docs: update README and docs with strict Quick Start (docker-compose-prod), fix WebSocket paths, enforce strict tone

Dockerfile

@@ -3,8 +3,20 @@ FROM python:3.11-slim
 ENV PYTHONUNBUFFERED=1 PIP_NO_CACHE_DIR=1
 WORKDIR /app
 
+# Устанавливаем системные зависимости для сборки некоторых Python пакетов
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+      build-essential \
+      gcc \
+      libffi-dev \
+      libssl-dev \
+      cargo \
+      rustc && \
+    rm -rf /var/lib/apt/lists/*
+
 COPY requirements.txt /app/requirements.txt
-RUN pip install --no-cache-dir -r requirements.txt
+RUN python -m pip install --upgrade pip setuptools wheel && \
+    pip install --no-cache-dir -r requirements.txt
 
 COPY ./app /app