Feature: AppStore / Update Repository Generation

[mark-e-deyoung]

Objective

Generate distribution metadata (appcasts, manifests) automatically during the packaging phase.

Rationale

Building the .exe is only half the battle. Distributing it requires metadata for auto-updaters (WinSparkle, Squirrel) and download pages.

Strategy

• New Verb: wbab publish (or extend package).
• Generators:
  • WinSparkle: Generate appcast.xml with version, release notes, and download URL.
  • Generic: Generate manifest.json for custom updaters.
  • Static Site: Generate a simple index.html landing page linking to the latest release.
• Core Logic: Python-based generation in core/wbab_core.py.

Acceptance Criteria

• wbab package can optionally output an appcast.xml.
• Output directory is ready for static hosting (S3/GitHub Pages).