Respect iOS/Android safe areas in launcher and touch chrome.

Layout interactive UI against love.window.getSafeArea so notch, Dynamic Island, and home-indicator insets no longer clip controls, while keeping the game framebuffer edge-to-edge.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/core/SafeArea.lua

@@ -0,0 +1,40 @@
+-- Usable window rect for mobile chrome (notch / Dynamic Island / home
+-- indicator / Android display cutouts).  Wraps love.window.getSafeArea when
+-- the engine provides it; otherwise the full graphics window.
+--
+-- Desktop and headless stubs return the full window, so callers can always
+-- layout against this rect without platform branches.  Interactive chrome
+-- (touch overlay, launcher) should prefer this over getDimensions; the game
+-- canvas may still letterbox into the full framebuffer for immersion.
+
+local SafeArea = {}
+
+function SafeArea.rect()
+  local ww, wh = 0, 0
+  if love and love.graphics and love.graphics.getDimensions then
+    ww, wh = love.graphics.getDimensions()
+  end
+  if ww <= 0 then ww = 1 end
+  if wh <= 0 then wh = 1 end
+
+  if not (love and love.window and love.window.getSafeArea) then
+    return 0, 0, ww, wh
+  end
+
+  local x, y, w, h = love.window.getSafeArea()
+  if type(x) ~= "number" or type(y) ~= "number"
+     or type(w) ~= "number" or type(h) ~= "number"
+     or w <= 0 or h <= 0 then
+    return 0, 0, ww, wh
+  end
+
+  -- Clamp to the drawable window so a bad / mid-rotation backend cannot
+  -- push layout outside the surface.
+  x = math.max(0, math.min(x, ww))
+  y = math.max(0, math.min(y, wh))
+  w = math.max(1, math.min(w, ww - x))
+  h = math.max(1, math.min(h, wh - y))
+  return x, y, w, h
+end
+
+return SafeArea