fix(office-hours): load the builder section for every builder-mode reply

Both census builder-wildness attempts answered a direct request for
adjacent unlocks without reading phase-2b-builder-brainstorm.md, whose
trigger read as applying only to the generative questions.

office-hours/sections/manifest.json

@@ -14,7 +14,7 @@
       "id": "phase-2b-builder-brainstorm",
       "file": "phase-2b-builder-brainstorm.md",
       "title": "Phase 2B builder-mode brainstorm",
-      "trigger": "running the builder-mode brainstorm (Phase 2B: operating principles, the wild exemplar, and the generative questions)"
+      "trigger": "giving any builder-mode response (Phase 2B: brainstorm questions and every suggestion, adjacent unlock or riff; holds the operating principles, the wild exemplar, the response posture and the generative questions)"
     },
     {
       "id": "design-and-handoff",