Refactor actions.go to use NewTool pattern

Convert all 14 tool functions in actions.go to use the NewTool pattern with
ToolDependencies for dependency injection. This is part of a broader effort
to standardize the tool implementation pattern across the codebase.

Changes:
- ListWorkflows, ListWorkflowRuns, RunWorkflow, GetWorkflowRun
- GetWorkflowRunLogs, ListWorkflowJobs, GetJobLogs
- RerunWorkflowRun, RerunFailedJobs, CancelWorkflowRun
- ListWorkflowRunArtifacts, DownloadWorkflowRunArtifact
- DeleteWorkflowRunLogs, GetWorkflowRunUsage

The new pattern:
- Takes only translations.TranslationHelperFunc as parameter
- Returns toolsets.ServerTool with Tool and Handler
- Handler receives ToolDependencies for client access
- Enables better testability and consistent interface

Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>

Author: SamMorrowDrums