feat: add StemAtlas Streamlit app, explorer, Docker deployment, blog charts

tests/test_explorer_import.py

@@ -0,0 +1,14 @@
+"""Smoke test: explorer module is importable without DB or heavy computation."""
+
+import importlib
+
+
+def test_explorer_importable():
+    mod = importlib.import_module("explorer")
+    assert hasattr(mod, "run_app")
+    assert callable(mod.run_app)
+    assert hasattr(mod, "load_positions")
+    assert hasattr(mod, "load_motions_df")
+    assert hasattr(mod, "query_similar")
+    assert hasattr(mod, "build_compass_tab")
+    assert hasattr(mod, "build_search_tab")

tests/test_home_import.py

@@ -0,0 +1,38 @@
+"""Smoke test: Home module is importable without DB or heavy computation."""
+
+import importlib
+import sys
+
+
+def test_home_importable():
+    # Streamlit cannot run set_page_config outside of a server context,
+    # so we only verify the file can be parsed/compiled, not fully executed.
+    import ast
+    import os
+
+    home_path = os.path.join(os.path.dirname(os.path.dirname(__file__)), "Home.py")
+    with open(home_path) as f:
+        source = f.read()
+
+    # Verify the file parses as valid Python
+    tree = ast.parse(source)
+
+    # Verify st.set_page_config is called at module level (first Streamlit command)
+    calls = [
+        node
+        for node in ast.walk(tree)
+        if isinstance(node, ast.Call)
+        and isinstance(node.func, ast.Attribute)
+        and node.func.attr == "set_page_config"
+    ]
+    assert calls, "Home.py must call st.set_page_config()"
+
+    # Verify page links exist (st.page_link calls)
+    page_links = [
+        node
+        for node in ast.walk(tree)
+        if isinstance(node, ast.Call)
+        and isinstance(node.func, ast.Attribute)
+        and node.func.attr == "page_link"
+    ]
+    assert len(page_links) >= 2, "Home.py must have at least 2 st.page_link() calls"