Statistica: pannello esiti, note, campi e allegati dei task per sessione, proxy e traduzioni (#58)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NABedeMX43pyXZbDNUgA5B

src/frontend/flask_app/blueprints/statistics.py

@@ -1,12 +1,13 @@
 """Metrologist blueprint - SPC statistics dashboard and API proxies."""
 import requests as http_requests
 
-from flask import Blueprint, jsonify, render_template, request, session
+from flask import Blueprint, abort, jsonify, render_template, request, session
 from flask_babel import gettext as _
 
 from blueprints.auth import login_required, role_required
 from config import Config
 from services.api_client import api_client
+from services.file_proxy import proxy_file  # #58: allegati dei task
 
 statistics_bp = Blueprint("statistics", __name__)
 
@@ -148,6 +149,33 @@ def api_runs():
     return jsonify(resp)
 
 
+@statistics_bp.route("/api/runs/<int:run_id>/task-results")
+@login_required
+@role_required("Metrologist")
+def api_run_task_results(run_id: int):
+    """Proxy: esiti, note, campi e allegati dei task di una sessione (#58)."""
+    resp = api_client.get(f"/api/statistics/runs/{run_id}/task-results")
+
+    if isinstance(resp, dict) and resp.get("error"):
+        error_body = {"error": True, "detail": resp.get("detail", "")}
+        if resp.get("session_expired"):
+            error_body["session_expired"] = True
+        return jsonify(error_body), resp.get("status_code", 500)
+
+    return jsonify(resp)
+
+
+@statistics_bp.route("/api/files/<path:file_path>")
+@login_required
+@role_required("Metrologist")
+def api_task_result_file(file_path: str):
+    """Proxy: allegati dei task (#58). Solo task_results/, mai altri file."""
+    # #58: il Metrologist non deve poter leggere altro dell'upload dir (es. statistics/).
+    if not file_path.startswith("task_results/") or ".." in file_path.split("/"):
+        abort(404)
+    return proxy_file(file_path)
+
+
 # ============================================================================
 # PROXY REPORT PDF → FastAPI
 # ============================================================================