seeding expansion

also: replace energy output with energy output density

tests/test_admin.py

@@ -0,0 +1,48 @@
+"""Tests for admin panel — clear_all, reseed, and additive reseed."""
+
+from __future__ import annotations
+
+from physcom.seed.transport_example import load_transport_seed
+
+
+def test_clear_all_wipes_data(seeded_repo):
+    """clear_all() should remove all rows from every table."""
+    repo = seeded_repo
+    assert len(repo.list_entities()) > 0
+    assert len(repo.list_domains()) > 0
+
+    repo.clear_all()
+
+    assert len(repo.list_entities()) == 0
+    assert len(repo.list_domains()) == 0
+    assert len(repo.list_dimensions()) == 0
+    assert sum(repo.count_combinations_by_status().values()) == 0
+    assert len(repo.list_pipeline_runs()) == 0
+
+
+def test_reseed_after_clear_restores_data(seeded_repo):
+    """Wipe then reseed should restore entity/domain counts."""
+    repo = seeded_repo
+    original_entities = len(repo.list_entities())
+    original_domains = len(repo.list_domains())
+
+    repo.clear_all()
+    assert len(repo.list_entities()) == 0
+
+    counts = load_transport_seed(repo)
+    assert len(repo.list_entities()) == original_entities
+    assert len(repo.list_domains()) == original_domains
+    assert counts["platforms"] + counts["power_sources"] == original_entities
+
+
+def test_additive_reseed_no_duplicates(seeded_repo):
+    """Running reseed on an already-seeded DB should not create duplicates."""
+    repo = seeded_repo
+    before = len(repo.list_entities())
+
+    counts = load_transport_seed(repo)
+
+    assert len(repo.list_entities()) == before
+    assert counts["platforms"] == 0
+    assert counts["power_sources"] == 0
+    assert counts["domains"] == 0