v4.6.0-rc.0

What's Changed

• feat: implement unified solution envelope (v2 format) by @debian777 in #489
• chore(deps): bump the npm-dependencies group with 10 updates by @dependabot[bot] in #493
• feat(helm): lock down Keycloak admin paths by @debian777 in #494
• fix(helm): hook jobs + idempotent credentials secret (#495) by @debian777 in #496
• fix: health check readiness log noise and test cleanup by @debian777 in #499
• chore(deps): bump the npm-dependencies group with 2 updates by @dependabot[bot] in #497
• feat(auth): add WWW-Authenticate authorization_uri, CORS preflight, and DCR proxy by @debian777 in #501
• fix(mcp): return JSON-RPC error envelope on unauthenticated /mcp requests by @debian777 in #502
• Add .qoder repowiki documentation by @debian777 in #504
• chore: use symlink for .qoder/repowiki/en/content → wiki/ by @debian777 in #505
• release: 4.6.0-rc.0 by @debian777 in #506

Full Changelog: v4.5.2...v4.6.0-rc.0