Add Docker build workflow

[seonglae]

Summary

• add GitHub action to verify Docker build

Testing

• npm run lint -- --fix=false (fails: Delete whitespace)
• npm run build

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https://chatgpt.com/codex/tasks/task_e_6843172e9d6c8327919ab2c509a81d3f

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[cursor-com]

Bug: Build Fails Due to Missing Dev Dependencies

The Dockerfile installs only production dependencies using pnpm install --frozen-lockfile --prod, but subsequently attempts to build the project with pnpm build. This fails because the build step, typical for TypeScript projects, requires development dependencies (e.g., TypeScript compiler, build tools) that are excluded by the production-only install.

Dockerfile#L6-L10

mcp-notion/Dockerfile

Lines 6 to 10 in 25279e6

	COPY package.json pnpm-lock.yaml ./
	RUN pnpm install --frozen-lockfile --prod
	# Copy source
	COPY . .
	RUN pnpm build

Fix in Cursor

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[Copilot]

Pull Request Overview

This PR adds support for building the application with Docker by including new documentation, a Dockerfile, and a GitHub Action workflow for automated Docker builds.

• Added Docker instructions in README.md.
• Added a Dockerfile to containerize the app.
• Created a GitHub Action workflow to build the Docker image on push and pull requests.
• Introduced an MIT LICENSE file.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
README.md	Added Docker build and run instructions to help users containerize the app.
LICENSE	Introduced the MIT license for the project.
Dockerfile	Provided a containerization configuration to build the production image.
.github/workflows/docker-build.yml	Set up a GitHub Action to verify that the Docker image builds correctly.

[Copilot]

For consistency with the README instructions, consider adding '-t mcp-notion' to the docker build command, e.g., 'docker build -t mcp-notion .'.

Suggested change

	run: docker build .
	run: docker build -t mcp-notion .