Replace GitHub Markdown issue templates with GitHub YAML issue forms.

Resolve #650

Signed-off-by: Ross Goldberg <[email protected]>

.github/ISSUE_TEMPLATE/01-bug-report.yml

@@ -1,58 +1,96 @@
 ---
-name: Bug report
-about: Report a bug
-title: ''
+name: Bug Report
+description: Report a bug.
 labels: "\U0001F41B bug"
-assignees: ''
----
-## Your Environment
-
-mas version:
-
-\<replace this text with the output of `mas version`\>
-
-macOS version:
-
-\<replace this text with the output of `sw_vers`\>
-
-### mas Install Method
-
-[] `brew install mas` ([Homebrew core](https://github.com/Homebrew/homebrew-core))
-
-[] `brew install mas-cli/tap/mas` ([mas Homebrew custom tap](https://github.com/mas-cli/homebrew-tap))
-
-[] [mas GitHub Releases](https://github.com/mas-cli/mas/releases)
-
-- URL of installer:
-
-[] Built from source
-
-- git origin URL: \<e.g., GitHub fork URL, <https://github.com/mas-cli/mas>…\>
-- git revision:
-- git tag/branch:
-- Xcode version:
-
-## Bug Description
-
-## Steps to Reproduce
-
-1.
-
-## Expected Behavior
-
-## Actual Behavior
-
-## Shell Output, Screenshots…
-
-\<copy & paste shell commands & output below\>
-
-```shell
-$ mas <command> …
-…
-```
-
-\<attach screenshots only if cannot copy & paste\>
-
-## Additional Context
-
-\<e.g., did the bug occur in previous mas or macOS versions?>
+body:
+  - type: input
+    id: mas-version
+    attributes:
+      label: mas version
+      description: The output of `mas version`
+      placeholder: ex. 1.8.7
+    validations:
+      required: true
+  - type: input
+    id: macos-version
+    attributes:
+      label: macOS version
+      description: The output of `sw_vers -productVersion`
+      placeholder: ex. 15.1.1
+    validations:
+      required: true
+  - type: input
+    id: macos-build
+    attributes:
+      label: macOS build version
+      description: The output of `sw_vers -buildVersion`
+      placeholder: ex. 24B2091
+    validations:
+      required: true
+  - type: dropdown
+    id: install-method
+    attributes:
+      label: mas installation method
+      options:
+        - Homebrew core (brew install mas)
+        - Homebrew custom tap (brew install mas-cli/tap/mas)
+        - GitHub Releases (https://github.com/mas-cli/mas/releases)
+        - Built from source
+        - Other
+      default: 0
+    validations:
+      required: true
+  - type: textarea
+    id: install-details
+    attributes:
+      label: mas installation details
+      # yamllint disable rule:trailing-spaces
+      value: |
+        <!--if you selected the "Other" installation method, provide details below-->
+
+        <!--if you installed from GitHub Releases, provide URL of installer below-->
+
+        <!--if you built from source, uncomment the following comment & provide all 4 values-->
+
+        <!--
+        - git origin URL: 
+        - git revision: 
+        - git tag/branch: 
+        - Xcode version: 
+        -->
+      # yamllint enable rule:trailing-spaces
+    validations:
+      required: false
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected behavior
+      placeholder: Prefer copied & pasted commands & output instead of screenshots
+    validations:
+      required: true
+  - type: textarea
+    id: actual-behavior
+    attributes:
+      label: Actual behavior
+      placeholder: Prefer copied & pasted commands & output instead of screenshots
+    validations:
+      required: true
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: Steps to reproduce
+      description: |
+        Provide commands to reproduce the bug in the multiline shell block. Write non-shell steps as comments (`# …`).
+      value: |
+        ```shell
+
+        ```
+    validations:
+      required: true
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      placeholder: ex. Does the bug occur in other mas or macOS versions?
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/02-feature-request.yml

@@ -1,18 +1,33 @@
 ---
 name: Feature request
-about: Request a feature
-title: ''
+description: Request a feature.
 labels: "\U0001F195 feature request"
-assignees: ''
----
-## Problem(s) addressed
-
-## Proposed solution(s)
-
-## Alternative solution(s)
-
-## Additional context
-
-\<e.g., copied & pasted shell commands & output>
-
-\<e.g., screenshots only if cannot copy & paste>
+body:
+  - type: textarea
+    id: problems
+    attributes:
+      label: Problem(s) addressed
+      placeholder: Prefer copied & pasted commands & output instead of screenshots
+    validations:
+      required: true
+  - type: textarea
+    id: proposals
+    attributes:
+      label: Proposed solution(s)
+      placeholder: Prefer copied & pasted commands & output instead of screenshots
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternative solution(s)
+      placeholder: Prefer copied & pasted commands & output instead of screenshots
+    validations:
+      required: false
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      placeholder: Prefer copied & pasted commands & output instead of screenshots
+    validations:
+      required: false