Compact Summary - 2026-01-20

Quick Status

✅ Completed: Tasks 1-8 (Backend multi-user support) 🔜 Next: Task 9 - Settings page UI 🧪 Tests: 15/15 passed 🚀 Server: Running on http://0.0.0.0:8000

What Was Done

Database Changes (database.py)

Added user_id INTEGER DEFAULT 1 to exercise/meal/sleep/weight tables
Implemented user CRUD functions
Implemented data clear functions with preview
Updated all add/get functions to support user_id parameter

API Changes (app.py)

Added 7 user management endpoints
Added 2 data management endpoints
Updated all GET/POST data endpoints to use active user pattern
Added Pydantic models: UserResponse, UserInput, DataClearInput

Tests

All 15 tests passing (7 UserDB + 2 Migration + 6 DataClear)

Key Architecture

Active User Pattern: Only one user active at a time, all data operations scoped to active user
Default user_id = 1: Backward compatibility with existing data
Data Isolation: Each user's data completely isolated by user_id

Critical Fix

Issue: Missing user_id column in tables Solution: Added user_id INTEGER DEFAULT 1 to CREATE TABLE statements in init_db()

Next Steps

Task 9: Create settings page UI with ui-ux-pro-max design
Task 10: Add settings link to navigation
Task 11: Run integration tests

Design System

Primary: #3B82F6 (Blue)
CTA: #F97316 (Orange)
Background: #F8FAFC
Typography: Lora (headings) + Raleway (body)

API Endpoints Added

User Management:

GET    /api/users              GET    /api/users/active
GET    /api/users/{id}         POST   /api/users
PUT    /api/users/{id}         DELETE /api/users/{id}
POST   /api/users/{id}/activate

Data Management:

POST   /api/data/preview-delete
POST   /api/data/clear

Full Context

See: /docs/context/session-2026-01-20-settings-page.md

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