Trying to Survive as Cannon Fodder in a Steampunk World

Clementine Ives had barely started reading a steampunk romance story when she learns that one of her best friend betrayed her, not only stealing her patent but stealing her man. Clementine decides to drown her sorrows in alcohol but accidently falls into the river and drowns.
How could she die before she made her ex-boyfriend and that shameless home wreaker regret everything!
Luckily Clementine wakes ups again, unfortunately for her she transmigrated into the steampunk story she just started reading. What's worse is that she transmigrated into the body of the short-lived wicked cannon fodder only meant to highlight the female lead's kindness and intelligence.
Clementine vows to avoid her ending by avoiding all of the main leads and supporting characters opting to instead develop her talents and skills in engineering and inventing.
Unfortunately, fate catches up with her and she find herself in a perilous situation. Barely managing to avoid her gruesome death Clementine finds herself tangled in political intrigue when she accidently stumbles upon a legendary artifact that the cruel and ruthless cabal only known as the Mechanist Guild, has been searching for.
Why are the male lead and the villain so interested in her the female lead is right over there? Why are they meddling in a small cannon fodder's life?
Why is the female lead trying to form a sisterly bond with her she should ignore the small cannon fodder!
....
"Your brilliance outshines the brightest gears in the clockwork of my thoughts, leaving me endlessly captivated by the dazzling intricacy of your mind."
Hey! Stay away I don't want to be the female lead!

"We have to work together to help women succeed in this unfair society! I couldn't do it without you my sister!"
Stop pampering me your true love is the male lead!

"I wish I could keep you chained up in a cage so I could watch you without having to share you with others. But you shine brighter when you are free so I'll just have to remove the eyes of any man that dares to look at you!"
Leave me alone the heroes are right over there!

Why can't this little cannon fodder live her peaceful salted fish inventor lifestyle!