Add GitHub feature request issue template

[Copilot]

No feature request issue template existed — only bug_report.md was present under .github/ISSUE_TEMPLATE/.

Changes

• .github/ISSUE_TEMPLATE/feature_request.md — adds a Markdown (not YAML forms) feature request template with front matter (name, about, title: '[Feature] ', labels: enhancement) and four sections: Problem Statement, Proposed Solution, Alternatives Considered, Additional Context. Follows the same structure and style as the existing bug_report.md.

Original prompt

Create a pull request in omer-ayhan/firebase-tools-cli that adds a GitHub feature request issue template (Markdown, not YAML forms).

Requirements:

• Add a new file at .github/ISSUE_TEMPLATE/feature_request.md.
• Use the following template content (may adjust wording minimally for clarity, but keep structure and labels):

---

name: Feature request
about: Suggest an idea or improvement for this project
title: "[Feature] "
labels: enhancement

Summary

A clear and concise description of the feature.

Problem / Motivation

What problem does this solve? Why is it needed?

Proposed solution

Describe the proposed behavior/API/CLI UX. Include example commands/output if applicable.

Alternatives considered

Other approaches you considered (and why they’re worse).

Additional context

Links, screenshots, logs, or related issues/PRs.

Acceptance criteria:

• The PR includes the new template file in the correct path.
• The template appears in GitHub’s “New issue” flow as “Feature request” and applies the enhancement label by default.

This pull request was created from Copilot chat.

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