Wires the KV store into Rhai scripts via the handle pattern:
let widgets = kv::collection("widgets");
widgets.set("k", #{ n: 1 });
let v = widgets.get("k"); // value or () if absent
widgets.has("k") / widgets.delete("k")
let page = widgets.list(); // cursor-style pagination
`KvHandle` is a custom Rhai type holding `Arc<dyn KvService>` + the
per-call `Arc<SdkCallCx>`. Methods route async service calls through
`tokio::Handle::current().block_on(...)` — works because
`LocalExecutorClient` runs the script under `spawn_blocking` so a
runtime is reachable. The bridge surfaces `app_id` exclusively
through `cx.app_id`; no public-facing argument can spoof an app.
`TriggerEvent` lands in `picloud-shared` as the wire shape the
dispatcher will emit (KV + DeadLetter variants — KV exercised now,
DL hooks up with the dispatcher in commit 5/8). `SdkCallCx` and
`ExecRequest` grow `is_dead_letter_handler: bool` and
`event: Option<TriggerEvent>`. `engine.rs::build_ctx_map` flattens
the event into `ctx.event` for triggered handlers; direct ingress
leaves the key absent so scripts can `if "event" in ctx`.
Tests:
- 7 `sdk_kv.rs` integration tests covering the full Rhai surface
(round-trip, missing-key unit, has bool, delete was-present,
empty-collection rejection, cursor pagination, cross-app
isolation through the bridge).
- 3 new `engine.rs` tests pinning `ctx.event` shape per
design notes §4 (KV insert with value, delete with unit value,
direct invocations have no `event` key).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Foundation for the v1.1.x stateful SDK services. Lands the shape only:
- SdkCallCx — per-call context plumbed into every future service
trait method (app_id, principal, execution/request ids, trigger
depth slots).
- Services — empty non_exhaustive bundle; v1.1.1 (KV) adds the first
field, subsequent PRs follow.
- ServiceEventEmitter — async trait future services emit through;
real outbox-backed impl lands with triggers in v1.1.1. NoopEventEmitter
is the v1.1.0 default.
No behaviour change. Subsequent commits in this PR plumb these types
through executor-core and the orchestrator dispatch path.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
