Add AI context files

[jaredmixpanel]

This pull request enhances the documentation and development workflow for the Mixpanel Flutter SDK by introducing detailed architectural overviews, a codebase map, and implementation guides for adding new methods. These updates aim to improve developer experience, maintainability, and extensibility of the SDK.

Documentation Updates

Architecture Documentation

• .claude/context/architecture/ARCHITECTURE.md: Added a comprehensive overview of the Mixpanel Flutter SDK's architecture, including its layered design, platform-specific implementations, and event flow. This documentation highlights key design decisions, platform dependencies, and future considerations.
• .claude/context/architecture/system-design.md: Provided a detailed system architecture diagram and request flow example for tracking events, emphasizing separation of concerns, platform parity, and type safety principles.

Codebase Overview

• .claude/context/codebase-map.md: Created a codebase map outlining the project structure, key entry points, configuration files, and platform-specific implementation details. This serves as a guide for navigating and understanding the SDK's organization.

Implementation Guides

Adding New Methods

• .claude/context/commands/add-people-method.md: Documented step-by-step instructions for adding new methods to the People class, including Dart API updates, platform-specific implementations, and testing.
• .claude/context/commands/add-tracking-method.md: Provided a detailed guide for adding new tracking methods to the SDK, covering Dart, Android, iOS, and Web implementations, along with testing and example app integration.

[Copilot]

Pull Request Overview

This PR adds comprehensive AI configuration and guidance files for agent-based workflows (CLAUDE.md, AGENTS.md, Copilot instructions, Cursor rules, prompts, and CI workflows), and updates project configs to support linting.

• Introduces AI agent instruction files and contextual rules for Claude, Copilot, and Cursor
• Adds new GitHub Action workflows and update existing CI analysis flags
• Updates pubspecs with flutter_lints and adjusts .gitignore

Reviewed Changes

Copilot reviewed 39 out of 42 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pubspec.yaml	Added flutter_lints to dev_dependencies
example/pubspec.yaml	Bumped SDK upper bound and added flutter_lints
example/.gitignore	Removed generated_plugin_registrant.dart ignore
example/test/AGENTS.md	Added test generation guide
CLAUDE.md	Added high-level AI guidance for Claude
AGENTS.md	Added AI agent instructions for Mixpanel Flutter SDK
.github/workflows/flutter.yml	Adjusted flutter analyze to --no-fatal-infos
.github/workflows/copilot-setup-steps.yml	New workflow for Copilot setup validation
.github/prompts/add-analytics-method.prompt.md	Added prompt for adding analytics methods
.github/instructions/test-generation.instructions.md	Added test generation instructions
.github/instructions/code-review.instructions.md	Added code review instructions
.github/copilot-instructions.md	Added Copilot coding standards
.github/copilot-instructions-guide.md	Added Copilot integration guide
.cursor/rules/...	Added Cursor behavioral rules for workflows and components
.claude/context/...	Added Claude context and workflow documentation

Comments suppressed due to low confidence (2)

example/.gitignore:34

• The generated_plugin_registrant.dart file is usually auto-generated and should remain ignored to avoid committing build artifacts; consider re-adding this to .gitignore.

# Web related

.github/workflows/flutter.yml:22

• [nitpick] Suppressing infos may hide potential issues; consider making certain lint warnings fatal or adjusting lint rules to ensure quality checks remain strict.

      - run: flutter analyze --no-pub --no-current-package --no-fatal-infos lib