feat v1.23.0: doors & windows with live open/lock state

New markup tool 'Opening': click a wall — the opening snaps onto the nearest DERIVED
room wall (v1.19.0 model: openings keep absolute coords, so room edits never break
them) and takes its angle. Dialog: type, length in real cm (door 90 / window 120 —
per-space scale makes it honest), contact sensor (invertible), lock (doors).
Rendering after easy-floorplan (MIT): hinged leaf + swing arc drawing on via
stroke-dashoffset; window = two casements. No sensor → static plan defaults (door
open, window closed); unavailable freezes the default (pure openingAmount, tested).
Lock: padlock badge (green locked / orange unlocked / grey unknown); the lock is
never toggled from the plan — clicking shows an info card with both states.
snapToWall + openingAmount in logic.ts; space.openings validated server-side.
+2 tests (76). Verified live on the dacha (real TTLock + TRV window sensor).

test/logic.test.mjs

@@ -4,7 +4,7 @@ import {
   lqiColor, snapToGrid, segKey, samePoint, pointInPolygon, markerIdForBinding, averageLqi,
   fitView, declump, safeUrl, resolveTapAction, floorsOf, subst, spaceDisplayOf, roomFillColor,
   segmentCm, formatLength, roomEdges, roomPoly, pointOnBoundary, pointStrictlyInside, roomsOverlap,
-  mergeRooms, splitRoom, polygonArea, closestPointOnBoundary, isActiveState,
+  mergeRooms, splitRoom, polygonArea, closestPointOnBoundary, isActiveState, snapToWall, openingAmount,
 } from '../test-build/logic.js';
 import {
   iconFor, compileIconRules, isValidPattern, iconFromDeviceClasses,
@@ -407,3 +407,28 @@ test('isActiveState: a sensor outage calms the plan down, it never pulses foreve
   assert.ok(!isActiveState(undefined));
   assert.ok(!isActiveState(null));
 });
+
+test('snapToWall: projects onto the nearest derived wall with its angle; misses return null', () => {
+  const rooms = [{ poly: [[0, 0], [10, 0], [10, 10], [0, 10]] }];
+  const s = snapToWall([4, 0.6], rooms, 1);        // near the top wall
+  assert.deepEqual([s.x, s.y], [4, 0]);
+  assert.equal(Math.abs(s.angle) % 180, 0);         // horizontal wall
+  const v = snapToWall([10.4, 7], rooms, 1);        // near the right wall
+  assert.deepEqual([v.x, v.y], [10, 7]);
+  assert.equal(Math.abs(v.angle), 90);
+  assert.equal(snapToWall([5, 5], rooms, 1), null); // middle of the room: no wall within reach
+});
+
+test('openingAmount: doors default open, windows closed; outages freeze the default', () => {
+  assert.equal(openingAmount('door', null), 1);
+  assert.equal(openingAmount('window', null), 0);
+  assert.equal(openingAmount('door', 'unavailable'), 1);
+  assert.equal(openingAmount('window', 'unknown'), 0);
+  assert.equal(openingAmount('door', 'on'), 1);
+  assert.equal(openingAmount('door', 'off'), 0);
+  assert.equal(openingAmount('window', 'open'), 1);
+  // invert flips on/off but never the outage default
+  assert.equal(openingAmount('door', 'on', true), 0);
+  assert.equal(openingAmount('door', 'off', true), 1);
+  assert.equal(openingAmount('door', 'unavailable', true), 1);
+});