Why: Concurrent password changes, recovery key reissue, and session admission could accept retired credentials or omit rejected audits.
Evidence: Local Go vet and full tests passed; real PostgreSQL store suite, deterministic interleavings, and two-process contention passed with SELF receipts.
Impact: Account writes and session admission serialize per owner; stale sessions fail closed; checked rejections carry an audit row.
Refs: Agent-System-Dev #486; Agent-System-Backend #185; merge queue Issue #518
Why: API-key issuance shares the account maintenance no-create and credential-output contract; the old CLI printed its key and lacked --out-file.
Evidence: The new subprocess test failed before the flag existed, then passed for private output and pre-mutation collision refusal; current go vet and all Go tests pass.
Impact: apikey create accepts protected --dsn-file and --out-file, preserves stdout default, and never overwrites an existing destination.
Refs: Backend PR #185; Dev PR #486; U7 KTD14
Why: The safe open requirement covers user, apikey and identity verify, including default CLI paths.
Evidence: All three paths use private missing directories; previous full Go and PostgreSQL receipts cover the implementation, with a focused recheck before push.
Impact: Test coverage only; no runtime behavior or migration changes.
Refs: Backend PR #185; Dev PR #486
Why: Deliver U7 account transactions and audit without losing main auth_version, restricted-session, project or migration behavior.
Evidence: SELF go vet and all Go tests passed; isolated PostgreSQL store tests, 20 repeated two-process admission rounds, and real SIGTERM/SIGKILL persistence passed. Original failures remain in receipts; exact-head CI and independent Review follow.
Impact: Adds schema v31, noncreating account CLI opens, preflight credential output, same-transaction audit, and bootstrap admission guards. No live database touched.
Refs: Backend PR #185; Dev PR #486; original U7 r2 account specification; 2026-10-14 Root takeover
Why: identity open and the unknown-subcommand check landed on main, and this branch still has to refuse account migration while advertising capabilities.
Evidence: go test ./internal/store ./internal/app ./cmd/agent-system ./pkg/identity passed after the merge.
Impact: identity verify uses the no-migrate opener and returns the schema version. Account open still does not migrate. v28 is registered as readable by older artifacts.
Refs: cmd/agent-system/main.go, internal/app/app.go, internal/store/store.go, internal/store/migrate_compat.go
Co-authored-by: Cursor <cursoragent@cursor.com>
Why: a commit that only checks the password in the same process does not show the hash was durable.
Evidence: SELF go test TestPasswordSurvivesReopen.
Impact: test only.
Refs: docs/svc-deploy/u7-account-tx-audit.md
Co-authored-by: Cursor <cursoragent@cursor.com>
Why: creating an account and its activation key, and changing a password, were separate commits, so a crash could leave a user without a key or a new password with a still-valid login key.
Evidence: SELF go test ./internal/store including TestConcurrentCreateOneWinner, TestPasswordChangeIsAtomic, TestOpenExistingDoesNotMigrateOrCreate, and TestBootstrapRefusesExistingBusiness. PostgreSQL cases are NOT_RUN locally.
Impact: strict insert returns ErrConflict instead of overwriting. Account CLI opens an existing database without migrating. --dsn and --password still work and warn. capabilities --json does not touch the database.
Refs: docs/svc-deploy/u7-account-tx-audit.md
Co-authored-by: Cursor <cursoragent@cursor.com>
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