Create snap-classify.yaml sub-recipe

[BryanChasko]

Agent Task

Agent: ellow-gander-mechanic
Depends on: Add ByteDance models to goose-proxy MODEL_MAP
Branch: feat/snap-classify-recipe
Source: specs/marvel-snap-pipeline/tasks.md

Acceptance Criteria

• Lead model: bytedance-vision, worker: llama3.1:8b
• Routes through goose-proxy
• Classifies images as snap/not-snap with confidence score
• Threshold 0.7 configurable via env var
• Attaches CSWR via prompt-ledger.sh

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Generated from specs/marvel-snap-pipeline/tasks.md by generate-task-issues.py