reactor(opaque): normalize to OXICLOUD_AUTH_OPAQUE_* variables

tests/e2e/fixtures/oxicloud-stack.ts

@@ -85,8 +85,8 @@ export async function startStack(): Promise<Stack> {
       // OPAQUE substrate off for the container E2E — same rationale as the
       // playwright.config.ts / playwright.coverage.config.ts overrides.
       // The Hurl suite exercises OPAQUE via server.env directly.
-      OXICLOUD_OPAQUE_MODE: 'off',
-      OXICLOUD_OPAQUE_SERVER_SETUP: '',
+      OXICLOUD_AUTH_OPAQUE_MODE: 'off',
+      OXICLOUD_AUTH_OPAQUE_SERVER_SETUP: '',
     })
     // /health is a fast liveness probe (no DB hit); 200 means the HTTP server
     // is up and sqlx migrations have completed.

tests/e2e/playwright.config.ts

@@ -71,8 +71,8 @@ export default defineConfig({
       // need the boot-time init nor the ~200 KiB WASM client. Blanking
       // the inherited commonEnv values takes the DI factory's
       // `effective_mode == Off` short-circuit.
-      OXICLOUD_OPAQUE_MODE: 'off',
-      OXICLOUD_OPAQUE_SERVER_SETUP: '',
+      OXICLOUD_AUTH_OPAQUE_MODE: 'off',
+      OXICLOUD_AUTH_OPAQUE_SERVER_SETUP: '',
     },
   },
 });

tests/e2e/playwright.coverage.config.ts

@@ -71,8 +71,8 @@ export default defineConfig({
       // WASM bundle nor the boot-time substrate init. Blank the two OPAQUE
       // env vars inherited from commonEnv so the DI factory takes the
       // `effective_mode == Off` short-circuit path.
-      OXICLOUD_OPAQUE_MODE: 'off',
-      OXICLOUD_OPAQUE_SERVER_SETUP: '',
+      OXICLOUD_AUTH_OPAQUE_MODE: 'off',
+      OXICLOUD_AUTH_OPAQUE_SERVER_SETUP: '',
     },
   },
 });