Add ifcAwadaDataType property set for various IFC elements to enhance data representation.

Merge upstream/master into feature/ziggurat-plugins-oauth

chore: unify addon metadata (Flexel CMS, flexel-cms.ru), bump versions

feat(comments): quote fragments and bump to 1.2.0

chore: bump news/gallery/faq/pages for unique views

chore: bump comments/gallery/news for likes

feat(sso-callback): enhance SSO callback handling and error messaging

Add IFC building element proxy and proxy type attributes and property sets for enhanced data representation.

chore(codegraph): ignore local index data (keep .gitignore)

BIMLAB-512: allowlist OAuth admin redirect and outbound URLs

Merge branch 'master' into feature/ziggurat-plugins-oauth

feat: implement OAuth handoff cookies for secure token exchange

feat: implement OAuth handoff cookies for secure token exchange

BIMLAB-502: fix(oauth): P2002 гонка create user (1.3.20)

BIMLAB-502: feat(news): likes и комментарии news/spine по умолчанию

BIMLAB-469: роль expert из grant spine, автосоздание пользователя CMS

feat(oauth): POST ziggurat-session for spine BFF handoff (1.3.19)

feat(oauth): map Ziggurat firstName/lastName (1.3.18)

fix(oauth): handoff cookie + Ziggurat /auth/me profile

chore(oauth): update Ziggurat provider color and increment version to 1.3.15

fix(oauth): use provided ziqqurat-icon.svg for Ziggurat provider

feat(oauth): PKCE for custom + official Ziggurat mark

chore: drop flexel-plugin-stats from Ziggurat plugins branch

feat(oauth): Ziggurat preset with PKCE public client

fix(oauth): admin subpath redirects and ARR-safe Yandex jump

fix: convert plugin admin overlay files from UTF-16LE to UTF-8

chore: ignore git bundle artifacts

feat: add Ziggurat auth and plugin stats for tier B SSO