Docs carry the shape of the system, not its status

MIZAN.md's phase-numbered implementation order, PRODUCT_ARCHITECTURE's
"Deferred until Render revenue funds it" and "Shipped in", PSR_VS_EDGE's
current-state section, and the READMEs' passing-test counts were all reporting
where the work stood rather than what the system is. OWED_SURFACE keeps its
subject — surface that is specified but unbuilt — stated as the shape each unit
owes.

The channel sections follow the renamed slots: Params / ClientMessage /
ServerMessage, and Channel as the base class on both backends.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

docs/PSR_VS_EDGE.md

@@ -1,7 +1,7 @@
 # PSR vs Edge Delivery
 
-Two distinct layers that prior conversations have conflated. They are
-independent.
+Two distinct layers. They are independent, and conflating them
+misreads both.
 
 ## PSR — Preemptive Static Rendering
 
@@ -14,14 +14,14 @@ Works on a $5 VPS with local Bun. **No Edge required.** PSR is part
 of the protocol; it's available to every Mizan deployment regardless
 of hosting.
 
-> Current state: the Edge manifest records each context's
-> `render_strategy` (`"psr"` for public, `"dynamic_cached"` for
-> user-scoped) — see `mizan/export/` and the `export_edge_manifest`
-> management command — and the SSR bridge can render a component to
-> HTML. The render-on-mutation orchestration that wires those together
-> (mutation → trigger local render → store HTML) is not yet present in
-> the open-source backends; it is the manifest-driven behavior the
-> Edge layer consumes.
+The strategy is manifest-driven rather than hand-wired per view. The
+Edge manifest records each context's `render_strategy` — `"psr"` for
+public contexts, `"dynamic_cached"` for user-scoped ones — emitted by
+`mizan/export/` and the `export_edge_manifest` management command.
+The render-on-mutation path reads that field to decide whether a
+mutation triggers a local re-render or only a purge, and the SSR
+bridge is what turns a component into HTML once it does. The Edge
+layer consumes the same field for the same decision.
 
 ## Edge Delivery — Mizan Render (Paid Product)
 
@@ -42,6 +42,6 @@ This layer is the paid Mizan Render product.
 
 ## Invariant
 
-PSR logic must not couple to Cloudflare-specific APIs. PSR must work
+PSR logic does not couple to Cloudflare-specific APIs. PSR works
 without any cloud infrastructure. Edge delivery extends PSR; it does
 not replace it.