feat: ✨ AIによる週刊Flutterニュース自動生成機能の追加

[kboy-silvergym]

Description

Types of changes

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Documentation Update (if none of the other choices apply)
• Others (any other types not listed above)

Checklist

• I have read the Contributing Guide
• I have added the necessary documentation (if appropriate)
• Breaking Change (fix or feature that would cause existing functionality to not work as expected)

Further comments

Related Issue

Closes: #

[Copilot]

Pull Request Overview

Adds an automated weekly Flutter news feature by fetching recent RSS articles and using an AI model to generate a Markdown blog post, then schedules this in GitHub Actions.

• Introduces scripts/generate_article.py to collect RSS entries, call the Gemini AI API, and write a Markdown article.
• Adds .github/workflows/auto_news.yml to run the script every Monday, commit the output, and open a PR automatically.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
scripts/generate_article.py	New script: fetch RSS feeds, prompt Gemini model, save generated Markdown in project
.github/workflows/auto_news.yml	New workflow: weekly schedule, dependencies install, run script, create PR on change

Comments suppressed due to low confidence (2)

.github/workflows/auto_news.yml:3

• The YAML indentation under on is incorrect, so the workflow won't parse. It should be formatted as:

on:
  schedule:
    - cron: '0 0 * * 1'
  workflow_dispatch:

on:  schedule:    # 毎週月曜日のUTC 0時0分（= 日本時間の月曜朝9時）に実行    - cron: '0 0 * * 1'    # 手動での実行も可能にする  workflow_dispatch:

scripts/generate_article.py:18

• There are no tests covering the new fetch_recent_articles, generate_article_with_ai, or save_markdown functions. Consider adding unit tests to validate RSS parsing, prompt generation, and file writing.

def fetch_recent_articles():