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__/no-factory-windows.test.js

@@ -0,0 +1,34 @@
+/**
+ * No movement hall may use factory (iron-bar grid) windows — they read as prison cells.
+ *   node --test server/__tests__/no-factory-windows.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');
+
+function styleBlock(id) {
+  const start = STYLES.indexOf(`'${id}'`);
+  assert.ok(start >= 0, `${id} must exist`);
+  const next = STYLES.indexOf('mk(', start + 1);
+  return STYLES.slice(start, next > start ? next : undefined);
+}
+
+describe('Movement interiors — no factory / iron-bar windows', () => {
+  it('no authored movement style uses factory windows', () => {
+    // Only count style: 'factory' assignments inside BY_MOVEMENT_ID mk() blocks,
+    // not the GalleryWindowStyle union member.
+    const uses = [...STYLES.matchAll(/style:\s*'factory'/g)];
+    assert.equal(uses.length, 0, `found ${uses.length} factory window assignment(s)`);
+  });
+
+  it('Futurism uses open picture or clerestory daylight, not bars', () => {
+    const block = styleBlock('futurist-loft');
+    assert.doesNotMatch(block, /style: 'factory'/);
+    assert.match(block, /style: 'picture'|style: 'ribbon'|style: 'clerestory'|style: 'skylight'/);
+    assert.match(block, /open|ribbon|picture|glass/i);
+  });
+});