Remove latest_activity from repo list and get commands

[jumboduck]

The field always returns null in production and is being removed
from the API response (kosli-dev/server#5180).

Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com

[claude]

Claude finished @jumboduck's task in 1m 34s —— View job

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PR Review: Remove latest_activity from repo list and get commands

• Run static analysis (build, vet, mod tidy)
• Read changed files and review code
• Post review feedback

Static Analysis

All checks pass:

• go build ./... — clean
• go vet ./... — clean
• go mod tidy — no drift

Review

Clean, straightforward removal. No issues found.

Correctness: Both getRepo.go and listRepos.go are updated consistently — the field is removed from the table header, row formatting, and the nil-check logic in the list command. No remaining references to latest_activity, LAST_ACTIVITY, or Latest Activity anywhere in the codebase (including tests).

Scope: The listRepos.go change correctly removes the nil-guard that was only needed for latest_activity, simplifying the loop body. The format string arity matches the updated column count in both files.

Tests: Existing test files (getRepo_test.go, listRepos_test.go) don't reference the removed field, so no test updates are needed.

LGTM — this is a clean field removal tied to the server-side change (kosli-dev/server#5180).