Introduces the 'create' subcommand for agent tasks, allowing users to create agent jobs via the Copilot API. Adds job API client methods, job model, and polling logic to retrieve associated pull requests. Includes tests for various job creation scenarios.
Introduces a new 'list' subcommand under agent-task for listing agent tasks. Implements a Copilot API client for fetching agent sessions and hydrating them with pull request data. Updates PullRequest and PRRepository types to support new fields. Adds dependencies for msgpack and tagparser.
Co-Authored-By: Babak K. Shandiz <babakks@github.com>
Changed the RunE function of the agent-task command to display help output instead of returning nil, improving user guidance when the command is run without arguments.
Introduces a new `agent-task` command under pkg/cmd/agent with strict OAuth (device flow) token validation. Includes comprehensive tests for token source and host validation, and registers the command in the root command set.
