fix(headless): align the one-shot runner with the direct rosterless profile

The shipped headless profile is base + headless (the direct-core front
door), and its installation-owned migration rewrites the old three-bundle
tuple down to that template, so a one-shot run composes no preset roster.
The runner's optional preset composition was compensating in the wrong
direction: it re-added roster reads the shipped profile never satisfies,
and its golden pinned a header field only a roster-bearing deployment
produces. The runner, the headless bundle manifest, and the dsh-run golden
return to the direct shape; skills in a direct run flow through the base
host rows' global layer, which is what the repository-plugin e2e proves.

packages/bundle/headless/tsconfig.json

@@ -23,14 +23,11 @@
     {
       "path": "../../core/agent-default-model"
     },
-    {
-      "path": "../../core/session"
-    },
     {
       "path": "../../llm/llm"
     },
     {
-      "path": "../../preset/agent-presets"
+      "path": "../../core/session"
     },
     {
       "path": "../../support/invariants"