### CHANGES
- Import `sort` and `strings` packages for sorting functionality.
- Create a copy of groups for stable sorting.
- Sort groups alphabetically in a case-insensitive manner.
- Create a copy of items within each group for sorting.
- Sort items alphabetically in a case-insensitive manner.
- Iterate over sorted groups and items for display.
CHANGES:
* Return summary text from `ParseFileChanges` separately.
* Update `chatter` to use returned summary text.
* Update tests to match new function signature.
## CHANGES
- Add FileChangesMarker constant for file changes section
- Update parser to use new constant marker
- Improve error messages with dynamic marker reference
- Update tests to use new marker format
- Update system documentation with new marker syntax
CHANGES:
- Replace deprecated io/ioutil with modern alternatives
- Add file change parsing and validation system
- Create secure file application mechanism
- Update chatter to process AI file changes
- Improve create_coding_feature pattern documentation
## CHANGES
- Add prompt strategies like Chain of Thought (CoT)
- Implement strategy selection with `--strategy` flag
- Improve README with platform-specific installation instructions
- Fix web interface documentation link
- Refactor git operations with new githelper package
- Add `--liststrategies` command to view available strategies
- Support applying strategies to system prompts
- Fix YouTube configuration check
- Improve error handling in session management
- Add InputHasVars field to ChatRequest struct
- Only process template variables in user input when flag is set
- Fixes issue with Ansible/Jekyll templates that use {{var}} syntax
This change makes template variable substitution in user input opt-in
via the --input-has-vars flag, preserving literal curly braces by
default.
