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Replace `RUN curl -LsSf https://astral.sh/uv/install.sh | sh` across all starter Dockerfiles with `COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /usr/local/bin/`. The curl|sh form has a pipe-swallow latent bug: when astral.sh returns a 5xx, curl fails but `sh` gets no stdin and exits 0, so the layer "succeeds" with no uv binary. A later `RUN uv sync` then crashes with `uv: not found` (exit 127). This already bit the agno starter today (run 24809910399) when astral.sh had a transient outage; upstream recovered on its own so this is latent-bug cleanup, not a hotfix. Using the official uv image is uv's own recommended pattern: it's cache-friendly, network-free at build time, and sidesteps the pipe failure mode entirely. Scope: all 20 Dockerfiles under examples/integrations/*/Dockerfile, examples/integrations/*/docker/Dockerfile.agent, and examples/showcases/scene-creator/agent/Dockerfile. Verified locally: `docker build -f docker/Dockerfile.agent ./agent` for agno succeeds against the new pattern.