ci: sweep pre-existing empty bot-opened issues on schedule

[groupthinking]

Canonical issue

Closes #1548

Outcome

The empty "Addressing Issues" shells opened by linear-code[bot] before the auto-close from #1574 shipped (#1277, #1522, #1523, #1548, #1552, #1553) get closed automatically, and any future shell that slips past a failed opened run is self-healed by a weekly sweep.

Scope

• Included: a sweep-empty-bot-issues job in issue-triage.yml (weekly cron + workflow_dispatch) that closes open bot-opened issues with an empty body, using the same criteria and comment as the existing opened handler.
• Explicitly excluded: any change to the opened-trigger behavior; closing issues with real content or human authors.

Risk

• Risk level: low
• Failure mode: an issue that is bot-opened with an empty body but tracks real work gets closed as not_planned; the close comment invites reopening with a description.
• Rollback: revert this commit.

Verification

• YAML lint passes on the workflow file
• Manual workflow_dispatch run after merge to perform the initial backfill

Production evidence

Not applicable — CI workflow change only; effect is observable via the dispatch run closing the six open shells listed above.

Agent handoff

• One canonical issue is linked
• No competing PR implements the same issue
• Acceptance criteria are satisfied
• Required checks pass on the current head
• Human decision is requested only for product, security, irreversible infrastructure, or production approval

[linear-code]

GRV-421

[vercel]

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Project	Deployment	Actions	Updated (UTC)
v0-uvai	Canceled	v0	Aug 30, 2026 11:06pm

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[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Snapshot Warnings

⚠️: No snapshots were found for the head SHA 2853bd2.

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