feat(runtime): implement single-article consolidation runtime and modularize codebase

tests/runtime/integration/test_ecp_rejection_flow.py

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+"""Integration test for ECP rejection producing zero Markdown files covering scenario OUT-008."""
+
+import asyncio
+import json
+from pathlib import Path
+
+from src.runtime.cli.consolidate import run_consolidation
+
+
+def test_ecp_rejection_flow_produces_zero_markdown(tmp_path: Path):
+    # Setup non-related article
+    non_related_article = {
+        "crawled_url": "https://example.com/art_recipe",
+        "selected_extractor": "trafilatura",
+        "input_meta": {
+            "titulo": "Receita de Bolo de Cenoura",
+            "url": "https://example.com/art_recipe",
+        },
+        "trafilatura": {
+            "title": "Receita de Bolo de Cenoura",
+            "canonical_url": "https://example.com/art_recipe",
+            "body_text": "# Receita de Bolo de Cenoura\n\nMisture as cenouras raladas com ovos, farinha e açúcar no liquidificador e asse por 40 minutos.",
+        },
+    }
+    art_file = tmp_path / "article_unrelated.json"
+    art_file.write_text(json.dumps(non_related_article), encoding="utf-8")
+
+    ecp_file = Path("examples/sample_ecp_snapshot.json")
+
+    # Custom config outputting to tmp_path
+    cfg_data = json.loads(Path("runtime_config.local.json").read_text(encoding="utf-8"))
+    out_dir = tmp_path / "output_articles"
+    db_file = tmp_path / "test_runtime.db"
+    cfg_data["paths"]["output_dir"] = str(out_dir)
+    cfg_data["paths"]["sqlite_db"] = str(db_file)
+    cfg_file = tmp_path / "custom_config.json"
+    cfg_file.write_text(json.dumps(cfg_data), encoding="utf-8")
+
+    exit_code = asyncio.run(run_consolidation(art_file, ecp_file, cfg_file))
+    assert exit_code == 0
+
+    # Verify zero .md files exist in output directory
+    md_files = list(out_dir.glob("*.md"))
+    assert len(md_files) == 0, f"Expected 0 Markdown files on rejected ECP, found: {md_files}"
+
+    # Verify .result.json exists with final_status 'rejected_ecp' and generate_markdown False
+    result_files = list(out_dir.glob("*.result.json"))
+    assert len(result_files) == 1
+    manifest = json.loads(result_files[0].read_text(encoding="utf-8"))
+    assert manifest["final_status"] == "rejected_ecp"
+    assert manifest["generate_markdown"] is False
+    assert manifest["markdown_path"] is None
+    assert manifest["markdown_hash"] is None