feat(web-next): resolve the session user + live compliance context

The tRPC createContext was () => ({}) — the mounted dsr/consent routers
401'd every call and the dsr singleton stub threw (audit finding A11).
createTrpcContext now accepts an app resolveUser hook; web-next resolves
the session cookie through the auth feature's validateSession (denylist
included) plus a role snapshot, and threads bindProductionDsr/Consent
(or dev-seed) bindings into every request. The dsr router resolves its
binding from ctx.dsrBinding per request instead of a throwing proxy.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

apps/web-next/package.json

@@ -17,7 +17,10 @@
     "@repo/auth": "workspace:*",
     "@repo/blog": "workspace:*",
     "@repo/core-api": "workspace:*",
+    "@repo/core-audit": "workspace:*",
     "@repo/core-cms": "workspace:*",
+    "@repo/core-consent": "workspace:*",
+    "@repo/core-dsr": "workspace:*",
     "@repo/core-shared": "workspace:*",
     "@repo/core-trpc": "workspace:^",
     "@repo/marketing-pages": "workspace:*",