Add negative evidence replication graph

[IOROHKI]

/claim #17

Summary

• add negative-evidence-replication-graph/, a self-contained Scientific Knowledge Graph Integration slice for failed replications, null results, and inconclusive studies
• model replication reports as first-class graph nodes and score positive support vs negative replication pressure before recommendations are shown
• emit recommendation treatments, entity-page JSON-LD, publication-bias alerts, JSON/SVG demo output, and a short MP4 demo artifact
• add a root README pointer for reviewer discovery

Validation

• node negative-evidence-replication-graph/test.js
• node negative-evidence-replication-graph/demo.js
• node --check negative-evidence-replication-graph/index.js
• node --check negative-evidence-replication-graph/sample-data.js
• node --check negative-evidence-replication-graph/test.js
• node --check negative-evidence-replication-graph/demo.js
• git diff --check
• decoded negative-evidence-replication-graph/demo.mp4 with the imageio-ffmpeg ffmpeg binary

Demo Artifacts

• negative-evidence-replication-graph/demo.mp4
• negative-evidence-replication-graph/demo.svg
• negative-evidence-replication-graph/demo-output.json

[IOROHKI]

@algora-pbc /claim #17

[IOROHKI]

/claim #17