feat: dSYM support

[TheRealAgentK]

#39 - Adds dSYM support to raygun-cli

Description 📝

• Purpose: Adds supporting for uploading dSYM files from iOS to Raygun via CLI
• Approach: Adds new flow with commands, arguments and API layer + documentation and tests. Also sorted out dependabot updates.

Type of change

• New feature (non-breaking change which adds functionality)

Test plan 🧪

• Tested upload with various error types (wrong EAT, invalid zip etc) and good flow.

Author to check 👓

• Project and all contained modules builds successfully
• Self-/dev-tested
• Unit/UI/Automation/Integration tests provided where applicable
• Code is written to standards
• Appropriate documentation written (code comments, internal docs)

Reviewer to check ✔️

• Project and all contained modules builds successfully
• Change has been dev-/reviewer-tested, where possible
• Unit/UI/Automation/Integration tests provided where applicable
• Code is written to standards
• Appropriate documentation written (code comments, internal docs)

[Copilot]

Pull request overview

This PR adds dSYM file upload support for iOS crash reporting symbolication, expanding the CLI's capabilities to handle iOS debugging symbols alongside existing Android ProGuard and Flutter obfuscation symbol support.

Key Changes:

• Implements new dsym command with file upload capabilities
• Adds API client layer for dSYM uploads to Raygun
• Provides comprehensive test coverage with mocked HTTP client

Reviewed changes

Copilot reviewed 10 out of 12 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
lib/src/dsym/dsym_command.dart	Defines CLI command structure with argument parsing for app-id, external-access-token, and path
lib/src/dsym/dsym_api.dart	Implements HTTP multipart upload logic for dSYM zip files
lib/src/dsym/dsym.dart	Contains business logic for validation and orchestrating the upload process
test/dsym/dsym_command_test.dart	Unit tests for command execution with various parameter combinations
test/dsym/dsym_api_test.dart	Tests API client behavior including success cases, error codes, and exception handling
test/dsym/dsym_command_test.mocks.dart	Generated mock for DsymApi
test/dsym/dsym_api_test.mocks.dart	Generated mock for HTTP Client
lib/raygun_cli.dart	Exports new dsym command for CLI access
README.md	Documents dsym command usage with examples
AGENT.md	Updates architecture documentation to reflect new command and testing patterns

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[miquelbeltran]

All good!