Clamps ANSI-aware terminal table cells before padding so width-2 graphemes cannot push borders out of alignment in width-1/narrow columns.
Fixes#88556.
Proof:
- node scripts/run-vitest.mjs run packages/terminal-core/src/ansi.test.ts packages/terminal-core/src/table.test.ts
- CI run 26717035619; check-dependencies red only for unrelated current-main deadcode issue ui/src/ui/browser-redact.ts, also red on main run 26717029674. checks-node-agentic-agents-core rerun failed in unrelated src/agents/bash-tools*.test.ts outside this PR diff.
Co-authored-by: Jayesh Betala <jayesh.betala7@gmail.com>