dogfood: record DF-01 public QA

[uncfreak1255-code]

What this records

• explicitly invoked the repo-local LoopSpine skill in a fresh gpt-5.5 session
• verified the merged public README, animated GIF, demo receipt, independent review receipt, and pre-record dogfood report
• recorded a verified clean no-op with zero Sawyer interventions and no incorrect stop

Proof

• GitHub main: 6230d81b6cf918a76c9a3389cbe43175e316cd81
• README: HTTP 200; main and pinned commit matched
• GIF: HTTP 200 image/gif, 83,018 bytes, GIF89a magic
• demo receipt: success=true; proof and review passed
• independent review: verdict=pass, zero findings
• elapsed time to proof: 73 seconds
• npm test: passed

Pilot metrics after DF-01

• progress: 1/10
• verified completion: 100%
• Sawyer intervention: 0%
• median time to proof: 1.22 minutes
• incorrect stop: 0%

Closes no issue. The ten-task pilot remains open, and this PR does not install or promote LoopSpine globally.