chore: bump playground main-entrypoint chunk-size limit to 1960 KB

The fast-inbox per-block L1-to-L2 message bundle changes to the rollup circuit artifacts grew the
playground main entrypoint to 1936.60 KB on CI, just over the 1925 KB hard limit. Bump with headroom,
following the existing bump-log pattern in vite.config.ts.

Author: spalladino

playground/vite.config.ts

@@ -145,9 +145,10 @@ export default defineConfig(({ mode }) => {
         // - JB: bumped from 1750 => 1800 after adding the `aztec_utl_getTxEffect` oracle handler, which pulls TxEffect / FlatPublicLogs / PrivateLog / PublicDataWrite into the eager PXE import path (#22979).
         // - 2026-05-12: bumped from 1800 => 1850 after merge-train/barretenberg brought in further bb-side changes (multi-app kernel circuits #23076 etc.) that pushed the main entrypoint to 1801.31 KB, just over the limit raised four days earlier.
         // - 2026-06-08: bumped from 1850 => 1925 after aztec RPC namespace / client surface changes pushed the main entrypoint to 1872.57 KB on CI (playground cold build).
+        // - 2026-07-17: bumped from 1925 => 1960 after the fast-inbox per-block L1-to-L2 message bundle changes to the rollup circuit artifacts pushed the main entrypoint to 1936.60 KB on CI.
         {
           pattern: /assets\/index-.*\.js$/,
-          maxSizeKB: 1925,
+          maxSizeKB: 1960,
           description: 'Main entrypoint, hard limit',
         },
         // Bump log: