chore(deps): autoupdate (needs claude fix)

[github-actions]

The dependency autoupdater failed during builds-and-checks.

Run log: https://github.com/dudko-dev/agent/actions/runs/30135324351

A Claude session has been dispatched to push fixes onto this branch
so the following commands all exit 0:

  npm run typecheck
  npm run format:check
  npm run build
  npm test

Claude will leave a status comment on this PR when it finishes.
PR-checks will re-run on each new commit.

[claude]

Autoupdate compatibility check — results

Initial run: 3 of 4 commands failed.

• npm run typecheck — green on first run.
• npm run format:check — failed: prettier 3.9.6 (bumped from 3.8.4) reformats a union-type line in src/types.ts under a new rule default. Fixed by applying prettier --write (pure formatting, no logic change).
• npm run build — failed: typescript was bumped ^6.0.3 → ^7.0.2. TypeScript 7 is a full compiler rewrite (native/Go-based); its npm package no longer exposes the classic ts.sys / createProgram API that tsup's bundled rollup-plugin-dts needs for dts: true bundling. Build crashed with Cannot read properties of undefined (reading 'useCaseSensitiveFileNames'). tsup 8.5.1 (already the latest release) doesn't support TS7 yet. Fixed by holding typescript back at ^6.0.3 in devDependencies — it's dev/build tooling only, no product/runtime impact, and typecheck/tests are unaffected by this pin.
• npm test — showed 1 failing test (buildModelFromStage ... provider=anthropic, AI_InvalidArgumentError: baseURL must be a non-empty string) on the first run, but this was a false alarm caused by an ANTHROPIC_BASE_URL="" environment variable leaking into my local execution sandbox (unrelated to this repo's test.yml, which sets no such env var). Verified by re-running with that stray var removed: all 134 tests pass, including the anthropic one. No code change was needed for this; flagging in case it looks confusing in a local dev run — it should not reproduce in GitHub Actions CI.

Changes pushed: commit b0a26ac — reverted typescript devDependency to ^6.0.3 and reformatted src/types.ts per the new prettier version. No product logic changed.

Final local verification (clean env, no stray ANTHROPIC_BASE_URL): all four commands green — typecheck ✅, format:check ✅, build ✅, test (134/134) ✅.