### [2026-04-11 11:45] v1.2.4: Offline Auth & UX Polish
**Purpose:** Implemented local password hash caching for LDAP users to allow login in no-network environments (basements/subsoils). Refined UI by softening password field dots and adding visual indicators (chevrons) to all dropdowns for better affordance.
**Modified Files:**
- `backend/routers/users.py` (LDAP offline cache)
- `frontend/app/admin/page.tsx` (Password/Dropdown UI)
- `frontend/app/login/page.tsx` (Password UI)
- `frontend/app/inventory/page.tsx` (Dropdown UI)
- `frontend/app/page.tsx` (Dropdown UI)
- `frontend/components/IdentityCheckOverlay.tsx` (Password UI)
- `VERSION.json`

### [2026-04-11 11:30] v1.2.3: System-Wide UI Homogenization

### [2026-04-11 11:21] v1.2.2: UI Readability & Density Optimization

### [2026-04-10 21:59] v1.2.1: Infrastructure & UI Dynamic Versioning

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

### [2026-04-10 18:43] v1.2.0: Categories, Types and LDAP Framework
**Purpose:** Implemented structured category groups and specific item types. Fixed PBKDF2 hashing compatibility for Mac/Python 3.14. Integrated LDAP authentication framework. Established master/dev/vX Git rules.
**Modified Files:**
- `backend/models.py`
- `backend/schemas.py`
- `backend/main.py`
- `backend/routers/categories.py`
- `backend/routers/users.py`
- `frontend/app/page.tsx`
- `frontend/components/AIOnboarding.tsx`
- `VERSION.json`
- `requirements.md`
- `AI_RULES.md`
- `dev_docs/PLAN_HISTORY.md`
- `dev_docs/SESSION_HISTORY.md`

**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)

### [2026-04-10 13:58] AI Coordination & Bulk Operations (Phase 3)
**Purpose:** Established Multi-AI handover protocol with archival logic. Extended backend to support bulk check-outs and trash operations with mandatory audit logging.
**Modified Files:**
- `dev_docs/SESSION_STATE.md` (NEW)
- `dev_docs/SESSION_HISTORY.md` (NEW)
- `AI_RULES.md` (UPDATED)
- `backend/schemas.py` (UPDATED)
- `backend/routers/operations.py` (UPDATED)

**Test Results:** Scheme support bulk and trash objects. Logging logic verified in code for session state compliance.

### [2026-04-10 14:05] PWA Frontend Scaffolding (Phase 4)
**Purpose:** Initialized the React/Next.js/Tailwind frontend project for the PWA interface. Manually scaffolded to bypass MacOS home directory permission restrictions.
**Modified Files:**
- `frontend/package.json` (NEW)
- `frontend/app/layout.tsx` (NEW)
- `frontend/app/page.tsx` (NEW)
- `frontend/public/manifest.json` (NEW)

**Test Results:** Dependencies installed successfully via local npm cache. Bootstrap icons and Tailwind directives configured.