Polish movement hall interiors: clear doors and bay columns, tone floors and windows.

Document hang keep-outs and period-module fixes; leave columns fixed while packing frames into gaps.

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

server/__tests__/doorway-clearance.test.js

@@ -0,0 +1,38 @@
+/**
+ * Low wall mouldings must not run through exit doors on the end walls.
+ *   node --test server/__tests__/doorway-clearance.test.js
+ */
+const { describe, it } = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const path = require('node:path');
+
+const ROOT = path.join(__dirname, '..', '..');
+const PRIMITIVES = fs.readFileSync(path.join(ROOT, 'client/src/components/hall-details/primitives.tsx'), 'utf8');
+const GEOMETRY = fs.readFileSync(path.join(ROOT, 'client/src/components/hall-details/geometry.ts'), 'utf8');
+const COURTLY = fs.readFileSync(path.join(ROOT, 'client/src/components/hall-details/courtly.tsx'), 'utf8');
+
+function flemishBlock() {
+  const start = COURTLY.indexOf('export function FlemishDetails');
+  assert.ok(start >= 0);
+  const next = COURTLY.indexOf('export function ', start + 1);
+  return COURTLY.slice(start, next > start ? next : undefined);
+}
+
+describe('Doorway clearance for wall mouldings', () => {
+  it('exports a shared door half-clearance used by WallBand', () => {
+    assert.match(GEOMETRY, /DOOR_CLEAR_HALF\s*=\s*1\.45/);
+    assert.match(PRIMITIVES, /DOOR_CLEAR_HALF/);
+  });
+
+  it('WallBand splits back/front bands that sit in the door height', () => {
+    assert.match(PRIMITIVES, /crossesDoor/);
+    assert.match(PRIMITIVES, /DOOR_CLEAR_HALF/);
+    assert.match(PRIMITIVES, /leftX|rightX/);
+  });
+
+  it('Flemish linenfold ribs skip the back-wall doorway', () => {
+    const block = flemishBlock();
+    assert.match(block, /DOOR_CLEAR_HALF|Math\.abs\(x\)\s*>/);
+  });
+});