Publish Decodex X post for Codex PR 25636

[yvette-carlisle]

Summary

• publish the source-backed @decodexspace operator_impact post for OpenAI Codex PR #25636
• add one 2026-06-04 social_post/v1 published record with final X URL and /photo/1 media readback
• keep generated image binaries out of Git; media evidence is represented by the X media URL in media_refs

Publication

• URL: https://x.com/decodexspace/status/2062336614588944649
• Media readback: https://x.com/decodexspace/status/2062336614588944649/photo/1
• Daily cap: 1/8 for 2026-06-04 Asia/Shanghai after publication

Verification

• jq empty artifacts/social/x/posts/2026-06-04/openai-codex-pr-25636-2026-06-04.json
• cargo run -p decodex --bin decodex -- radar validate artifacts/social/x

Media retention

• The generated PNG was removed from this PR to avoid storing per-post image binaries in Git history.
• If original generated media needs local retention, keep it outside Git under the operator media cache rather than in artifacts/social/x/images/.

Labels

• Repository does not currently provide codex or codex-automation labels; retaining kind:chore only.