feat(workflow-executor): add user context and date/time to AI prompts

[Scra3]

Summary

Every AI call now includes a SystemMessage with user context and current date/time:

Current user: John Doe (john@example.com, id: 42)
Role: admin | Team: operations
Current date and time: 2026-04-03T12:34:56.789Z (UTC)

Added to all executors: condition, read-record, update-record, trigger-action, load-related-record, mcp, and record selection.

Why

• AI can make date-aware decisions ("update last visit date")
• AI knows who is executing the workflow (useful for user-specific logic)
• Matches what the frontend provides to the AI

Test plan

• yarn workspace @forestadmin/workflow-executor tsc --noEmit — compiles
• yarn workspace @forestadmin/workflow-executor test — 427 tests pass

🤖 Generated with Claude Code

Note

Add user context and current UTC timestamp to AI prompts in workflow executors

• Adds a new buildContextMessage() method to BaseStepExecutor that returns a SystemMessage containing the executing user's name, email, id, role, team, and current UTC timestamp in ISO format.
• Prepends this context message to all LLM invocations across all step executor types: condition, load-related-record, MCP, read-record, trigger-record-action, and update-record.
• Updates all corresponding executor tests to account for the additional leading SystemMessage.

^{Macroscope summarized 0fe5ea4.}

[qltysh]

2 new issues

Tool	Category	Rule	Count
qlty	Duplication	Found 17 lines of similar code in 2 locations (mass = 97)	2

[qltysh]

Coverage Impact

This PR will not change total coverage.

Modified Files with Diff Coverage (1)

Rating	File	% Diff	Uncovered Line #s
	packages/workflow-executor/src/executors/base-step-executor.ts	100.0%
	Total	100.0%

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