fix(ci): make typecheck follow the project references

[itsmunzir]

What

pnpm run typecheck (the CI "Typecheck" step) runs tsc --noEmit. The root tsconfig.json has "files": [] and only references tsconfig.app.json and tsconfig.node.json. Without -b, tsc doesn't follow references, so the step type-checks nothing and always passes.

To check, I added a file with a deliberate error on main:

const x: number = "nope";

Command	Exit
tsc --noEmit (current typecheck)	0 — the error isn't reported
tsc -b	2 — TS2322: Type 'string' is not assignable to type 'number'

build already runs tsc -b, but the build job is skipped on pull requests, so a type error would only surface after merging.

Change

"typecheck": "tsc -b", the same check build runs. Both referenced configs already set noEmit: true, so nothing is emitted; tsc -b only writes its .tsbuildinfo files under node_modules/.tmp/, as build does today.

main is clean under the real check (0 errors), so this doesn't turn CI red.

Not in this PR

tsconfig.app.json includes src but only a few files under tests/, so most test files still aren't type-checked. Widening that is a separate change and may surface existing errors.

AI assistance disclosure

I made this change with help from Claude Code: it found the issue, verified both commands and drafted this description, and the change was reviewed before this PR was opened.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

The change switches typecheck from tsc --noEmit to tsc -b. The root tsconfig.json has "files": [] and only project references, so the old command checked nothing. tsc -b follows the references to tsconfig.app.json and tsconfig.node.json, matching what the build script already runs. Both referenced configs set noEmit: true and write only .tsbuildinfo under node_modules/.tmp/. The only other caller is the CI step in .github/workflows/ci.yml, which needs no change.

Files Reviewed (1 file)

• package.json

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_{Reviewed by claude-sonnet-5.5 · Input: 252 · Output: 1.4K · Cached: 152.5K}

_{Review guidance: REVIEW.md from base branch main}