fix(issue-template): replace role dropdown with affected component input

[sbaerlocher]

Summary

• The required role dropdown (Alloy, DO, Tailscale) in all three issue templates came from ansible.agent and is meaningless in every other repository these org-wide defaults apply to — go.ansible and guide have no roles at all, yet every reporter there had to pick one. It is now an optional free-form Affected Component(s) input, matching what pull_request_template.md already received in fix(pr-template): generalize org-wide PR template #68.
• The bug report asked for the version of arillso.agent specifically; it now asks for the version of the affected component. The arillso.agent playbook examples are replaced by neutral placeholders.
• Root and templates/ copies stay byte-identical, so repositories bootstrapped from the templates get the same forms.

Test plan

• All six templates parse as YAML and satisfy the issue-forms schema (block types, unique ids, dropdowns carry options) — verified locally
• diff confirms each root template is byte-identical to its templates/ counterpart — verified locally
• No arillso.agent, Alloy, DO or Tailscale references remain in either template directory — verified by repo-wide grep
• CI green

[claude]

Non-blocking follow-up: this PR generalizes the templates for all repo types and correctly makes Version neutral, but two fields just below remain Ansible-specific and required, which reintroduces the exact problem this PR fixes for the role dropdown:

• Ansible Version (id: ansible-version, required: true) — meaningless in go.ansible/guide and Go/Actions repos, yet mandatory to submit.
• The checklist item I am using a supported platform and Ansible version (required: true).
• The Operating System dropdown also lists only Linux distros.

Per the PR's own rationale ("meaningless in every other repository these org-wide defaults apply to"), consider making these optional / neutral too (here and in the identical templates/ISSUE_TEMPLATE/bug_report.yml). Fine as a separate change if you'd rather keep this PR narrowly scoped.

[claude]

No blocking issues found. The change cleanly replaces the required, ansible.agent-specific role dropdown with an optional free-form Affected Component(s) input across all three issue templates, neutralizes the playbook examples, and keeps the root and templates/ copies byte-identical (verified). CHANGELOG entry is in the correct Changed section.

One non-blocking follow-up left inline: bug_report.yml still keeps a required Ansible Version field and an Ansible-specific checklist item, which are meaningless in the non-Ansible repos these org-wide defaults also apply to — the same class of problem this PR fixes for the role dropdown. Fine to address separately if you'd rather keep this PR narrowly scoped.