ci: build and publish MCPB bundle for pdf-server

[ochafik]

Summary

• Add *.mcpb to .gitignore (built artifacts, like dist/)
• Validate MCPB packaging in CI (npx -y @anthropic-ai/mcpb pack, Linux x64 only) to catch broken manifests early
• Build and upload .mcpb bundle as a GitHub release asset on publish (npm-publish.yml)

Changes

.gitignore

• Added *.mcpb pattern to ignore locally-built bundles

.github/workflows/ci.yml

• Added MCPB pack validation step after existing build/test steps (Linux x64 only to avoid redundant runs)

.github/workflows/npm-publish.yml

• Added publish-mcpb job that runs after publish-examples, builds the pdf-server, packs the .mcpb bundle, and uploads it as a GitHub release asset via gh release upload --clobber

Test Plan

• CI should run the MCPB pack step on Linux x64 and succeed
• On release, the .mcpb file should appear as a downloadable asset on the GitHub release page

[pkg-pr-new]

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@modelcontextprotocol/ext-apps

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/ext-apps@495

@modelcontextprotocol/server-basic-preact

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-basic-preact@495

@modelcontextprotocol/server-basic-react

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-basic-react@495

@modelcontextprotocol/server-basic-solid

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-basic-solid@495

@modelcontextprotocol/server-basic-svelte

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-basic-svelte@495

@modelcontextprotocol/server-basic-vanillajs

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-basic-vanillajs@495

@modelcontextprotocol/server-basic-vue

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-basic-vue@495

@modelcontextprotocol/server-budget-allocator

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-budget-allocator@495

@modelcontextprotocol/server-cohort-heatmap

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-cohort-heatmap@495

@modelcontextprotocol/server-customer-segmentation

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-customer-segmentation@495

@modelcontextprotocol/server-debug

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-debug@495

@modelcontextprotocol/server-map

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-map@495

@modelcontextprotocol/server-pdf

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-pdf@495

@modelcontextprotocol/server-scenario-modeler

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-scenario-modeler@495

@modelcontextprotocol/server-shadertoy

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-shadertoy@495

@modelcontextprotocol/server-sheet-music

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-sheet-music@495

@modelcontextprotocol/server-system-monitor

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-system-monitor@495

@modelcontextprotocol/server-threejs

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-threejs@495

@modelcontextprotocol/server-transcript

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-transcript@495

@modelcontextprotocol/server-video-resource

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-video-resource@495

@modelcontextprotocol/server-wiki-explorer

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-wiki-explorer@495

commit: 5958400