RAG-04 | Precedent Injection

[Manish281005]

Task: RAG-04 | Precedent Injection

Estimated Hours: 1h | Owner: MK | Priority: P0 | Status: Completed

Definition:
Wire RAG retrieval output into draft generation prompt. Inject top-3 precedents as context to guide GPT-4o draft generation. Store precedent metadata in draft response for UI display (citations).

Acceptance Criteria:

• Accepts {email: str, precedents: [{subject, snippet}]}
• Injects into draft prompt: "Here are 3 similar emails you've sent: [subjects]. Use their tone/structure."
• Draft response includes precedent_citations: [{email_id, subject, similarity}]
• Graceful fallback if precedents empty (proceeds without)
• No duplicate precedents in injection