feat: ship default safety negative prompt for SFW-by-default consumers

safety_negative_prompt.txt

@@ -0,0 +1 @@
+child, minor, underage, teen, teenager, young, kid, baby, infant, toddler, schoolgirl, schoolboy, loli, shota, nsfw, nude, naked, explicit, sexual, sex, porn, pornographic, erotic, lewd, suggestive, intimate, breast, nipple, cleavage, genital, genitalia, penis, vagina, vulva, anus, butt, buttocks, crotch, groin, gore, blood, bloody, mutilation, dismemberment, decapitation, severed, wound, injury, corpse, dead body, graphic violence, torture, brutality, abuse, self-harm, hate symbol, swastika, nazi, extremist