# Archive Logs
This file contains the mandatory historical log of code, architecture, and logic modifications.
Each entry MUST be formatted chronologically.

## Log Format
### [YYYY-MM-DD HH:MM] Feature/Modification Title
**Purpose:** Why this was modified.
**Modified Files:**
- `path/to/file`

**Test Results:** (if applicable)

### [2026-04-10 13:44] Backend Foundation Setup
**Purpose:** Initialized the Phase 1 backend using Python and SQLite to prepare the environment for API routing.
**Modified Files:**
- `backend/requirements.txt` (NEW)
- `backend/database.py` (NEW)
- `backend/models.py` (NEW)
- `backend/main.py` (NEW)
- `.gitignore` (NEW)

**Test Results:** Installed properly using Homebrew Python venv on Mac. SQLAlchemy models parsed appropriately.

### [2026-04-10 13:47] Core Inventory API (Phase 2)
**Purpose:** Implemented the Pydantic schemas and standard CRUD endpoints for Inventory logic. Built safe Check-in/Check-out operations enforcing immutable Audit Log triggers.
**Modified Files:**
- `backend/schemas.py` (NEW)
- `backend/routers/__init__.py` (NEW)
- `backend/routers/items.py` (NEW)
- `backend/routers/operations.py` (NEW)
- `backend/main.py` (UPDATED)