feat: initial project setup — Vision Studio bot

- Python 3.12 + discord.py
- Docker + docker-compose
- Forgejo Actions CI (lint + test)
- Cog system with /hello example
- deploy.sh for auto-deployment

Dockerfile

@@ -0,0 +1,23 @@
+FROM python:3.12-slim AS base
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
+    CMD python -c "import discord; print('ok')" || exit 1
+
+CMD ["python", "vision.py"]