Execute resource-ask close-with-summary on older 8-PR backlog (default executes 2026-06-10 12:00 UTC if no reply)

Execute the resource-ask close-with-summary default announced in the 2026-06-08 12:26 UTC Carson DM standup. Per the single-shot ask posted 2026-06-01 04:43 UTC in C079JB43ENA ts 1780289017.407609: hold-through-2026-06-08 expired with zero replies; the June 8 standup announced the default execution at 2026-06-10 12:00 UTC. PRE-EXECUTION ABORT-ON-REPLY CHECK (MANDATORY): 1. Read last 25 Carson DMs from D0B0980TR88; check for any Carson message since 2026-06-08T12:26:36Z (the standup ts 1780921596.805069). 2. Read resource-ask thread in C079JB43ENA ts 1780289017.407609 for any new reply since 2026-06-01. 3. If ANY reply found in either channel: PATCH this task to status=completed with result.aborted_by_reply=true and result.reply_summary=<one-line summary>. Do NOT execute the close. Post nothing. 4. If NO reply found: proceed with close execution. CLOSE EXECUTION (only if no reply found): For each of #9886, #9932, #9353, #10401, #10498, #10499, #10508, #10824: (a) Post one in-PR comment: "Parking this PR as no-reviewer per resource-ask close-with-summary (single-shot ask 2026-06-01 hold-through-2026-06-08, zero replies, default executed 2026-06-10 12:00 UTC). Linear summary: <link>. Will reopen if reviewer capacity becomes available." (b) Create a Linear ticket capturing the work scope: title "Parked PR #<N>: <brief title>", body includes branch name, PR link, summary of changes, current CI state, reviewer-pool notes. Tag for triage when capacity exists. (c) Close the PR via gh pr close (do NOT delete the branch). FINAL: Post one confirming reply in the resource-ask thread (NOT a new top-level message): "Per the 2026-06-08 standup default (no reply received), executed close-with-summary on the older 8: <list of 8 PRs with their new Linear ticket IDs>. Branches preserved; will reopen if reviewer capacity becomes available." Mandatory step (0): eval "$(~/bin/gh-fleet-token.sh)" as isolated standalone-line, verify GH_TOKEN length=40 on next line. Atomic completion: PATCH this task to status=completed with result.closed_prs=[array of PR numbers], result.linear_ticket_ids=[array of Linear IDs], result.aborted_by_reply=false (or true if aborted), result.confirming_slack_ts=<ts>, result.executed_at=<iso ts>. Send-side window guard: do NOT execute before 2026-06-10T11:50:00Z.