The before_agent_start handler now scans the active session context via
ctx.sessionManager.buildSessionContext() for an existing pi-project-map-hint
custom message and skips injection when one is already present in the
current branch. This prevents duplicate visible hints in advisory/pre-init
modes and duplicate hidden hints in strong/strict modes. The hint is
automatically re-injected after compaction or /tree navigation removes it
from the active path.
Also removes the unused hooks/on-prompt.ts prompt-text injector.
Developer
5f1c107667