feat: add extraExcludes parameter to getGitDiff

[Alok650]

Adds an optional extraExcludes parameter to getGitDiff so callers can pass additional pathspec exclusions alongside the built-in .autodocs/ exclusion. Useful for repos that want to exclude generated files, vendored directories, or large binary assets from the diff analysis.

Changes

• getGitDiff now accepts extraExcludes: string[] (defaults to [])
• Exclusions are combined with the built-in .autodocs/ exclude and joined into a single git diff command

[github-actions]

DocSync detected doc sections that may need updating.

File: docs/api.md — #### getGitDiff

- *function*
- 
- Runs `git diff` between the specified `base` ref and `HEAD` within `repoDir`, excluding the auto-generated docs directory from the comparison, and returns the parsed result as an array of `ChangedFile` objects. Accepts the repository directory path and an optional base ref that defaults to `GIT.DEFAULT_BASE_REF`. The raw diff output is passed to `parseGitDiff` to produce the structured return value.
+ Runs `git diff` between the specified `base` ref and `HEAD` within `repoDir`, excluding the auto-generated docs directory and any additional paths provided via `extraExcludes` from the comparison, and returns the parsed result as an array of `ChangedFile` objects. Accepts the repository directory path, an optional base ref that defaults to `GIT.DEFAULT_BASE_REF`, and an optional array of extra exclude patterns that defaults to an empty array. The raw diff output is passed to `parseGitDiff` to produce the structured return value.

To apply: comment /docsync apply getGitDiff — or dismiss with /docsync dismiss.

[Alok650]

/docsync apply getGitDiff

[Alok650]

/docsync apply DocSyncConfig