Implement hCaptcha solving via 2Captcha & other stuff

- implement hCaptcha solving via paid service 2Captcha and browser automation library Playwright with rebrowser-patches

- implement sunoApi instances caching so sessions won't be constantly updated

- add support for entering cookies not only in SUNO_COOKIE, but also the Cookie HTTP header

- update docs and add Russian docs

Dockerfile

@@ -12,10 +12,14 @@ WORKDIR /app
 COPY package*.json ./
 
 ARG SUNO_COOKIE
-RUN if [ -z "$SUNO_COOKIE" ]; then echo "SUNO_COOKIE is not set" && exit 1; fi
+ARG BROWSER
+RUN if [ -z "$SUNO_COOKIE" ]; then echo "Warning: SUNO_COOKIE is not set"; fi
 ENV SUNO_COOKIE=${SUNO_COOKIE}
+RUN if [ -z "$BROWSER" ]; then echo "Warning: BROWSER is not set; will use chromium by default"; fi
+ENV BROWSER=${BROWSER:-chromium}
 
 RUN npm install --only=production
+RUN npx playwright install $BROWSER
 COPY --from=builder /src/.next ./.next
 EXPOSE 3000
 CMD ["npm", "run", "start"]