Fix Code Mode workspace context propagation

examples/acp-agent/code-mode.cordis.yml

@@ -17,14 +17,8 @@
         config:
           model: deepseek-v4-flash
           persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions'
-          # Disabled in Code Mode: fs tools run as run_code sub-dispatches and
-          # code-mode.ts deliberately drops sub-call `additionalContext`, so the
-          # nested/changed/removed AGENTS.md notices this feature emits after
-          # read/write/edit are discarded before the loop can append them.
-          # Enabling it would only ship the baseline prefix while silently
-          # dropping the dynamic updates, so keep it off until sub-dispatch
-          # context propagation lands.
-          workspaceContext: false
+          workspaceContext:
+            maxBytes: 65536
           tools:
             mode: code
           persona: |