feat: add streaming support (aws-samples#130)

* fix: vscode settings update (use v1.85+)

* fix(projenrc): configUpgradeDeps at postSynth to conform with pdk upgrade

* fix(api): use custom python dep to conform with pdk upgrade

* fix(galileo-cdk): bump jsii version and add pnpm-logger dep to conform pdk upgrade

* chore(deps): upgrade pdk@0.23.31, cdk@2.137.0 and fix projen dep

* chore(deps): remove sdk/smithy version pinning, replace discont'd aws-sdk packages

* fix(website): build fails in CI

* chore(ws-api): add ws-api bootstrap

* fix(cli): non-built project bootstrap fails
fixes aws-samples#112

* fix: adjust tsconfig for api and website

* fix(infra): admin user attachment depends on already created group and user

* feat(ws-api): rename to ws-api, add model and wire up with infra

* chore(deps): bump pdk to 0.23.33 and align tsconfigs for api and web

* feat(infra): wire up wsApi with lambdaAuthorizer and bump node runtime (20_x) for lambda handlers

* fix(website): popover dismissbutton and header must be present together

* feat(galileo-sdk): add streaming support to chain

* feat: dependency management and project wiring

* feat(infra): add ws connections table

* feat(infra): split inference engine handler rest/ws with shared logic

* feat(infra): merge inference and presentation stacks to avoid circular deps

* feat(ws-api): connection data persistence

* feat(website): switch to streaming respose in chat

* fix(api): poetry lockfile causes CI build error

* fix(ws-api): don't generate code for send-chat-message