feat(workflow-executor): propagate run triggerType for observability

[ShohanRahman]

Add a triggerType ("manual" | "webhook") field to the orchestrator run envelope and carry it through to step execution. Log it when a run starts executing for correlation/debugging.

Definition of Done

General

• Write an explicit title for the Pull Request, following Conventional Commits specification
• Test manually the implemented changes
• Validate the code quality (indentation, syntax, style, simplicity, readability)

Security

• Consider the security impact of the changes made

Note

Propagate triggerType through workflow run execution for observability

• Adds a TriggerType enum (manual, webhook) to execution.ts and extends AvailableStepExecutionSchema to require the field.
• Maps triggerType from ServerHydratedWorkflowRun in run-to-available-step-mapper.ts, defaulting to manual when absent.
• Emits a debug log including triggerType at the start of each step execution in runner.ts.
• Re-exports TriggerType from the package root so consumers can import it directly.
• Behavioral Change: AvailableStepExecution validation now requires a triggerType field; any existing callers constructing this object without it will fail schema validation.

^{Macroscope summarized 26c8333.}

[linear-code]

PRD-613

[qltysh]

1 new issue

Tool	Category	Rule	Count
qlty	Structure	Function with many returns (count = 6): doExecuteStep	1

[qltysh]

Coverage Impact

This PR will not change total coverage.

Modified Files with Diff Coverage (5)

Rating	File	% Diff	Uncovered Line #s
	packages/workflow-executor/src/types/validated/execution.ts	100.0%
	packages/workflow-executor/src/runner.ts	100.0%
	packages/workflow-executor/src/adapters/server-types.ts	100.0%
	...workflow-executor/src/adapters/run-to-available-step-mapper.ts	100.0%
	packages/workflow-executor/src/index.ts	100.0%
	Total	100.0%

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[christophebrun-forest]

Tests : OK
Ok for me.