chore: update dependencies and add Playwright installation script

- Added script to install Playwright with dependencies
- Updated @fluentui/react from 8.125.5 to 8.125.6
- Updated @hpcc-js/api from 3.4.16 to 3.4.19
- Updated @hpcc-js/common from 3.7.6 to 3.7.9
- Updated @hpcc-js/comms from 3.15.6 to 3.16.0
- Updated @hpcc-js/dgrid from 3.7.6 to 3.7.9
- Updated @hpcc-js/dgrid-shim from 3.4.5 to 3.4.6
- Updated @hpcc-js/esbuild-plugins from 1.8.7 to 1.8.10
- Updated @hpcc-js/observablehq-compiler from 3.7.9 to 3.7.12
- Updated @hpcc-js/util from 3.5.5 to 3.5.8
- Updated @hpcc-js/wasm-expat from 1.13.2 to 1.13.5
- Updated @hpcc-js/wasm-zstd from 1.12.2 to 1.12.5
- Updated @langchain/community from 1.1.27 to 1.1.28
- Updated @langchain/core from 1.1.40 to 1.1.47
- Updated @langchain/classic from 1.0.31 to 1.0.33
- Updated @langchain/ollama from 1.2.6 to 1.2.7
- Updated @types/node from 24.12.2 to 24.12.4
- Updated @vitest/coverage-v8 from 4.1.5 to 4.1.6
- Updated @vitest/ui from 4.1.5 to 4.1.6
- Updated @vscode/extension-telemetry from 1.5.1 to 1.5.2
- Updated eslint from 10.2.1 to 10.4.0
- Updated jsdom from 29.0.2 to 29.1.1
- Updated langchain from 1.3.3 to 1.4.1
- Updated typescript-eslint from 8.59.0 to 8.59.4
- Updated vitest from 4.1.5 to 4.1.6

Signed-off-by: Gordon Smith <GordonJSmith@gmail.com>

Author: GordonSmith