feat: Refactor communication context to generalize from Jeff to current manager and enhance people management structure

knowledge/agent-memory-rules.md

@@ -41,6 +41,7 @@ Examples:
 - approved manager guidance that changes work direction
 - confirmed version, dependency, or rollout facts tied to current work
 - corrections to previously stored project context
+- repeated named people with stable roles or communication relevance
 
 ---
 
@@ -93,10 +94,18 @@ This file should help standups and manager updates mention work items precisely.
 
 Use for durable project knowledge that should survive beyond the current work window.
 
-### `ai/context/people/jeff.md`
+### `ai/context/people/manager.md`
 
 Use only when a communication preference or manager expectation becomes stable enough to reuse repeatedly.
 
+### `ai/context/people/index.md` and `ai/context/people/*.md`
+
+Use these files for:
+
+- mapping roles to actual people
+- keeping named stakeholders recognizable across sessions
+- storing stable communication or responsibility context per person
+
 ### `ai/context/decisions/*.md`
 
 Use for explicit confirmed decisions with ongoing impact.