Release v2026.43 · Altinn/altinn-studio

What's Changed

chore(agents): cover every toolchain the repository needs by @martinothamar in #21492
chore(deps): bump dompurify from 3.4.16 to 3.4.17 by @dependabot[bot] in #21494
fix: Change status from Proposed to Accepted in Assistant app upgrade ADR by @ErlingHauan in #21496
chore(deps): update dependency @oddbird/popover-polyfill to v0.7.3 by @renovate[bot] in #21473
feat(observability): drop the OTLP exporter's own calls from client metrics by @martinothamar in #21514
chore: restore frontend subtree ancestry after #21519 by @olemartinorg in #21551
feat(app-frontend): use the lowercase l with a tail in Inter by @phlipsterit in #21523
fix(load-balancer): keep nginx off excluded nodes and drop the Gitea runner HTTPS policy by @martinothamar in #21671
docs: explicitly state altinn-studio as repo main is restricted for by @Jondyr in #21678
build(deps): bump follow-redirects from 1.16.0 to 1.16.2 by @dependabot[bot] in #21694
docs: ADR and guide for observability and instrumentation standards by @martinothamar in #21679
fix(observability): run two of each collector in every cluster by @martinothamar in #21741
ci: skip Cypress and K6 for changes only to the app backend's tests by @ivarne in #21745
docs: list altinn-dashboards-grafana and what Studio owns in it by @martinothamar in #21761
feat(observability): let the platform's collector send to otel-router in runtime clusters by @martinothamar in #21781

Full Changelog: v2026.42...v2026.43