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__/dada-interior.test.js

@@ -0,0 +1,54 @@
+/**
+ * Dada movement hall must read as a modern cabaret, not a barred cell.
+ *   node --test server/__tests__/dada-interior.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 STYLES = fs.readFileSync(path.join(ROOT, 'client/src/data/movement-interior-styles.ts'), 'utf8');
+const WINDOWS = fs.readFileSync(path.join(ROOT, 'client/src/components/GalleryWindows.tsx'), 'utf8');
+const DETAILS = fs.readFileSync(path.join(ROOT, 'client/src/components/hall-details/modernism.tsx'), 'utf8');
+
+function dadaSalonBlock() {
+  const start = STYLES.indexOf("'dada-salon'");
+  assert.ok(start >= 0, 'dada-salon style must exist');
+  const next = STYLES.indexOf('mk(', start + 1);
+  return STYLES.slice(start, next > start ? next : undefined);
+}
+
+function dadaDetailsBlock() {
+  const start = DETAILS.indexOf('export function DadaDetails');
+  assert.ok(start >= 0, 'DadaDetails must exist');
+  const next = DETAILS.indexOf('export function ', start + 1);
+  return DETAILS.slice(start, next > start ? next : undefined);
+}
+
+describe('Dada interior — modern cabaret, no prison vibe', () => {
+  it('declares a picture window style (open glass, no iron grid)', () => {
+    assert.match(STYLES, /\| 'picture'/);
+    assert.match(WINDOWS, /style === 'picture'/);
+  });
+
+  it('does not use factory or gothic-lancet windows (barred / cell look)', () => {
+    const block = dadaSalonBlock();
+    assert.doesNotMatch(block, /style: 'factory'/);
+    assert.doesNotMatch(block, /style: 'gothic-lancet'/);
+    assert.match(block, /style: 'picture'/);
+  });
+
+  it('uses modern painted surfaces instead of dingy brick cell walls', () => {
+    const block = dadaSalonBlock();
+    assert.doesNotMatch(block, /wallSide: 'brick'/);
+    assert.match(block, /painted-flat|painted-emulsion/);
+    assert.match(block, /Modern|cabaret|collage/i);
+  });
+
+  it('DadaDetails has no service pipe / iron-bar geometry', () => {
+    const block = dadaDetailsBlock();
+    assert.doesNotMatch(block, /Service pipe|cylinderGeometry/);
+    assert.match(block, /collage|cabaret|panel/i);
+  });
+});