explore-modality

name	explore-modality
description	Trace a data modality end-to-end from proto definition through collector, server, and storage
context	fork
agent	Explore

Trace the $ARGUMENTS data modality through the entire system. Report:

1. Proto definition: Find the message type in proto/lifelog.proto and enum in proto/lifelog_types.proto
2. Generated code: Check common/lifelog-proto/src/lib.rs for DataType/Modality trait impls
3. Collector module: Find the collector module that produces this data type in collector/src/modules/
4. Data flow: How does the collector capture → serialize → send this data?
5. Server ingestion: How does the server receive and store this data? Check server/src/ingest.rs and server/src/schema.rs
6. DB schema: What table, fields, and indexes exist for this modality?
7. Query path: Can this data be queried? Check server/src/query.rs
8. Transform: Is there a transform pipeline for this data? Check server/src/transform.rs

Return a concise map showing the data's journey through the system with specific file:line references.