapshot with attribution

.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: |
+        We do not accept issues in languages other than English.
+
+  - type: input
+    id: version
+    attributes:
+      label: "App version"
+    validations:
+      required: true
+
+  - type: textarea
+    id: bug-description
+    attributes:
+      label: "Describe the bug"
+      description: "A clear and concise description of what the bug is."
+    validations:
+      required: true
+
+  - type: textarea
+    id: steps-to-reproduce
+    attributes:
+      label: "How to reproduce"
+      description: "Steps to reproduce the bug."
+      value: |
+        1.
+        2.
+        3.
+        ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: "Expected behavior"
+      description: "A description of what you expected to happen."
+    validations:
+      required: true
+
+  - type: textarea
+    id: screenshots
+    attributes:
+      label: "Screenshots"
+      description: "If possible, attach screenshots."
+    validations:
+      required: false
+
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: "Check List"
+      options:
+        - label: "I have read the [CONTRIBUTING.md](https://github.com/runcat-dev/RunCat365/blob/main/CONTRIBUTING.md) and agree to follow it."
+          required: true
+        - label: "Uninstalled App."
+          required: true
+        - label: "Re-launched your computer."
+          required: true
+        - label: "Checked that no similar issues already exist."
+          required: true

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Feature Request
+description: File a feature request.
+title: "[Idea]: "
+labels: ["enhancement"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        We do not accept requests in languages other than English.
+
+  - type: textarea
+    id: overview
+    attributes:
+      label: "Overview of the requested feature"
+      description: "Please provide a brief summary of the feature you're requesting."
+    validations:
+      required: true
+
+  - type: textarea
+    id: reason
+    attributes:
+      label: "Reason for the request"
+      description: "Explain why this feature is needed and what motivated your request."
+    validations:
+      required: true
+
+  - type: textarea
+    id: related-issues
+    attributes:
+      label: "Related Issues"
+      description: "Link to related issues, if applicable."
+    validations:
+      required: false
+
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: "Check List"
+      options:
+        - label: "I have read the [CONTRIBUTING.md](https://github.com/runcat-dev/RunCat365/blob/main/CONTRIBUTING.md) and agree to follow it."
+          required: true
+        - label: "The proposed feature is beneficial to a wide range of users and not just a personal preference."
+          required: true
+        - label: "Checked that no similar requests already exist."
+          required: true

.github/how_to_release.md

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+# How to Release a New Version to Microsoft Store
+
+This document is for code owners.
+
+## 1. Update Version Numbers
+
+Version numbers must be updated in **two** locations:
+
+1. **RunCat365/RunCat365.csproj**
+   - Update `<Version>X.Y.Z</Version>` (3-digit format)
+2. **WapForStore/Package.appxmanifest**
+   - Update `Version="X.Y.Z.0"` in the `<Identity>` element (4-digit format)
+
+## 2. Build the App
+
+1. Open the solution in Visual Studio
+2. Verify the build succeeds in Release configuration
+
+## 3. Create the Package
+
+1. In Visual Studio, right-click on the **WapForStore** project
+2. Select **Publish** > **Create App Packages**
+3. Choose **Microsoft Store as MSIX package** and sign in with your Microsoft account
+4. Select the existing app "RunCat 365"
+5. Configure package settings (x86, x64, arm64)
+6. Generate the `.msixupload` file
+
+## 4. Submit to Partner Center
+
+1. Sign in to [Partner Center](https://partner.microsoft.com/dashboard)
+2. Navigate to **Apps and games** > **RunCat 365**
+3. Click **Start a new submission**
+4. Update the following sections:
+   - **Packages**: Upload the generated `.msixupload` file
+   - **Store listings**: Update description/screenshots if needed
+   - **Release notes**: Describe changes in this version
+5. Click **Submit to the Store**
+
+## 5. Wait for Certification
+
+- Certification typically takes 1-3 business days
+- If issues are found, fix them and resubmit

.github/pull_request_template.md

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+## Context of Contribution
+
+<!-- Each pull request should fix only one issue or propose one feature. -->
+<!-- Do not mix unrelated changes in a single PR. -->
+
+- [ ] Bug Fix
+- [ ] Refactoring
+- [ ] New Feature
+- [ ] Others
+
+## Summary of the Proposal
+
+<!-- Provide a concise summary of what this pull request proposes. -->
+
+## Reason for the new feature
+
+<!-- If it's a new feature, explain why this feature is necessary. -->
+<!-- Explain how important this feature is to many users. -->
+<!-- Explain if the benefits of the new feature outweigh the maintenance cost. -->
+
+## Checklist
+
+- [ ] I have read the [CONTRIBUTING.md](../blob/main/CONTRIBUTING.md) and agree to follow it.
+- [ ] This PR does not contain commits of multiple contexts.
+- [ ] Code follows proper indentation and naming conventions.
+- [ ] Implemented using only APIs that can be submitted to the Microsoft Store.
+- [ ] Works correctly in both dark theme and light theme.
+- [ ] Works correctly on any device.