tip: keep one row when message re-sent same id (#51033) - #163

Hey! Your PR title tip: keep one row when message re-sent same id (#51033) doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

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READY_UPSTREAM

Rechecked before promotion:

• upstream PR fix(tui): keep one row when a message is re-sent with the same id anomalyco/opencode#51033 is open
• current upstream head exactly matches Grok's tested tip: 29b50abfd5e97693851ecddfdad5d225a5436c30
• no prior kvnloo validation comment is present
• fail → pass → restore evidence in this fork PR applies to that exact head

Use local gh/Hermes to post the validation note upstream; the ChatGPT GitHub App gets 403 on anomalyco/opencode. Do not open a duplicate PR.