feat: Add historical context files for team members and update project documentation with Slack archive import details

ai/context/people/bruce-meeks.md

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+# Bruce Meeks
+
+## Role
+
+Repeated Fidelity collaborator in XFlow-related work.
+
+---
+
+## Known Context
+
+- Reviewed and approved XFlow work repeatedly in historical threads
+- Sometimes covered XFlow iOS issues while others were unavailable
+- Later context suggests Bruce primarily worked on Android while still remaining a useful cross-platform contact
+- Relevant in release coordination, PR review, and parity discussions between iOS and Android
+
+---
+
+## Guidance
+
+- Treat Bruce as a useful source for cross-platform context and historical PR/review state
+- If future context clarifies the formal role/team, update this file directly