fix Dockerfile and install script

[xtremebeing]

change pip to pip3 in Dockerfile and
added npm install in install.sh

[Copilot]

Pull request overview

This PR updates the Dockerfile to use pip3 instead of pip for Python package installations and adds an npm install instruction to the install script to ensure dependencies are installed before deployment.

• Changed pip to pip3 in Dockerfile for Python 3 compatibility
• Added npm install step in the deployment instructions

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
flare-worker/Dockerfile	Updated to use pip3 instead of pip for installing Python packages
install.sh	Added npm install instruction before npx wrangler deploy step

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Missing closing double quote on this echo statement. The line should end with a closing quote to properly terminate the string.

Suggested change

	echo " 3. npm install
	echo " 3. npm install"

[Copilot]

The RUN pip3 install --no-cache-dir boto3 requests pyiceberg pyarrow line installs multiple third-party packages from PyPI without any version pinning or integrity verification, which creates a persistent supply-chain risk: each rebuild may pull a new, potentially compromised version of these packages. An attacker who compromises one of these packages or the package distribution channel could achieve arbitrary code execution inside this container at build time or runtime. To reduce this risk, pin each dependency to specific versions (or a locked requirements file) and, where feasible, use mechanisms like hashes or a private mirror to ensure deterministic, integrity-checked installs.