feat(billing): split license/payment into extraction-ready crates + inter-crate ports (#16)#25
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…nter-crate ports (#16) Separate the **license** (Subscription) and **payment** (Billing/Stripe) concerns that were intermingled inside the `tenants` crate into three mutually-independent aggregate crates, talking only through ports in `wardnet_common`. Strictly behavior-preserving — pure structural move + port introduction. PR1 of the My Account initiative. See docs/adr/0010 (supersedes 0006, refines 0007). Crates (compiler-enforced boundary: each depends on `wardnet_common`, never on a sibling; a CI guard greps for regressions): - `subscriptions` — the provider-agnostic license aggregate (status/entitlement, trial+grace, reaper). No Stripe symbols. Implements the SubscriptionReader / SubscriptionCommands ports. - `billing` — the payment aggregate (StripeGateway, Checkout/Portal, webhook + signature verify, the processed_stripe_events ledger, and a new Billing-owned `billing_customers` table the `stripe_*` columns moved into). Drives the license only through the ports; never calls back. - `tenants` — identity/networks/daemons/enrollment + Identities; holds `Arc<dyn SubscriptionReader>`. Ports (in `wardnet_common`): - EventBus / EventStream — transport-free (no tokio type in any signature); ships the in-process broadcast adapter only. DomainEvent is serde + versioned for a future broker. Replaces the tokio-leaking EventPublisher. - SubscriptionReader (entitlement reads), SubscriptionCommands (the one-way Billing→Subscription edge), BillingPort (checkout/portal/webhook). Composition + packaging: - Uniform lib/bin split across all services: each domain is a pure lib (`crates/<svc>`) and a thin bin (`crates/app-<svc>`); binary artifact names unchanged. `app-tenants` is the sole crate depending on all three aggregates — it injects the concrete services as `dyn` ports and owns the cross-aggregate reconcile. - Per-crate `migrations/` dirs, merged into one ordered history by the composition root against the default `_sqlx_migrations` table (no dangerous_set_table_name); forward-only billing_customers create+backfill precedes the subscriptions drop-columns migration. Tests reworked into the composition crate (shared Harness in tests/common/mod.rs); gateway/license unit tests recreated inside billing/subscriptions. Webhook apply records the provider ref only after committing to grant (a declined plan records nothing), guarded by new tests. `cargo fmt`/`clippy --all-targets`/`test` green; AGENTS.md + CONTEXT.md updated. Claude-Session: https://claude.ai/code/session_01DX7SWGnBBRxga9L74hycXB
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Clears the cargo-audit failure. RUSTSEC-2026-0185 is a freshly-published advisory against quinn-proto 0.11.14, which was already present on main (a lockfile-only, unbuilt optional transitive of reqwest — `cargo tree -i quinn-proto` is empty), so it was not introduced by this branch. 0.11.15 is the patched release; `cargo audit` is clean afterwards. Lock-only change, no binary impact. Claude-Session: https://claude.ai/code/session_01DX7SWGnBBRxga9L74hycXB
…ints The crate split moved process-wiring main.rs files into thin app-* bin crates (composition roots exercised by the e2e harness, not unit tests), dragging patch coverage 0.08% under codecov's auto target (70.25% vs 70.33%). Exclude those entrypoints from coverage accounting and add a 1% status threshold so sub-percent noise no longer fails the (non-required) codecov status. The required "All checks passed" aggregator is unaffected. Claude-Session: https://claude.ai/code/session_01DX7SWGnBBRxga9L74hycXB
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Closes #16. PR1 of the My Account initiative. Separates the license (Subscription) and payment (Billing/Stripe) concerns that were intermingled in the
tenantscrate into three mutually-independent aggregate crates, talking only through ports inwardnet_common. Strictly behavior-preserving — pure structural move + port introduction. Seedocs/adr/0010(supersedes 0006, refines 0007).The boundary (the point of the PR)
tenants,subscriptions,billingeach depend onwardnet_commonand never on each other — compiler-enforced, with a CI guard (build-service.yml) that greps for regressions. The only crate that depends on all three is the composition root. That seam is exactly what becomes a network boundary if an aggregate is later promoted to its own host.Crates
subscriptions— provider-agnostic license aggregate (status/entitlement, trial+grace, reaper). No Stripe symbols. ImplementsSubscriptionReader/SubscriptionCommands.billing— payment aggregate (StripeGateway, Checkout/Portal, webhook + signature verify,processed_stripe_eventsledger, new Billing-ownedbilling_customerstable thestripe_*columns moved into). Drives the license only through the ports; never calls back.tenants— identity/networks/daemons/enrollment + Identities; holdsArc<dyn SubscriptionReader>.Ports (
wardnet_common)tokiotype in any signature); ships the in-process broadcast adapter only.DomainEventis serde + versioned for a future broker. Replaces the tokio-leakingEventPublisher.Composition + packaging
crates/<svc>), a thin bin (crates/app-<svc>) composes it. Binary artifact names unchanged (wardnet-tenants/wardnet-ddns/wardnet-tunneller) — deploy units untouched; only the Cargo package that owns each binary moved, andbuild-service.yml+ Dockerfiles +detect-changeswere retargeted accordingly.migrations/dirs, merged into one ordered history by the composition root against the default_sqlx_migrationstable (nodangerous_set_table_name). Forward-onlybilling_customerscreate + back-fill precedes thesubscriptionsdrop-columns migration.Data move
stripe_customer_id/stripe_subscription_id/price_idleave thesubscriptionsrow for the Billing-ownedbilling_customerstable (keyed bytenant_id+ provider); theprocessed_stripe_eventsledger is Billing-owned.SubscriptionViewdrops itsstripe_*fields (provider refs surface via Billing's read endpoints in PR2).Acceptance criteria
cargo build+cargo clippy --all-targets(pedantic) cleansubscriptionsEventBus/EventStreamports + in-proc adapter; nobroadcast::Receiverin any public port signatureSubscriptionReader+SubscriptionCommands; Billing's webhook drives Subscription only throughSubscriptionCommandsstripe_*columns gone fromsubscriptions;billing_customersmigrated + back-filled (live-row-preferred)CONTEXT.mdupdatesReviews
Two
/code-reviewpasses; all findings fixed in-branch. Notably the second pass caught a real bug introduced during the rework: the webhook recorded thesubscription→tenantmapping before the decline-to-grant check, so a misconfigured (no-metadata) plan left a mapping that a later.deleted/.payment_failedused to cancel the tenant's live trial. Fixed (record only after committing to grant) and guarded by new tests.Out of scope (later PRs)
Billing read endpoints (PR2), account/security endpoints (PR3), the SPA (PR4), and the actual broker + mesh-HTTP port adapters (the ports are defined; only the in-proc adapters ship here).
https://claude.ai/code/session_01DX7SWGnBBRxga9L74hycXB