To simplify UI code we are going to expose both Harness API and Standalone API (restricted to harness embedded functionalities) when running in harness mode.
Furthermore, this PR adds a middleware that allows us to reuse standalone Handlers for Harness API for operations that don't require any request/response manipulation.
This commit has the following changes:
- API for listing branches
- Improve performance of content API for dir type responses with includeCommit=true
- swagger for git operations
- fix file names from camelCase to kebab_case
