Validate template execution results

[Rishabh060105]

Fix TemplateArchiveProcessor execution result validation

This PR adds the runtime validation requested in #135 so TemplateArchiveProcessor fails fast when template logic returns malformed execution output.

Changes

• Added runtime validation in TemplateArchiveProcessor.trigger() before returning execution results
• Added runtime validation in TemplateArchiveProcessor.init() before returning execution results
• Enforced that trigger() returns:
  • result as an object
  • state as an object
  • events as an array
• Enforced that init() returns:
  • state as an object
• Extended test/TemplateArchiveProcessor.test.ts with malformed output cases for:
  • missing result
  • missing state
  • non-array events

Flags

• This PR follows the existing runtime contract used in this repository, where trigger() returns result, state, and events
• Validation is covered using the real TemplateArchiveProcessor test suite rather than mock-only tests

Screenshots or Video

• Not applicable

Related Issues

• Issue Add validation for execution output structure in TemplateArchiveProcessor #135

Author Checklist

• Ensure you provide a DCO sign-off for your commits using the --signoff option of git commit.
• Vital features and changes captured in unit and/or integration tests
• Commits messages follow AP format
• Extend the documentation, if necessary
• Merging to main from Rishabh060105/validate-execution-result

Validation

• node --experimental-vm-modules node_modules/jest-cli/bin/jest.js test/TemplateArchiveProcessor.test.ts --runInBand

[Rishabh060105]

Hi @mttrbrts , I reviewed the changes against the pointers provided in the original issue and updated the branch accordingly.

What changed

• Added runtime validation in TemplateArchiveProcessor.trigger() so malformed execution output now fails fast instead of being returned unchecked
• Added matching runtime validation in TemplateArchiveProcessor.init()
• Covered the new behavior in the real TemplateArchiveProcessor test suite for:
  • missing result
  • missing state
  • non-array events

Validation

• Ran the targeted processor suite:
  • node --experimental-vm-modules node_modules/jest-cli/bin/jest.js test/TemplateArchiveProcessor.test.ts --runInBand
• Ran the full repo test command:
  • npm test