premiere-pro-mcp v1.3.0

Windows releases now ship a verified signed CEP bridge and install it automatically, resolving the package-side signature failure reported in #36. Adds --diagnose-cep, upgrades TypeScript 7/Vitest 4/Zod 4/MCP SDK 1.29, moves support to Node 20.19+, upgrades the landing app to Next.js 16.2.12, and clears production npm audit findings. Includes and credits the toolchain/schema/documentation work from @patbaumgartner in #24. Validation: 347 tests; Windows/macOS Node 20, 22, and 24 CI; signed ZXP verification; npm publish workflow; registry tarball inspection.