chore: add .github directory

.github/FUNDING.yml

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+# These are supported funding model platforms
+
+github: aclist

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug report
+description: Submit bugs that affect functionality here
+title: "[BUG] Your title here"
+labels: ["bug"]
+assignees:
+  - aclist
+body:
+  - type: markdown
+    attributes:
+      value: |
+          ### WARNING: When posting log/config data, redact any sensitive information like API keys.
+  - type: checkboxes
+    id: kb
+    attributes:
+      label: Did you check if this issue already exists?
+      options:
+        - label: I have checked the [Knowledge Base](https://aclist.github.io/dzgui/kb.html) and searched through [past issues](https://github.com/aclist/dztui/issues?q=is%3Aissue+is%3Aclosed) and did not find my issue there.
+          required: true
+  - type: dropdown
+    id: device
+    attributes:
+      label: Device type
+      options:
+        - Desktop PC
+        - Steam Deck
+      default: 0
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: DZGUI version
+    validations:
+      required: true
+      placeholder: "5.6.0"
+  - type: input
+    id: distro
+    attributes:
+      label: Linux distribution
+    validations:
+      required: true
+      placeholder: "Arch Linux"
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: Describe the bug
+      description: What did you expect to happen?
+      placeholder: "E.g., When doing X, Y occurred. Include as much detail as possible."
+    validations:
+      required: true
+  - type: textarea
+    id: logs
+    attributes:
+      label: Additional log output
+      description: Attach the file `$HOME/.local/state/dzgui/DZGUI_DEBUG.log` by clicking this area to highlight it and then dragging the file in.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature.yml

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+name: Feature suggestion
+description: Submit requests for new features here
+title: "[FEAT] Your title here"
+labels: ["enhancement"]
+assignees:
+  - aclist
+body:
+  - type: dropdown
+    id: device
+    attributes:
+      label: Device type
+      options:
+        - Desktop PC
+        - Steam Deck
+      default: 0
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: DZGUI version
+    validations:
+      required: true
+      placeholder: "5.6.0"
+  - type: input
+    id: distro
+    attributes:
+      label: Linux distribution
+    validations:
+      required: true
+      placeholder: "Arch Linux"
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: Describe the feature
+      description: A clear and detailed description
+      placeholder: "E.g., Add a dialog to the Options menu that automatically lets the user do Y"
+    validations:
+      required: true
+  - type: textarea
+    id: why
+    attributes:
+      label: Describe the benefit
+      description: How will this feature benefit large numbers of users?
+      placeholder: "E.g., Currently, users have to manually do X to achieve Y. Implementing this feature would achieve A, B, and C."
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/trouble.yml

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+name: Troubleshooting
+description: Submit user error/troubleshooting questions here
+title: "[HELP] Your title here"
+labels: ["troubleshooting"]
+assignees:
+  - aclist
+body:
+  - type: markdown
+    attributes:
+      value: |
+          ### WARNING: When posting log/config data, redact any sensitive information like API keys.
+  - type: dropdown
+    id: device
+    attributes:
+      label: Device type
+      options:
+        - Desktop PC
+        - Steam Deck
+      default: 0
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: DZGUI version
+    validations:
+      required: true
+      placeholder: "5.6.0"
+  - type: input
+    id: distro
+    attributes:
+      label: Linux distribution
+    validations:
+      required: true
+      placeholder: "Arch Linux"
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: Describe the issue
+      description: A detailed description. What did you expect to happen?
+      placeholder: "Include as much detail as possible and state the steps leading up to the problem. E.g., First I do this, then I do this, then this happens."
+    validations:
+      required: true
+  - type: textarea
+    id: logs
+    attributes:
+      label: Additional log output
+      description: Attach the file `$HOME/.local/state/dzgui/DZGUI_DEBUG.log` by clicking this area to highlight it and then dragging the file in.
+    validations:
+      required: false

.github/workflows/mirror.yml

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+name: Mirror to Codeberg
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  mirror-to-codeberg:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: pixta-dev/repository-mirroring-action@v1
+        if: ${{ vars.GIT_REMOTE != '' }}
+        with:
+          target_repo_url: ${{ vars.GIT_REMOTE }}
+          ssh_private_key: ${{ secrets.GIT_SSH_PRIVATE_KEY }}