Fix project creation: code-based in runner, not delegated to Step 2 LLM

Root causes fixed:
1. PROJECT_TOOLS removed from Step 2 tool set — project assignment is now
   exclusively handled by the runner in code, never by the LLM.
2. When Step 1 returns "new", runner calls execute_on_client insert/projects
   directly (before Step 2), gets the created id, and passes it as context.
3. Newly created projects are appended to the local `projects` list so that
   subsequent files in the same run can match to them via Step 1 — prevents
   one project per file when multiple files share the same topic.

Also add tests/test_classify_file.py with pytest cases for _classify_file
and a CLI runner: python -m tests.test_classify_file <file> [project...]

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/test_classify_file.py

@@ -0,0 +1,184 @@
+"""Unit tests for Step 1 file classification (_classify_file).
+
+These tests call the real LLM so they require OPENAI_API_KEY / LLM env vars.
+Run with: pytest tests/test_classify_file.py -v
+
+To run a quick manual check against a real file without the full UI:
+    python -m tests.test_classify_file <path/to/file.txt> [project_name...]
+"""
+
+from __future__ import annotations
+
+import asyncio
+import sys
+
+import pytest
+
+from app.core.agent_runner import _classify_file
+
+
+# ── Fixtures ──────────────────────────────────────────────────────────────
+
+PROJECTS_SAMPLE = [
+    {
+        "id": "aaaa-0001-0000-0000-000000000001",
+        "name": "ARPA Sicilia POC",
+        "status": "active",
+        "aiSummary": "Proof of concept for AI features targeting ARPA Sicilia agency.",
+    },
+    {
+        "id": "bbbb-0002-0000-0000-000000000002",
+        "name": "SNAM AI Meeting Prep",
+        "status": "active",
+        "aiSummary": "AI-assisted preparation of meeting materials for SNAM.",
+    },
+    {
+        "id": "cccc-0003-0000-0000-000000000003",
+        "name": "SFERA+ Wave 2",
+        "status": "active",
+        "aiSummary": "Second wave of the SFERA+ whitelist project.",
+    },
+]
+
+ARPA_EMAIL = """\
+to: roberto.musso@hpe.com; luca.tondin@hpecds.com
+isImportance: normal
+hasAttachment: True
+---
+## Body
+Buongiorno,
+
+In riferimento alla riunione di ieri sul POC ARPA Sicilia, vi invio il riassunto
+dei deliverable concordati:
+- Preparare demo entro il 30 marzo
+- Condividere documentazione tecnica con il team ARPA
+- Fissare call di follow-up la prossima settimana
+
+Cordiali saluti
+Roberto Marchetti
+"""
+
+SNAM_EMAIL = """\
+to: roberto.musso@hpe.com
+isImportance: high
+hasAttachment: False
+---
+## Body
+Ciao,
+ti invio l'agenda per la riunione SNAM di domani.
+Per favore conferma la tua presenza.
+"""
+
+UNRELATED_EMAIL = """\
+to: roberto.musso@hpe.com
+isImportance: normal
+---
+## Body
+Benvenuto nel programma HPE Employee Learning Series.
+Completa la formazione richiesta entro la fine del trimestre.
+"""
+
+
+# ── Tests ─────────────────────────────────────────────────────────────────
+
+
+@pytest.mark.asyncio
+async def test_classify_arpa_matches_existing():
+    project_id, domains, new_name = await _classify_file(
+        file_path="arpa_email.txt",
+        file_content=ARPA_EMAIL,
+        projects=PROJECTS_SAMPLE,
+        config_data_types=["tasks", "notes", "timelines"],
+    )
+    assert project_id == "aaaa-0001-0000-0000-000000000001", (
+        f"Expected ARPA project, got project_id={project_id!r} new_name={new_name!r}"
+    )
+    assert new_name is None
+
+
+@pytest.mark.asyncio
+async def test_classify_snam_matches_existing():
+    project_id, domains, new_name = await _classify_file(
+        file_path="snam_email.txt",
+        file_content=SNAM_EMAIL,
+        projects=PROJECTS_SAMPLE,
+        config_data_types=["tasks", "notes"],
+    )
+    assert project_id == "bbbb-0002-0000-0000-000000000002", (
+        f"Expected SNAM project, got project_id={project_id!r} new_name={new_name!r}"
+    )
+
+
+@pytest.mark.asyncio
+async def test_classify_unrelated_returns_new():
+    project_id, domains, new_name = await _classify_file(
+        file_path="learning_email.txt",
+        file_content=UNRELATED_EMAIL,
+        projects=PROJECTS_SAMPLE,
+        config_data_types=["tasks", "notes"],
+    )
+    assert project_id == "new"
+    assert new_name is not None  # LLM should suggest a name
+
+
+@pytest.mark.asyncio
+async def test_classify_empty_file_returns_new():
+    project_id, domains, new_name = await _classify_file(
+        file_path="empty.txt",
+        file_content="   ",
+        projects=PROJECTS_SAMPLE,
+        config_data_types=["tasks"],
+    )
+    assert project_id == "new"
+
+
+@pytest.mark.asyncio
+async def test_classify_no_projects_returns_new():
+    project_id, domains, new_name = await _classify_file(
+        file_path="arpa_email.txt",
+        file_content=ARPA_EMAIL,
+        projects=[],
+        config_data_types=["tasks", "notes"],
+    )
+    assert project_id == "new"
+    assert new_name is not None
+
+
+# ── CLI quick-test runner ─────────────────────────────────────────────────
+
+
+async def _cli_test(file_path: str, project_names: list[str]) -> None:
+    """Run Step 1 classification against a real file from the CLI."""
+    import json
+    from pathlib import Path
+
+    content = Path(file_path).read_text(encoding="utf-8", errors="replace")
+    projects = [
+        {"id": f"test-id-{i:04d}", "name": name, "status": "active", "aiSummary": ""}
+        for i, name in enumerate(project_names)
+    ]
+
+    print(f"\nClassifying: {file_path}")
+    print(f"Projects in context: {[p['name'] for p in projects]}\n")
+
+    project_id, domains, new_name = await _classify_file(
+        file_path=file_path,
+        file_content=content,
+        projects=projects,
+        config_data_types=["tasks", "notes", "timelines"],
+    )
+
+    result = {
+        "project_id": project_id,
+        "matched_name": next((p["name"] for p in projects if p["id"] == project_id), None),
+        "new_project_name": new_name,
+        "domains": domains,
+    }
+    print(json.dumps(result, indent=2, ensure_ascii=False))
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python -m tests.test_classify_file <file_path> [project_name ...]")
+        sys.exit(1)
+    asyncio.run(_cli_test(sys.argv[1], sys.argv[2:]))