v0.12.4 — Email delivery that survives a provider outage

Fixed

• Transactional email — team invites, project access requests, and demo-request notifications — now goes through a chain of email providers. If one provider fails or is unavailable, the next one takes over automatically. This removes the single point of failure that delayed some emails on August 5.
• The Terms of Service link now opens the document directly instead of its containing folder.

Internal

• End-to-end cost tests compute gap-fill counts from their own time window, fixing a flaky check.

What's Changed

• chore(release): VERSION → 0.12.4 [skip ci] by @github-actions[bot] in #6122
• fix(billing): decouple enterprise entitlements from per-seat billing tier by @markokraemer in #6120
• fix(web): redirect /legal/terms to the specific Drive file, not the folder by @markokraemer in #6123
• fix(web): de-noise editor document-state race + third-party React #185 by @agent-kortix in #6129
• fix(billing): remove false seat-credit-grant copy from seat management card by @markokraemer in #6132
• kortix audit — read the account audit trail from the CLI by @Ino-Bagaric in #6135
• feat(email): provider-chain transport — SES primary, Resend + Mailtrap fallback by @markokraemer in #6139
• fix(web): new session scope defaults to null secrets, not explicit zero by @agent-kortix in #6133
• fix(sessions): push scope mutation to active sandbox + respawn opencode by @agent-kortix in #6137
• chore(deps): bump hadolint/hadolint-action from 3.3.0 to 3.4.0 by @dependabot[bot] in #6075
• chore(deps): bump github/codeql-action from 3 to 4.37.4 by @dependabot[bot] in #6076
• chore(deps): bump github/codeql-action/upload-sarif from 4.37.1 to 4.37.4 by @dependabot[bot] in #6077
• feat(llm-catalog): add Kimi K3 as a managed Kortix model via AsterLab by @agent-kortix in #6050
• test(ke2e): cover invite accept/decline state machine + userWithEmail fixture by @agent-kortix in #5203
• test(ke2e): cover account member role-transition matrix (MEM-6) by @agent-kortix in #5549
• fix(llm-gateway): surface real upstream errors instead of generic Bad Gateway by @agent-kortix in #5986
• docs(secrets): use the Kortix Armor organization by @agent-kortix in #5974
• fix(projects): bound large repository branch listing by @markokraemer in #6144
• fix(sdk,web): release session transcripts, scope stream tracking per session, split the icon barrel by @sutharjay1 in #6146
• feat(meta): land the platform coordinator behind the meta_agent experimental flag by @markokraemer in #6143
• fix(worktree): drop the picocolors import from lib (Worktree CI is install-free) by @markokraemer in #6147

Full Changelog: v0.12.3...v0.12.4