Add buf.build integration and protobuf automation

[cyberstorm-daemon]

Summary

• Add comprehensive buf.build integration with automated protobuf workflows
• Implement buf.gen.yaml for Python code generation from protobuf schemas
• Update Taskfile.yml with complete buf command suite (format, lint, build, generate, push)
• Configure development tooling to handle generated protobuf files properly
• Successfully publish EAS schemas to buf.build/cyberstorm/eas-schemas

Features Added

Buf.build Integration

• buf.gen.yaml: Configured for Python protobuf and gRPC code generation
• Enhanced Taskfile.yml: Added comprehensive buf commands:
  • task buf:format - Format protobuf files
  • task buf:lint - Lint protobuf files
  • task buf:build - Build and validate protos
  • task buf:generate - Generate Python code
  • task buf:push:create - Create new module on buf.build
  • task buf:push:draft - Push with draft label for testing
  • task buf:push - Production push with breaking change checks

Development Tooling Updates

• Updated .flake8: Exclude generated protobuf files from linting
• Updated .gitignore: Ignore generated files (can be regenerated from buf.build)
• Formatted protobuf files: Applied buf format for consistency

Published Schemas

• EAS schemas now available at buf.build/cyberstorm/eas-schemas
• Other projects can consume these schemas as dependencies
• Supports Python, TypeScript, Go, and other language bindings

Usage

# Generate Python protobuf files
task buf:generate

# Push updates to buf.build (after authentication)
task buf:push:draft  # For testing
task buf:push        # For production

Breaking Changes

None - this is purely additive functionality.

Test Plan

• All existing tests pass
• Buf linting and formatting passes
• Code generation works correctly
• Schemas successfully published to buf.build
• Quality checks (flake8, black, mypy) pass