docs: refactor documentation for portability and SSOT v1.2.7

GEMINI.md

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+# GEMINI AGENT CONTEXT (Memory & Rules)
+
+This file is the specific entry point for **Gemini** (Antigravity). It summarizes critical project knowledge and operational rules to ensure continuity and high-fidelity output.
+
+## 🚀 Quick Access
+- **Primary Rules:** [AI_RULES.md](AI_RULES.md)
+- **Technical Stack:** Section 2 in [requirements.md](requirements.md)
+- **Active Plan:** [PLAN.md](PLAN.md)
+- **Session State:** [dev_docs/SESSION_STATE.md](dev_docs/SESSION_STATE.md)
+- **UI Specs:** [dev_docs/UI_FIDELITY_SPEC.md](dev_docs/UI_FIDELITY_SPEC.md)
+
+## 🏗 Operations & Tooling
+- **Git Binary:** Path is in `.git_path` (Relative to project root).
+- **Versioning:** Always update `VERSION.json` on every commit.
+- **Logbook:** Update `dev_docs/ARCHIVE_LOGS.md` after every feature/fix.
+- **Dev Servers:** Frontend (Port 3000), Backend (Port 8000 via `./start_server.sh`).
+
+## 🧠 Project Specific Knowledge
+- **Iconography System:** 
+  - **Categories:** Always use `Layers` (Primary color: `text-primary`).
+  - **Item Types:** Always use `Package` (Color: `text-green-500`).
+  - **Indicators:** Use `ChevronDown` for selects/interactive dropdowns.
+- **Offline Protocol:** Users can log in while offline if they have authenticated via LDAP at least once before (hash is cached locally).
+- **Naming Policy:** Application text MUST be English. User conversation is Romanian.
+
+## 📜 Personal Directives
+1. **Fidelity First:** Never simplify UI unless explicitly asked. Density and aesthetics must remain "Premium".
+2. **Case Sensitivity:** Backend searches (SQLite) are often case-sensitive; front-end should normalize to UPPERCASE for barcodes/PNs.
+3. **Commit Messages:** Use conventional commits (`feat:`, `fix:`, `style:`, etc.).