feat: implement AI-assisted rename prompting feature

- Added data model for AI-assisted renaming including structures for prompts, responses, and policies.
- Created implementation plan detailing the integration of Google Genkit into the CLI for renaming tasks.
- Developed quickstart guide for setting up and using the new AI rename functionality.
- Documented research decisions regarding Genkit orchestration and prompt composition.
- Established tasks for phased implementation, including setup, foundational work, and user stories.
- Implemented contract tests to ensure AI rename policies and ledger metadata are correctly applied.
- Developed integration tests for validating AI rename flows, including preview, apply, and undo functionalities.
- Added tooling to pin Genkit dependency for consistent builds.

.gitignore

@@ -5,6 +5,7 @@
 
 # Dependency directories
 vendor/
+node_modules/
 
 # IDE and editor clutter
 .vscode/
@@ -17,7 +18,13 @@ Thumbs.db
 # Temporary files
 *.tmp
 *.swp
+*.log
 
 # Environment files
 .env
 .env.*
+
+# Build outputs
+dist/
+build/
+coverage/