🧠 Add Agent Memory System with PostgreSQL + Qdrant + Cohere

Features:
- Three-tier memory architecture (short/mid/long-term)
- PostgreSQL schema for conversations, events, memories
- Qdrant vector database for semantic search
- Cohere embeddings (embed-multilingual-v3.0, 1024 dims)
- FastAPI Memory Service with full CRUD
- External Secrets integration with Vault
- Kubernetes deployment manifests

Components:
- infrastructure/database/agent-memory-schema.sql
- infrastructure/kubernetes/apps/qdrant/
- infrastructure/kubernetes/apps/memory-service/
- services/memory-service/ (FastAPI app)

Also includes:
- External Secrets Operator
- Traefik Ingress Controller
- Cert-Manager with Let's Encrypt
- ArgoCD for GitOps

services/memory-service/Dockerfile

@@ -1,24 +1,23 @@
+# DAARION Memory Service
 FROM python:3.11-slim
 
 WORKDIR /app
 
-# Встановлюємо системні залежності
-RUN apt-get update && apt-get install -y \
-    gcc \
-    postgresql-client \
-    curl \
-    && rm -rf /var/lib/apt/lists/*
-
-# Копіюємо requirements та встановлюємо залежності
+# Install dependencies
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Копіюємо код
-COPY . .
+# Copy application
+COPY app/ ./app/
 
-# Відкриваємо порт
+# Environment
+ENV PYTHONPATH=/app
+ENV PYTHONUNBUFFERED=1
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:8000/health || exit 1
+
+# Run
 EXPOSE 8000
-
-# Запускаємо додаток
 CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
-