debug: add /debug-fb/facturas endpoint to search by NUM_FACTURA range

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

app/routes/debug_fb.py

@@ -349,6 +349,48 @@ async def debug_preview_ventas(
         return JSONResponse({"ok": False, "traceback": traceback.format_exc()})
 
 
+@router.get("/facturas")
+async def debug_facturas(
+    desde: int = Query(..., description="NUM_FACTURA desde"),
+    hasta: int = Query(..., description="NUM_FACTURA hasta"),
+    user: dict = Depends(get_current_user),
+):
+    """Busca recepciones por rango de NUM_FACTURA en Firebird."""
+    try:
+        conn = get_connection()
+        cfg = {r["key"]: r["value"] for r in conn.execute("SELECT * FROM config").fetchall()}
+        conn.close()
+        fb, ok, msg = get_firebird_from_config(cfg)
+        if not ok:
+            return JSONResponse({"ok": False, "error": msg})
+
+        ok1, _, rows = fb.execute_query("""
+            SELECT
+                r.IDRECEPCION, TRIM(r.PREFIJO) AS PREFIJO, r.NUM_FACTURA,
+                CAST(r.FECHA_RECEPCION AS VARCHAR(30)) AS FECHA_RECEPCION,
+                r.COD_PACIENTE,
+                TRIM(r.NIT_EMPRESA) AS NIT_EMPRESA,
+                TRIM(e.CODCONTRATO) AS CODCONTRATO,
+                TRIM(e.NOMBRE) AS NOM_EMPRESA,
+                (SELECT COUNT(*) FROM RELACION rel WHERE rel.IDRECEPCION = r.IDRECEPCION) AS N_EXAMENES
+            FROM RECEPCION r
+            LEFT JOIN EMPRESA e ON e.NIT = r.NIT_EMPRESA
+            WHERE r.NUM_FACTURA BETWEEN ? AND ?
+            ORDER BY r.NUM_FACTURA, r.IDRECEPCION
+        """, (desde, hasta))
+        fb.disconnect()
+
+        return JSONResponse({
+            "ok": ok1,
+            "desde": desde,
+            "hasta": hasta,
+            "count": len(rows or []),
+            "rows": list(rows or []),
+        })
+    except Exception:
+        return JSONResponse({"ok": False, "traceback": traceback.format_exc()})
+
+
 @router.get("/cups")
 async def find_cups(request: Request, user: dict = Depends(get_current_user)):
     try: