Updated README

README.md

@@ -320,9 +320,12 @@ tell you "PDF", just "this looks like something I was trained on, or not".
 - **Artifact:** trained weights live in `model/classifier.jld2` (committed), so
   the server just loads them at startup. Missing/unreadable ⇒ the server fails
   fast rather than run without classification.
-- **Effect today:** *annotate-only*. The class is logged
-  (`classification=known|unknown`) but every file still moves to `done/`; the
-  classifier can't misroute real files while it's unproven.
+- **Effect today:** *active routing*. The class is logged
+  (`classification=known|unknown`) and drives the pipeline split: `:known` files
+  go to `known/` for metadata enrichment (stage 2), `:unknown` files go to
+  `unknown/` for content triage (stage 3). The class chooses the downstream
+  stage; what's still unproven is the model's *accuracy*, not whether the routing
+  path runs.
 
 The architecture and byte→feature mapping are defined once in `src/model.jl` and
 shared by the trainer and the server, so they can't drift apart.