Say who is playing, what you can press, and where you are in the Stage

Mostly presentation, plus one rules fix found on the way.

test/apply.test.ts

@@ -635,3 +635,54 @@ describe('an industry handles every commodity its profile names (regression)', (
     assert.deepEqual(twoCommodity, ['powerPlant', 'grocersWarehouse']);
   });
 });
+
+describe('a Modifier only goes beside a host that can use it (regression)', () => {
+  it('offers a Waiting Area no square that is not beside a Passenger Facility', () => {
+    // REGRESSION. Every Modifier prints its host — a Waiting Area, Restaurant and Hotel go beside a
+    // Passenger Facility; Forklifts beside a Freight House or Packing Sheds — and the placement
+    // check ignored all of it, asking only "does this square touch ANY facility?". A Waiting Area
+    // was therefore legal beside a Mine Tipple, and `applyModifier` handed its extra Porter to
+    // whichever facility the scan happened to reach first. The player was shown three legal spots
+    // for a card that has one.
+    const s = game();
+    const area = areaOf(s, 0);
+
+    // A freight industry away from the Office, and nothing else nearby.
+    area.grid.set(coordKey({ row: -1, col: 4 }), {
+      geometry: { kind: 'facility', facility: 'mineTipple', axis: 'ew' },
+      baseOperationalRail: true, standing: [], modifiers: [], enhancements: [],
+      facility: {
+        kind: 'freight', subtype: 'mineTipple',
+        allows: { outbound: true, inbound: false },
+        outboundBox: [], inboundBox: [], capacity: { outbound: 1, inbound: 0 },
+        menAtWork: [null, null, null],
+        industryTrack: { length: 2, cars: [] },
+        laborers: 1, porters: 0, usedThisStage: { laborers: 0, porters: 0 },
+      },
+    } as never);
+
+    const waiting = [...s.cards.entries()].find(
+      ([, c]) => c.kind.kind === 'modifier' && c.kind.modifier === 'waitingArea',
+    );
+    assert.ok(waiting, 'no Waiting Area card in the deck');
+    const [cardId] = waiting!;
+    s.decks.hands.set(0, [cardId]);
+    applyIntent(s, 0, { type: 'localOps.choose', option: 'draw' });
+
+    const spots = legalActions(s, 0).filter(
+      (i) => i.type === 'card.play' && i.cardId === cardId && i.placement !== undefined,
+    );
+    assert.ok(spots.length > 0, 'a Waiting Area has nowhere legal at all — the Office is a host');
+
+    // Every offered square must touch the Office and none may touch only the Mine Tipple.
+    for (const i of spots) {
+      const p = (i as { placement: { row: number; col: number } }).placement;
+      const touchesOffice =
+        Math.abs(p.row - area.officeCoord.row) <= 1 && Math.abs(p.col - area.officeCoord.col) <= 1;
+      assert.ok(
+        touchesOffice,
+        `a Waiting Area was offered (${p.row}, ${p.col}), which is not beside a Passenger Facility`,
+      );
+    }
+  });
+});