fix(ci): allow organization members to run mobile previews

[khoi]

Problem

GitHub reports organization maintainers as MEMBER, so the mobile preview workflow's OWNER requirement skips their PRs even when the mobile deployment label is present. For example, PR #37 reports author khoi with author_association: MEMBER.

Change

Accept MEMBER alongside OWNER in the existing preview eligibility condition. The PR must still come from this repository and carry 🚀 Mobile Continuous Deployment; unrelated label events still skip.

Scope and approval

This is a focused fix to an established opt-in preview workflow, requested by the maintainer. It corrects the author-association check for an organization-owned repository.

Verification

mise exec -- actionlint .github/workflows/mobile-eas-preview.yml, vp fmt --check .github/workflows/mobile-eas-preview.yml, and git diff --check passed. Evaluating the workflow condition against eight representative contexts allowed owners and organization members with the preview label, and rejected collaborators, contributors, forks, missing labels, and unrelated label events. The native build and deployment were not run.

Implemented with gpt-6.1-sol through the Codex harness in Supacode.

[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	4.9 KiB	4.9 KiB	+40 B (+0.8%)	6.8 KiB	✅
Codex	Thread snapshot wire	3.7 KiB	3.7 KiB	0 B (0.0%)	4.9 KiB	✅
Codex	Live turn WebSocket wire	1.1 KiB	1.2 KiB	+40 B (+3.4%)	2.0 KiB	✅
Codex	Live turn WebSocket decoded	20.4 KiB	20.4 KiB	+41 B (+0.2%)	29.3 KiB	✅
Codex	Live turn messages	1	2	+1 (+100.0%)	8	✅
Claude	Total thread wire	4.9 KiB	4.9 KiB	+41 B (+0.8%)	6.8 KiB	✅
Claude	Thread snapshot wire	3.7 KiB	3.7 KiB	0 B (0.0%)	4.9 KiB	✅
Claude	Live turn WebSocket wire	1.2 KiB	1.2 KiB	+41 B (+3.5%)	2.0 KiB	✅
Claude	Live turn WebSocket decoded	20.7 KiB	20.8 KiB	+41 B (+0.2%)	29.3 KiB	✅
Claude	Live turn messages	1	2	+1 (+100.0%)	8	✅

Baseline: 5a64a46 · PR result: 2b0a0f7 · 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: 106.1 KiB
• Claude decoded thread snapshot: 106.4 KiB

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