feat: add Goldfish Recap YouTube summary PWA

YouTube subtitles via OpenRouter become persistent, shareable recaps
with timestamp jump links, PIN-protected creation, and Traefik deploy.

Co-authored-by: Cursor <cursoragent@cursor.com>

Dockerfile

@@ -0,0 +1,17 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+COPY pyproject.toml /app/pyproject.toml
+COPY server /app/server
+COPY tools /app/tools
+RUN pip install --no-cache-dir -U pip && pip install --no-cache-dir .
+
+COPY public /app/public
+
+EXPOSE 8000
+
+CMD ["uvicorn", "server.app:app", "--host", "0.0.0.0", "--port", "8000"]