Verification Blocker Fixes

Goal

Get the post-coverage verification slice back to green by fixing the remaining type and build blockers in tag, tabbable, and docx-io, then rerun the relevant checks.

Relevant Learnings

• Filtered package typecheck can still fail until workspace-built exports exist.
• docx-io has hit this exact built-export trap before.

Plan

1. Rerun narrowed tests and filtered typecheck against the current patches.
2. If docx-io still fails, fix the smallest real source or config seam.
3. Run lint:fix.
4. If filtered typecheck is clean but root build is still suspect, build the minimal upstream package graph needed to prove the repo state.

Progress

• Skills reloaded after compaction.
• Relevant learnings checked.
• Waiting on fresh narrowed verification.