Replaces the fragile regex-based HTML cleaning logic with a proper HTML parser using `golang.org/x/net/html`. The previous implementation was unreliable and could not correctly handle malformed tags, script content, or a wide range of HTML entities.
This new approach provides several key improvements:
- Skips the content of `
Removes the `Get` prefix from exporter methods (e.g., GetSupportedFormat -> SupportedFormat) to better align with Go conventions for simple accessors.
Introduces `context.Context` propagation through the application, starting from `ProcessCourseFromURI` down to the HTTP request in the parser. This makes network operations cancellable and allows for setting deadlines, improving application robustness.
Additionally, optimizes the HTML cleaner by pre-compiling regular expressions for a minor performance gain.
Introduces a modular exporter pattern supporting DOCX and Markdown formats
by implementing Exporter interfaces and restructuring application logic.
Enhances CI to install UPX for binary compression, excluding recent macOS
binaries due to compatibility issues.
Enables CGO when building binaries for all platforms, addressing potential
cross-platform compatibility concerns.
Bumps version to 0.1.1.
