fix(ci): drop fork allowlist entries duplicated by #78 and #80

[lukemaj]

What: main's fork check passes again by removing allowlist entries that #78 and #80 both added.
Why: #78 and #80 fixed the same fork-check gaps at the same time, so AGENTS.md and ThreadPullRequestsPanel.tsx were each listed twice and fork-features fails with issues-links: duplicate upstreamFiles.
So what: Nothing further; #80's entries stay as the single owners.

Elon record

• Requirements and who asked: planner, 2026-09-29: main's fork check fails after docs: AGENTS.md lets agents stage the merged build on the maintainer's Mac #78 and fix(ci): main passes the fork stack and unused-code checks again #80 merged concurrently.
• Deleted: docs: AGENTS.md lets agents stage the merged build on the maintainer's Mac #78's duplicate entries and its fork-agent-instructions feature; fix(ci): main passes the fork stack and unused-code checks again #80 already owns AGENTS.md and the panel file.
• Bottleneck: every PR shows a red fork check it did not cause.
• Checked myself: bash scripts/fork-check.sh on main fails with the duplicate; exit 0 with this change.

Proof

• bash scripts/fork-check.sh: exit 0.

🤖 Generated with Claude Code

[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	13.5 KiB	13.5 KiB	−8 B (−0.1%)	15.1 KiB	✅
Codex	Thread snapshot wire	7.1 KiB	7.1 KiB	−2 B (−0.0%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	6.4 KiB	6.4 KiB	−6 B (−0.1%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	56.2 KiB	56.2 KiB	0 B (0.0%)	66.4 KiB	✅
Codex	Live turn messages	9	9	0 (0.0%)	21	✅
Claude	Total thread wire	13.5 KiB	13.5 KiB	−14 B (−0.1%)	15.1 KiB	✅
Claude	Thread snapshot wire	7.1 KiB	7.1 KiB	+2 B (+0.0%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	6.4 KiB	6.4 KiB	−16 B (−0.2%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	57.0 KiB	57.0 KiB	0 B (0.0%)	66.4 KiB	✅
Claude	Live turn messages	9	9	0 (0.0%)	21	✅

Baseline: cd93d8a · PR result: e97a327 · Source CI: success

Scenario and decoded snapshot size

10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.

• Codex decoded thread snapshot: 113.9 KiB
• Claude decoded thread snapshot: 114.6 KiB

Updated in place by a trusted workflow. PR artifacts are strictly validated and never executed.