consolidation of some of the modules, localization fixes, product advisories work, qa work

docs-archived/modules/excititor/operations/chunk-api-user-guide.md

@@ -0,0 +1,24 @@
+# Using the Chunk API
+
+Endpoint: `POST /vex/evidence/chunks`
+- Content-Type: `application/x-ndjson`
+- See schema: `docs/modules/excititor/schemas/vex-chunk-api.yaml`
+
+Response: `202 Accepted`
+```json
+{ "chunk_digest": "sha256:…", "queue_id": "uuid" }
+```
+
+Operational notes
+- Deterministic hashing: server recomputes `chunk_digest` from canonical JSON; mismatches return 400.
+- Limits: default 500 items, max 2000 (aligned with Program.cs guard).
+- Telemetry: metrics under `StellaOps.Excititor.Chunks` (see chunk-telemetry.md).
+- Headers: correlation/trace headers echoed (`X-Stella-TraceId`, `X-Stella-CorrelationId`).
+
+Example curl
+```bash
+curl -X POST https://excitor.local/vex/evidence/chunks \
+  -H "Authorization: Bearer <token>" \
+  -H "Content-Type: application/x-ndjson" \
+  --data-binary @docs/modules/excititor/samples/chunk-sample.ndjson
+```