A8: Source Expansion — Lifesum extra + shared table finalization

[EduardPetraeus]

Problem

Lifesum has 3 CSV files not yet ingested: exercise.csv, weighins.csv + bodyfat.csv, bodymeasures.csv.

Proposed Solution

• silver.body_measures from bodymeasures.csv (waist, chest, etc.)
• Lifesum exercise.csv → feed into silver.workout (shared table)
• Lifesum weighins.csv + bodyfat.csv → feed into silver.body_measurement (shared table)
• Update semantic contracts for all new silver tables

Dependencies

• A7 (Withings — establishes body_measurement and workout shared tables)

Acceptance Criteria

• All Lifesum data integrated
• Semantic contracts updated
• 10+ tests passing

[EduardPetraeus]

Completed: 4 Lifesum merge SQL (bodymeasures, exercise, weighins, bodyfat), 2 new dbt models, sources_config updated, BK hash fix. 35 tests. Merged to main via parallel build.