Enhance the enrichChatMessages function to include optional
global metadata. This allows for injecting global information
into the chat message enrichment process.

- Update function signature to accept globalMetadata
- Merge globalMetadata into the template context

Enhance the functionality of `insertAt` by adding more options to
facilitate better template responses. This includes support for
inserting at various points within lines, items, and surrounding
lines.

- Added insertAt options:
  - "start-of-line"
  - "end-of-line"
  - "start-of-item"
  - "end-of-item"
  - "new-line-above"
  - "new-line-below"
  - "replace-line"
- Updated global metadata structure to support additional options
- Implemented logic for new insertAt cases

- Enhance `.gitignore` to exclude `docs/Library/Core`
- Export utility functions in `editorUtils.ts` for line
  operations based on text position
- Modify `Provider.ts` to handle post-processors in
  `AbstractProvider`, processing data after response is complete
- Update `prompts.ts` to support post-processors in AI prompt
  templates
- Extend `StreamChatOptions` in `types.ts` to include
  `postProcessors` array
- Define `PostProcessorData` type to pass context to post-processors

- Introduced `convertToBulletList` for transforming strings into bullet lists
- Added `convertToTaskList` to ensure each line in a string is a markdown task
- Implemented `indentOneLevel` to indent lines based on the previous line
- Created `removeDuplicateStart` to remove the first line if it's a duplicate

These functions enhance the utility of space scripts, making them more versatile.