Minimap with zoom in the bottom right, full map on M; cards move to the bottom centre (t32)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/PROJECT_MAP.md

@@ -390,7 +390,7 @@ Shared player state; the world save remains a complete standalone fallback.
 Starting, loading and quitting a game; modal dialogs; the pause menu.
 - functions: showLoading, enterGame, setupNewWorld, startNewWorld, startFromSave, loadSavedWorld, quitToTitle, refreshContinue, anyModal, openModal, closeModal, closeAllModals, topModal, dialog, openPause, renderWorlds
 
-### src/ui/settings.js (124 lines)
+### src/ui/settings.js (125 lines)
 The settings screen.
 - functions: openSettings, renderSettings, applySettings, toggleFullscreen, confirmWipe
 - variables: SET_TABS, setTab
@@ -418,7 +418,7 @@ The selected tool and piece: R / Q / E, drill width, filter picker, the selectio
 Discovery cards, hover info (I) and the cursor label.
 - functions: showCard, howText, discoveryCard, reactionsOf, hoverInfo, renderInfo, drawCursorLabel
 
-### src/ui/input.js (89 lines)
+### src/ui/input.js (91 lines)
 Keyboard and mouse listeners.
 - functions: isTyping
 - variables: canvas
@@ -442,7 +442,12 @@ Previews drawn under the cursor: build ghosts, drill aim and pulses, selections,
 Events from the simulation (emit) turned into sounds, toasts and cards.
 - functions: drainEvents
 
-### src/ui/loop.js (133 lines)
+### src/ui/map.js (93 lines)
+Shared world colours, minimap and full map.
+- functions: resetMap, mapArea, updateMap, drawMap, mapFit, drawFullMap, openMap, zoomMap, zoomMinimap
+- variables: MAP_S, MAP
+
+### src/ui/loop.js (134 lines)
 The frame loop and boot.
 - functions: scanVisible, frame, boot
 - variables: lastT, acc, lastRender, frameMs, simMs, fpsSm, ambientT