feat: session/projection push frame; tail block reads the watermark snapshot

2026-07-27 21:34:14 +08:00
parent 708d3132cf
commit 6f47df0913
7 changed files with 138 additions and 75 deletions
--- a/packages/host/apiproxy/src/api/sessions.schema.ts
+++ b/packages/host/apiproxy/src/api/sessions.schema.ts
@@ -105,7 +105,8 @@ export const todoItemSchema = z.object({
 * deep-validating here would import every domain's schema into the carrier.
 */
 export const sessionProjectionsBlockSchema = z.object({
-  asOfSeq: z.number().int().nonnegative(),
+  // -1 = empty log (the lastSeq convention of session/subscribed).
+  asOfSeq: z.number().int().min(-1),
  values: z.record(z.string(), z.unknown()),
 }) as unknown as z.ZodType<SessionProjectionsBlock>