### CHANGES
- Extract `getGeminiRegion` method for region determination
- Use `getGeminiRegion` in `sendGemini` for location setting
- Apply `getGeminiRegion` in `sendStreamGemini` for consistency
- Extract model fetching logic into a dedicated helper function.
- Improve response body cleanup during Vertex AI pagination loops.
- Remove unused time import and timeout constant from models.
- Streamline listPublisherModels function by delegating API requests to helper.
- Dynamic model listing from Vertex AI Model Garden API
- Support for both Gemini (genai SDK) and Claude (Anthropic SDK) models
- Curated Gemini model list (no API available to list them)
- Web search support for Gemini models
- Thinking/extended thinking support for Gemini
- TopP parameter support for Claude models
- Model filtering (excludes imagen, embeddings, legacy models)
- Model sorting (Gemini > Claude > DeepSeek > Llama > Mistral > Others)
# CHANGES
- List supported native and OpenAI-compatible AI provider integrations
- Document dry run mode for previewing prompt construction
- Explain Ollama compatibility mode for exposing API endpoints
- Detail available prompt strategies like chain-of-thought and reflexion
- Add documentation for the generate_changelog command-line tool used during CI/CD to update the ChangeLog
- Update table of contents to reflect new documentation sections
- Rename `code_helper` command to `code2context` throughout codebase
- Update README.md table of contents and references
- Update installation instructions with new binary name
- Update all usage examples in main.go help text
- Update create_coding_feature pattern documentation
- Rename cmd directory from code_helper to code2context
## CHANGES
- Add SQLite datetime formats to version date parsing logic
- Loop through multiple date formats until one succeeds
- Include SQLite fractional seconds format support
- Prevent early return when version has PR numbers to output
- Simplify error handling for date parsing failures
- Remove duplicate database sync command from version workflow
- Simplify changelog generation to single process-prs step
- Keep database file staging after changelog generation
- Change last_pr_sync to use versionDate instead of time.Now()
- Ensure future runs fetch PRs merged after the version date
- Add clarifying comments explaining the sync timing logic
- Add cache metadata update step before staging release changes
- Set last_processed_tag to current version being processed
- Update last_pr_sync timestamp to current time
- Include warning messages for failed metadata updates
- Ensure metadata commits alongside other release changes
- Consolidate git worktree fixes into single PR #1917 entry
- Standardize commit message prefixes using conventional commits format
- Rewrite bullet points in imperative mood throughout changelog
- Condense verbose multi-line entries into concise single bullets
- Reorder PR entries chronologically within version sections
- Remove redundant Co-Authored-By attribution lines from entries
- Fix inconsistent date formats in version headers
- Simplify dependency update descriptions to essential information
- Update changelog database binary with new entry formatting
