feat: implement memory and evidence administration with guided repairs

Add PostgreSQL-backed memory, editable evidence with source review and activation, and human-approved archive repairs across the harness, API, and UI. Include migrations, deployment support, regression coverage, and validation documentation.

Refresh permissions from validated session roles so existing administrator logins can access newly deployed archive management features.

harness/tests/test_vector_migration_packaging.py

@@ -34,6 +34,9 @@ def test_built_wheel_omits_vector_sql_migrations_and_discovers_cli(tmp_path):
     assert not any(name.startswith("tht/migrations/vector/") for name in names)
     assert "tht/migrations/sessions/001_schema.sql" in names
     assert "tht/migrations/sessions/002_security.sql" in names
+    assert "tht/migrations/memory/001_memory.sql" in names
+    assert "tht/migrations/memory/002_hybrid_projection.sql" in names
+    assert "tht/migrations/memory/003_review_receipts.sql" in names
 
     subprocess.run(
         [sys.executable, "-m", "pip", "install", "--no-deps", "--target", str(target), wheel],