feat: MCP server packaging and CI/CD setup

[mpicciolli]

Summary

• Add manifest.json with full MCP server metadata (name, description, icon)
• Add GitHub Actions workflow for automated package publishing to npm registry
• Add build step in CI workflow to bundle the MCP server with mcpb pack
• Update package.json with pack script and required packaging dependencies
• Update README.md with clearer documentation

[Copilot]

Pull request overview

This PR introduces MCP bundle packaging for the PCM MCP server and wires CI/CD to build (and on tags, publish) the packaged artifacts, alongside updated end-user installation docs.

Changes:

• Add MCP bundle metadata via manifest.json and document multiple client installation options in README.md.
• Add a pack script (using mcpb pack) and include the MCPB tooling dependency.
• Update CI to build the .mcpb bundle and add a tag-triggered publish workflow.

Reviewed changes

Copilot reviewed 5 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
README.md	Expands installation instructions (bundle + various clients) and documents npm run pack.
package.json	Adds pack script and MCPB tooling dependency.
package-lock.json	Locks new dependency graph for MCPB tooling and related packages.
manifest.json	Introduces MCP bundle manifest (metadata + server entrypoint + icon).
.github/workflows/publish.yml	Adds tag-triggered publishing/release workflow.
.github/workflows/ci.yml	Adds bundle build step to CI.

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[Copilot]

Pull request overview

Copilot reviewed 6 out of 8 changed files in this pull request and generated 2 comments.

Comments suppressed due to low confidence (1)

package.json:55

• @anthropic-ai/mcpb is only used by the pack script (CLI) and isn’t imported by the runtime server. Keeping it under dependencies increases install size for end-users; it should be a devDependency (and regenerate package-lock.json).

	"dependencies": {
		"@anthropic-ai/mcpb": "^2.1.2",
		"@modelcontextprotocol/sdk": "^1.29.0",
		"cdb-converter": "^0.1.2",
		"sql.js": "^1.14.1",
		"zod": "^3.25.76"