feat(web): Multi-Copy modal earlier; Multi-Copy stage before lands; bump version to 2.1.1; update CHANGELOG\n\n- Modal triggers after commander selection (Step 2)\n- Multi-Copy applied first in Step 5, lands next\n- Keep mc_summary/clamp/adjustments wiring intact\n- Tests green

code/tests/test_multicopy_web_flow.py

@@ -0,0 +1,58 @@
+import importlib
+import pytest
+try:
+    from starlette.testclient import TestClient  # type: ignore
+except Exception:  # pragma: no cover - optional dep in CI
+    TestClient = None  # type: ignore
+
+
+def _inject_minimal_ctx(client, selection: dict):
+    # Touch session to get sid
+    r = client.get('/build')
+    assert r.status_code == 200
+    sid = r.cookies.get('sid')
+    assert sid
+
+    tasks = importlib.import_module('code.web.services.tasks')
+    sess = tasks.get_session(sid)
+    # Minimal commander/tag presence to satisfy route guards
+    sess['commander'] = 'Dummy Commander'
+    sess['tags'] = []
+
+    # Build a minimal staged context with only the builder object; no stages yet
+    from deck_builder.builder import DeckBuilder
+    b = DeckBuilder(output_func=lambda *_: None, input_func=lambda *_: "", headless=True)
+    b.card_library = {}
+    ctx = {
+        'builder': b,
+        'logs': [],
+        'stages': [],
+        'idx': 0,
+        'last_log_idx': 0,
+        'csv_path': None,
+        'txt_path': None,
+        'snapshot': None,
+        'history': [],
+        'locks': set(),
+        'custom_export_base': None,
+    }
+    sess['build_ctx'] = ctx
+    # Persist multi-copy selection so the route injects the stage on continue
+    sess['multi_copy'] = selection
+    return sid
+
+
+def test_step5_continue_runs_multicopy_stage_and_renders_additions():
+    if TestClient is None:
+        pytest.skip("starlette not available")
+    app_module = importlib.import_module('code.web.app')
+    client = TestClient(app_module.app)
+    sel = {"id": "dragons_approach", "name": "Dragon's Approach", "count": 12, "thrumming": True}
+    _inject_minimal_ctx(client, sel)
+    r = client.post('/build/step5/continue')
+    assert r.status_code == 200
+    body = r.text
+    # Should show the stage label and added cards including quantities and Thrumming Stone
+    assert "Dragon's Approach" in body
+    assert "×12" in body or "x12" in body or "× 12" in body
+    assert "Thrumming Stone" in body