Remove opencode and bash from demo, keep htop + parrot. Slim down image.

Generated with [Indent](https://indent.com)
Co-Authored-By: Indent <noreply@indent.com>

Author: jsegaran

js/demo/src/demo.ts

@@ -171,25 +171,16 @@ export async function handleDemoRequest(
       const image = modal.images
         .fromRegistry("ubuntu:24.04")
         .dockerfileCommands([
-          "RUN apt-get update && apt-get install -y bash curl git htop mpv ca-certificates && rm -rf /var/lib/apt/lists/*",
+          "RUN apt-get update && apt-get install -y curl htop mpv ca-certificates && rm -rf /var/lib/apt/lists/*",
           `RUN curl -fsSL ${BLIT_DEB_URL} -o /tmp/blit.deb && dpkg -i /tmp/blit.deb && rm /tmp/blit.deb`,
-          "RUN curl -fsSL https://opencode.ai/install | bash && ln -sf /root/.opencode/bin/opencode /usr/local/bin/opencode",
-          // Pre-run opencode to trigger one-time database migration during image build
-          "RUN opencode providers list > /dev/null 2>&1 || true",
           "RUN mkdir -p /home/blit",
         ]);
 
       const startupScript = [
         "set -e",
         `curl -sfL -o /home/blit/parrot.gif '${PARROT_GIF_URL}'`,
-        'git config --global user.email "demo@example.com"',
-        'git config --global user.name "Demo"',
-        "git init /home/blit/project",
-        'cd /home/blit/project && echo "# Project" > README.md && git add -A && git commit -m init',
         'blit share --passphrase "$BLIT_NONCE" &',
         "sleep 2",
-        "blit start -t bash -- bash",
-        "blit start -t opencode -- opencode --model opencode/gpt-5-nano /home/blit/project",
         "blit start -t htop -- htop",
         "blit start -t parrot -- mpv --vo=tct --no-osd-bar --osd-level=0 --no-terminal --loop=inf /home/blit/parrot.gif",
         "wait",