fix(infra): emit declarations for rebuild:types (SD-2925)

[caio-pizzol]

What changed

• Make @superdoc/geometry-utils and @superdoc/dom-contract emit declaration artifacts during their package build.
• Keep each package's TypeScript build info under dist/ so deleting generated output also resets incremental state.
• Serialize pnpm run rebuild:types enough that declaration producers build before @superdoc/painter-dom, avoiding the layout-bridge / painter-dom cycle race.

Why

pnpm run rebuild:types failed in a clean worktree because @superdoc/measuring-dom project-references @superdoc/geometry-utils and expects geometry-utils/dist/index.d.ts to exist. The package tsconfig declared composite declaration output, but the build script used --noEmit, so the referenced declaration output was never written.

After fixing geometry-utils, the same mismatch surfaced for @superdoc/dom-contract, and the root rebuild script could still run painter-dom before layout-bridge had emitted its declarations. This PR fixes the declaration producers and the rebuild ordering.

Verification

• pnpm run rebuild:types
• pnpm run type-check
• git diff --check

[linear]

SD-2925 rebuild:types fails because geometry-utils build does not emit declarations

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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🎉 This PR is included in superdoc-sdk v1.9.0