A GitHub Action to install StockWise in workflows

[iamsaquib8]

What

People already run scheduled jobs in GitHub Actions for portfolio digests and alerts. A one-line action makes StockWise easy to use there, and the Marketplace listing is another place people find it.

- uses: iamsaquib8/stockwise@v0
- run: stockwise portfolio --json > portfolio.json

Design

• A composite action.yml at the repo root (or a separate setup-stockwise repo): inputs version (default latest); downloads the release archive for the runner's OS/arch, verifies the .sha256, adds it to PATH, caches it with actions/cache (or the tool cache).
• An example workflow in docs/: a weekday 4 pm IST job that runs stockwise alert check and posts to Telegram using repository secrets.
• Publish to the GitHub Marketplace.

Done when

• The action works on ubuntu-latest, macos-latest and windows-latest (tested in CI).
• The docs have a scheduled-digest example.

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Moved from issue #241 to keep the issue tracker for scheduled work. Upvote or comment if you would use this; ideas with demand go back on the roadmap.