chore(ci): enable TypeScript typechecking in frontend CI workflow

[sriram687]

Description

This PR enables static TypeScript verification (npm run typecheck) within the Frontend GitHub Actions workflow.
Previously, TypeScript checking was intentionally bypassed because of pre-existing type errors in configuration files (such as forge.config.ts and legacy updater modules). Those errors have been fully resolved in recent commits, and tsc --noEmit now compiles with zero errors on the main branch.
Restoring this check ensures that new pull requests cannot merge type-safety regressions or compilation failures into main, improving codebase stability.

Changes

• .github/workflows/frontend.yml:
  • Removed outdated comments regarding legacy type errors.
  • Added the Typecheck project step running npm run typecheck (executes tsc --noEmit) immediately after dependency installation (npm ci) in the test job.

Verification

• Clean run of npm run typecheck verified locally:

  > agent-orchestrator@0.10.3 typecheck
  > tsc --noEmit

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[somewherelostt]

Thanks for contributing to Agent Orchestrator.

This PR is being picked up by the current external contributor on-call pair:

• @illegalcall
• @Pulkit7070

If someone is already working on this, please continue as usual.
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If you need help with review, direction, reproduction, or next steps, please tag @illegalcall and @Pulkit7070 here.

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