Add campfire maintenance gameplay hooks

Docs/TechnicalDesignDocument.md

@@ -369,6 +369,13 @@ modifiers, and a suppression-pressure hook that future rain, carried water,
 dirt/sand, firebreaks, and tools can drive. This establishes deterministic fire
 state for clients without letting clients decide whether the world is burning.
 
+Fire maintenance gameplay uses the same authority path as ignition and fuel.
+Interacting with a lit campfire now presents as maintaining the fire; if the
+player has wood it still adds fuel, and if not it watches/maintains the fire.
+Native hooks also let future UI/actions explicitly clear the fire area or
+contain the fire. Watched, cleared, contained, and extinguished fires reduce
+risk, while neglected fires continue accumulating ignition and spread pressure.
+
 Campfires expose native extinguish logic through `AAgrarianCampfire::Extinguish`.
 Extinguishing clears remaining fuel, turns off replicated lit state, and reuses
 the same visual update path as natural fuel depletion.