fix(mcpb): Update manifest to v0.3 spec and switch to npx-based bundle#1488

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bryankthompson wants to merge 2 commits intoupstash:masterfrom

bryankthompson:fix/mcpb-manifest-improvements

Commits on Jan 18, 2026

fix(mcpb): Update manifest to v0.3 spec and switch to npx-based bundle
bryankthompson
committed

Commits on Jan 19, 2026

fix(mcpb): Use human-readable tool names per maintainer feedback
bryankthompson
committed