Add structured bug and feature issue templates with GitHub Forms

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug report
+description: Report a problem with an auditing or hardening script, or its documentation.
+labels: ["awaiting review", "bug"]
+assignees: ["StrangeRanger"]
+
+body:
+  - type: dropdown
+    id: component
+    attributes:
+      label: Affected script or documentation
+      description: Select all that apply.
+      multiple: true
+      options:
+        - Lynis Installer
+        - Root Locker
+        - SSHD Hardening
+        - UFW Cloudflare
+        - Nginx WAF
+        - Documentation or repository
+    validations:
+      required: true
+
+  - type: textarea
+    id: problem
+    attributes:
+      label: What went wrong?
+      description: Describe the expected result, actual behavior, and impact on auditing, system access, or a service.
+    validations:
+      required: true
+
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: Steps to reproduce
+      description: Note whether this was a first or repeat run and whether it was interrupted.
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant output
+      description: Paste sanitized output, including the first error and surrounding lines, and the exit status if known. No code fences needed.
+      render: text
+
+  - type: textarea
+    id: environment
+    attributes:
+      label: Environment
+      description: |
+        Include details relevant to the failure. Find the script version in its `# Version:` header.
+        For Nginx build failures, include sanitized `nginx -V` output and the Nginx installation source.
+      placeholder: |
+        Linux distribution and release:
+        Bash version (bash --version):
+        Script version and/or repository commit:
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      description: |
+        Link related issues or describe when this last worked. Include only relevant, sanitized excerpts.
+        Useful details depend on the script:
+          - Lynis Installer: destination and whether it already existed; distinguish installer failures from later Lynis audit results.
+          - Root Locker: root password lock status and whether non-root sudo access still works.
+          - SSHD Hardening: relevant settings/includes, service name (ssh/sshd), and whether new SSH logins work.
+          - UFW Cloudflare: before/after rules, IPv4/IPv6 behavior, range download errors, and Cloudflare versus direct origin access.
+          - Nginx WAF: failing stage, reused build directories, configuration check results, and rule IDs for blocked requests.

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: Script documentation
+    url: https://github.com/StrangeRanger/linux-security-scripts#tools-and-scripts
+    about: Review requirements, usage, and compatibility for each script.

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Feature request
+description: Suggest a script improvement, new auditing or hardening script, or documentation change.
+labels: ["awaiting review", "enhancement"]
+assignees: ["StrangeRanger"]
+
+body:
+  - type: dropdown
+    id: scope
+    attributes:
+      label: Scope
+      multiple: true
+      options:
+        - Improve an existing script
+        - Add a new standalone script
+        - Improve documentation or repository tooling
+    validations:
+      required: true
+
+  - type: dropdown
+    id: component
+    attributes:
+      label: Affected script or documentation
+      description: Select all that apply. Choose N/A if no existing script or documentation applies.
+      multiple: true
+      options:
+        - Lynis Installer
+        - Root Locker
+        - SSHD Hardening
+        - UFW Cloudflare
+        - Nginx WAF
+        - Documentation or repository
+        - N/A
+    validations:
+      required: true
+
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem or use case
+      description: Describe the task you need to accomplish, who would benefit, and what the current scripts or documentation do not address.
+    validations:
+      required: true
+
+  - type: textarea
+    id: proposal
+    attributes:
+      label: Proposed behavior
+      description: Describe how the feature should work from the user's perspective. Include an example command, prompt, configuration change, or expected output if helpful.
+    validations:
+      required: true
+
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered
+      description: Describe current workarounds, manual steps, or existing tools you considered and why they do not meet this use case.
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      description: Link relevant upstream documentation, audit recommendations, or related issues.