feat: replace NotebookLM with Gemini Deep Research in ingest cron

[codercatdev]

Summary

Phase 2 Sprint 3, Task 6: Replace NotebookLM research submission in the ingest cron with Gemini Deep Research via submitResearch() from lib/services/gemini-research.ts.

Changes

app/api/cron/ingest/route.ts

Removed:

• NotebookLMClient and initAuth imports from lib/services/notebooklm/
• enableNotebookLmResearch config lookup
• Entire NotebookLM Step 2 block (~25 lines): notebook creation, source URL adding, research task starting
• researchMeta: { notebookId, taskId } variable and all references
• researchNotebookId and researchTaskId fields from Sanity document creation

Added:

• import { submitResearch } from "@/lib/services/gemini-research"
• enableDeepResearch config lookup (from pipelineConfig singleton)
• Simplified Step 2: single submitResearch(topic, { sourceUrls }) call (~12 lines)
• researchInteractionId variable — stores the interaction ID for polling by check-research cron
• researchInteractionId field on automatedVideo Sanity document

Updated:

• createSanityDocuments signature: researchMeta param → researchInteractionId?: string
• isResearching check uses !!researchInteractionId
• Response JSON: researchInteractionId instead of researchNotebookId

sanity/schemas/documents/automatedVideo.ts

• Added researchInteractionId field (string, hidden) — Gemini Deep Research interaction ID for polling
• Kept researchNotebookId and researchTaskId for backward compatibility with existing documents

Files changed (2 only)

• app/api/cron/ingest/route.ts
• sanity/schemas/documents/automatedVideo.ts

How it works

ingest cron → discoverTrends → dedup → submitResearch(topic, { sourceUrls })
  → returns interactionId → stored on automatedVideo doc (status: "researching")
  → check-research cron polls via pollResearch(interactionId) [Task 5, @research]

[vercel]

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